Pub Date : 2023-10-30DOI: 10.1080/03067319.2023.2276513
Kamran Abbasi, Parveen Ali, Virginia Barbour, Thomas Benfield, Kirsten Bibbins-Domingo, Gregory E. Erhabor, Stephen Hancocks, Richard Horton, Laurie Laybourn-Langton, Robert Mash, Peush Sahni, Wadeia Mohammad Sharief, Paul Yonga, Chris Zielinski
{"title":"Time to treat the climate and nature crisis as one indivisible global health emergency","authors":"Kamran Abbasi, Parveen Ali, Virginia Barbour, Thomas Benfield, Kirsten Bibbins-Domingo, Gregory E. Erhabor, Stephen Hancocks, Richard Horton, Laurie Laybourn-Langton, Robert Mash, Peush Sahni, Wadeia Mohammad Sharief, Paul Yonga, Chris Zielinski","doi":"10.1080/03067319.2023.2276513","DOIUrl":"https://doi.org/10.1080/03067319.2023.2276513","url":null,"abstract":"","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"66 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136069637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-30DOI: 10.1080/03067319.2023.2271425
Md. Saiful Islam, Md. Towhidul Islam, Zulhilmi Ismail, Khalid A. Ibrahim, Rahmah N. Al-Qthanin, Abubakr M. Idris
ABSTRACTThe aim of the study was to evaluate heavy metals concentration based on the total and chemical fractions of sewage sludge, to identify the sources of heavy metals and to assess ecological risks. Thirty-six anaerobic mixed sludge samples were collected from six different types of sewage treatment plant network in Dhaka city, Bangladesh. Total and fraction concentration of heavy metals in sludge samples were analysed by inductively coupled plasma mass spectrometer following acid digestion. The mean ranges of chromium (Cr), nickel (Ni), copper (Cu), arsenic (As), cadmium (Cd), lead (Pb), iron (Fe), manganese (Mn) and zinc (Zn) in the sludges were 237.3–381.8, 108.5–220.2, 116.1–207.2, 14.9–56.1, 0.68–2.86, 72.4–172.0, 12055 –20,015, 64.8–170.6 and 117.5–178.5 mg/kg, respectively. The data of geochemical speciation showed that Fe, Zn, Ni, Cu and Mn were associated with the residual fraction, whereas As, Cd and Pb showed predominant proportion in the exchangeable fraction, indicating the severity of risk by As, Cd and Pb to the surrounding ecosystem. The findings of the study revealed that heavy metals posed moderate to considerable ecological risk. Anthropogenic activities including industrial wastes and agricultural chemicals are substantial sources for heavy metals in the sludge of STP network in the study area.KEYWORDS: Bangladeshheavy metalssequential extractionsludgeSTP network AcknowledgmentsThe samples collected in Bangladesh were brought into Japan based on the permission issued by the Yokohama Plant Protection Station (Import permit No. 25Y324 and 25Y1009). The authors are thankful to the authority of Patuakhali Science and Technology University (PSTU), Dumki, Patuakhali-8602, Bangladesh for sample processing and The University of Tokyo, Japan, for sample analysis. Furthermore, we are thankful for the kind help from the members of Dhaka University, Bangladesh, during the field sampling.Disclosure statementNo potential conflict of interest was reported by the author(s).Supplementary dataSupplemental data for this article can be accessed online at https://doi.org/10.1080/03067319.2023.2271425.Additional informationFundingThe authors extend their appreciation to the Deanship of Scientific Research at King Khalid University for funding this work through Large Group Research Project under grant number (R.G.P.2/326/44).
{"title":"Heavy metals in sludge from the sewage treatment plant network: a tool to evaluate source and risks of heavy metals to land application","authors":"Md. Saiful Islam, Md. Towhidul Islam, Zulhilmi Ismail, Khalid A. Ibrahim, Rahmah N. Al-Qthanin, Abubakr M. Idris","doi":"10.1080/03067319.2023.2271425","DOIUrl":"https://doi.org/10.1080/03067319.2023.2271425","url":null,"abstract":"ABSTRACTThe aim of the study was to evaluate heavy metals concentration based on the total and chemical fractions of sewage sludge, to identify the sources of heavy metals and to assess ecological risks. Thirty-six anaerobic mixed sludge samples were collected from six different types of sewage treatment plant network in Dhaka city, Bangladesh. Total and fraction concentration of heavy metals in sludge samples were analysed by inductively coupled plasma mass spectrometer following acid digestion. The mean ranges of chromium (Cr), nickel (Ni), copper (Cu), arsenic (As), cadmium (Cd), lead (Pb), iron (Fe), manganese (Mn) and zinc (Zn) in the sludges were 237.3–381.8, 108.5–220.2, 116.1–207.2, 14.9–56.1, 0.68–2.86, 72.4–172.0, 12055 –20,015, 64.8–170.6 and 117.5–178.5 mg/kg, respectively. The data of geochemical speciation showed that Fe, Zn, Ni, Cu and Mn were associated with the residual fraction, whereas As, Cd and Pb showed predominant proportion in the exchangeable fraction, indicating the severity of risk by As, Cd and Pb to the surrounding ecosystem. The findings of the study revealed that heavy metals posed moderate to considerable ecological risk. Anthropogenic activities including industrial wastes and agricultural chemicals are substantial sources for heavy metals in the sludge of STP network in the study area.KEYWORDS: Bangladeshheavy metalssequential extractionsludgeSTP network AcknowledgmentsThe samples collected in Bangladesh were brought into Japan based on the permission issued by the Yokohama Plant Protection Station (Import permit No. 25Y324 and 25Y1009). The authors are thankful to the authority of Patuakhali Science and Technology University (PSTU), Dumki, Patuakhali-8602, Bangladesh for sample processing and The University of Tokyo, Japan, for sample analysis. Furthermore, we are thankful for the kind help from the members of Dhaka University, Bangladesh, during the field sampling.Disclosure statementNo potential conflict of interest was reported by the author(s).Supplementary dataSupplemental data for this article can be accessed online at https://doi.org/10.1080/03067319.2023.2271425.Additional informationFundingThe authors extend their appreciation to the Deanship of Scientific Research at King Khalid University for funding this work through Large Group Research Project under grant number (R.G.P.2/326/44).","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"170 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136069438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-26DOI: 10.1080/03067319.2023.2269857
Sandrale Grace Mokue Mafo, Paul Alain Nanssou Kouteu, Donald Raoul Tchuifon Tchuifon, Cyrille Ghislain Fotsop, Mexent Zue Mve, Georges Teikam Kenda, Aurelien Bopda, Herman-Idriss Tiotsop Kuete, Christian Sadeu Ngakou, Nche George Ndifor-Angwafor, Martin Ruben Mouangue, Solomon Gabche Anagho
{"title":"Low-cost magnetic carbons-based rubber seed husks materials for highly efficient removal for reactive black 5 and reactive blue 19 textile dyes from wastewater","authors":"Sandrale Grace Mokue Mafo, Paul Alain Nanssou Kouteu, Donald Raoul Tchuifon Tchuifon, Cyrille Ghislain Fotsop, Mexent Zue Mve, Georges Teikam Kenda, Aurelien Bopda, Herman-Idriss Tiotsop Kuete, Christian Sadeu Ngakou, Nche George Ndifor-Angwafor, Martin Ruben Mouangue, Solomon Gabche Anagho","doi":"10.1080/03067319.2023.2269857","DOIUrl":"https://doi.org/10.1080/03067319.2023.2269857","url":null,"abstract":"","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"4 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134908768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-26DOI: 10.1080/03067319.2023.2271850
Hossein Shahriyari Far, Mina Najafi, Mahdi Hasanzadeh, Rahmatollah Rahimi
{"title":"Designing a novel porous Ti <sub>3</sub> C <sub>2</sub> T <sub>x</sub> MXene/MOF-based 3D-printed architecture as an efficient and easy recoverable adsorbent for organic dye removal from aqueous solution","authors":"Hossein Shahriyari Far, Mina Najafi, Mahdi Hasanzadeh, Rahmatollah Rahimi","doi":"10.1080/03067319.2023.2271850","DOIUrl":"https://doi.org/10.1080/03067319.2023.2271850","url":null,"abstract":"","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"138 1-2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134906787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACTDiclofenac (DCF), a common nonsteroidal anti-inflammatory drug, is frequently detected in aquatic environments, causing serious threat to aquatic organisms and humans through bioaccumulation, persistence, and toxicity. Using eco-friendly clay-based adsorbents, samples of halloysite (H) processed at 600°C (H600-0N) and then HCl-leached with 3 N concentration (H600-3N) were prepared, characterised by Inductively Coupled Plasma (ICP), N2 adsorption – desorption, and infrared spectroscopy with Fourier transform (FTIR), and used in DCF adsorption. H600-3N exhibited a substantial surface area increase from 63 m2 g−1 for H to 434 m2 g−1 due to an elevated SiO₂/Al₂O₃ ratio of 23.83 against 1.72 for H. In this context, H600-3N and H adsorbed 165 mg g−1 and 37.9 mg g−1 of DCF, respectively. The isotherms of H600-xN(x = 0 or 3) were adequately adjusted to the Langmuir-Freundlich model, while the kinetic data were suitably described by the pseudo-second order equation. Through cross-checking the results of characterisation, DCF adsorption and the FTIR investigation between DCF and H600-3N, a mechanism has been suggested that includes two main components: hydrogen bonding between the silanol’s hydrogen atom and the negatively charged carboxylate anion and hydrophobic interactions between the – Si – O – Si – entities and the DCF aromatic rings. The elucidation of intermolecular interactions between organic contaminants and 1:1 clay minerals is essential to develop the application of these abundant and low-cost materials in wastewater treatment.KEYWORDS: Halloysitemodificationcharacterizationdiclofenac adsorptioninteractionsmechanism Disclosure statementNo potential conflict of interest was reported by the author(s).
摘要双氯芬酸(DCF)是一种常见的非甾体类抗炎药,在水生环境中经常被检测到,通过生物蓄积性、持久性和毒性对水生生物和人类造成严重威胁。采用生态友好型粘土基吸附剂,制备了高岭土(H)在600℃(h600 ~ 0n)处理后,再以3n浓度(h600 ~ 3n)进行hcl浸出的样品,采用电感耦合等离子体(ICP)、N2吸附-解吸、傅里叶变换红外光谱(FTIR)对样品进行了表征,并将其用于DCF吸附。由于SiO₂/Al₂O₃比为23.83比1.72,H600-3N的比表面积从H的63 m2 g−1大幅增加到434 m2 g−1。在这种情况下,H600-3N和H分别吸附了165 mg g−1和37.9 mg g−1的DCF。H600-xN(x = 0或3)的等温线适当地调整为Langmuir-Freundlich模型,而动力学数据则适当地用拟二阶方程描述。通过对表征、DCF吸附和DCF与H600-3N之间的FTIR研究,提出了一种包括两个主要成分的机制:硅醇氢原子与带负电荷的羧酸阴离子之间的氢键和- Si - O - Si实体与DCF芳环之间的疏水相互作用。阐明有机污染物与1:1黏土矿物之间的分子间相互作用,对于开发这些资源丰富且成本低廉的材料在废水处理中的应用至关重要。关键词:氯芬酸修饰、表征、双氯芬酸吸附、相互作用、机理披露声明作者未报告潜在利益冲突。
{"title":"Mechanistic understanding of the enhanced adsorption of diclofenac on a heat-treated and acid-leached halloysite","authors":"Choulia Latifa Halloui, Mounir Khelifa, Samira Ziane, Kheira Marouf-Khelifa, Amine Khelifa","doi":"10.1080/03067319.2023.2270425","DOIUrl":"https://doi.org/10.1080/03067319.2023.2270425","url":null,"abstract":"ABSTRACTDiclofenac (DCF), a common nonsteroidal anti-inflammatory drug, is frequently detected in aquatic environments, causing serious threat to aquatic organisms and humans through bioaccumulation, persistence, and toxicity. Using eco-friendly clay-based adsorbents, samples of halloysite (H) processed at 600°C (H600-0N) and then HCl-leached with 3 N concentration (H600-3N) were prepared, characterised by Inductively Coupled Plasma (ICP), N2 adsorption – desorption, and infrared spectroscopy with Fourier transform (FTIR), and used in DCF adsorption. H600-3N exhibited a substantial surface area increase from 63 m2 g−1 for H to 434 m2 g−1 due to an elevated SiO₂/Al₂O₃ ratio of 23.83 against 1.72 for H. In this context, H600-3N and H adsorbed 165 mg g−1 and 37.9 mg g−1 of DCF, respectively. The isotherms of H600-xN(x = 0 or 3) were adequately adjusted to the Langmuir-Freundlich model, while the kinetic data were suitably described by the pseudo-second order equation. Through cross-checking the results of characterisation, DCF adsorption and the FTIR investigation between DCF and H600-3N, a mechanism has been suggested that includes two main components: hydrogen bonding between the silanol’s hydrogen atom and the negatively charged carboxylate anion and hydrophobic interactions between the – Si – O – Si – entities and the DCF aromatic rings. The elucidation of intermolecular interactions between organic contaminants and 1:1 clay minerals is essential to develop the application of these abundant and low-cost materials in wastewater treatment.KEYWORDS: Halloysitemodificationcharacterizationdiclofenac adsorptioninteractionsmechanism Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135265648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-24DOI: 10.1080/03067319.2023.2270917
Balram Singh Yadav, Sudip Dasgupta
ABSTRACTIn the present work, nitrate intercalated zinc aluminium layer double hydroxide (ZA-LDH) nanoparticles in the hydrodynamic particle size range between 210 and 530 nm were synthesised using co-precipitation method under reflux condition and nitrogen atmosphere. The pristine ZA-LDH nanoadsorbent was characterised using X-ray diffraction (XRD), Fourier transformation spectroscopy (FTIR), and field emission scanning electron microscopy (FESEM). The results revealed the formation of single-phase ZA-LDH nanopowder with sheet-like morphology. The optimisation of adsorption kinetic parameters with the fixed dose of 10 mg for 50 ml of 0.03 mg/ml MO and AY dye solution was performed using the Box Behnken design model (BBD). The effects of three independent variables such as incubation time, temperature and pH of the suspended ZA-LDH nanoadsorbents in the MO and AY dye solution on the adsorption kinetics were studied. Optimum values for the maximum adsorption capacity were evaluated that included the incubation time of 52.4 min, the temperature of 35.45 ± 0.55°C, and the pH of 5.75 ± 0.75. According to the BBD model, ZA-LDH nanoadsorbent exhibited the maximum adsorption percentage of 99.84% and 99.99% of corresponding MO and AY dye, respectively. The ZA-LDH adsorbent retained up to 72.3% for the MO and 60.43% for the AY dye of regeneration capacity after 5 cycles of regeneration. The adsorption kinetic and isotherm of the MO and AY dyes onto the ZA-LDH nanoadsorbent were well fitted with pseudo second order kinetic model and Langmuir model, respectively. According to Langmuir isotherm, the maximum adsorption capacities of 601.62 mg/g for the MO dye and 462.48 mg/g for the AY dye onto the ZA-LDH were found and those confirmed the monolayer chemisorption mechanism in this case.KEYWORDS: Adsorption kineticsBox Behnken design modelnitrate intercalated ZnAl-LDHresponse surface methodology AcknowledgmentsThe Department of Biotechnology, India [Research grant BT/PR13005/MED/31/294/2015] is duly acknowledged in the manuscript for their financial support.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe work was supported by the The Department of Biotechnology, India [BT/PR13005/MED/31/294/2015].
{"title":"Response surface methodology based modelling and optimisation of anionic dyes adsorption onto nitrate intercalated Zn <sub>2</sub> Al layer double hydroxide adsorbent","authors":"Balram Singh Yadav, Sudip Dasgupta","doi":"10.1080/03067319.2023.2270917","DOIUrl":"https://doi.org/10.1080/03067319.2023.2270917","url":null,"abstract":"ABSTRACTIn the present work, nitrate intercalated zinc aluminium layer double hydroxide (ZA-LDH) nanoparticles in the hydrodynamic particle size range between 210 and 530 nm were synthesised using co-precipitation method under reflux condition and nitrogen atmosphere. The pristine ZA-LDH nanoadsorbent was characterised using X-ray diffraction (XRD), Fourier transformation spectroscopy (FTIR), and field emission scanning electron microscopy (FESEM). The results revealed the formation of single-phase ZA-LDH nanopowder with sheet-like morphology. The optimisation of adsorption kinetic parameters with the fixed dose of 10 mg for 50 ml of 0.03 mg/ml MO and AY dye solution was performed using the Box Behnken design model (BBD). The effects of three independent variables such as incubation time, temperature and pH of the suspended ZA-LDH nanoadsorbents in the MO and AY dye solution on the adsorption kinetics were studied. Optimum values for the maximum adsorption capacity were evaluated that included the incubation time of 52.4 min, the temperature of 35.45 ± 0.55°C, and the pH of 5.75 ± 0.75. According to the BBD model, ZA-LDH nanoadsorbent exhibited the maximum adsorption percentage of 99.84% and 99.99% of corresponding MO and AY dye, respectively. The ZA-LDH adsorbent retained up to 72.3% for the MO and 60.43% for the AY dye of regeneration capacity after 5 cycles of regeneration. The adsorption kinetic and isotherm of the MO and AY dyes onto the ZA-LDH nanoadsorbent were well fitted with pseudo second order kinetic model and Langmuir model, respectively. According to Langmuir isotherm, the maximum adsorption capacities of 601.62 mg/g for the MO dye and 462.48 mg/g for the AY dye onto the ZA-LDH were found and those confirmed the monolayer chemisorption mechanism in this case.KEYWORDS: Adsorption kineticsBox Behnken design modelnitrate intercalated ZnAl-LDHresponse surface methodology AcknowledgmentsThe Department of Biotechnology, India [Research grant BT/PR13005/MED/31/294/2015] is duly acknowledged in the manuscript for their financial support.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe work was supported by the The Department of Biotechnology, India [BT/PR13005/MED/31/294/2015].","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135265955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-24DOI: 10.1080/03067319.2023.2269856
Ban Khalil Ail
ABSTRACTThe presence of mycotoxins in food is a significant concern due to their potential health risks. It is estimated that around 25% of global food production is contaminated with mycotoxins, which can be produced by certain types of fungi that infect crops during different stages of growth. As a result, it is crucial to monitor mycotoxins in food sources and develop effective methods for removal or reduction. One technique commonly used for detecting and separating mycotoxins is immunoaffinity chromatography (IAC). Traditionally, IAC uses antibodies covalently bonded to a solid support material, but this can lead to conformational changes and reduced affinity towards the analytes. To address these limitations, researchers have explored alternative methods for immobilising biomolecules, such as the sol-gel method, which involves encapsulating biomolecules within the pores of a glass matrix. This approach makes it easier to reuse the immunoaffinity columns and reduces the need for bacteriostatic agents, making the process more cost-effective and efficient. The results showed that sol-gel IAS was able to effectively separate these toxins from complex matrices, demonstrating its potential for widespread application in food safety monitoring. Additionally, the ability of sol-gel IAS to remove mycotoxins from environmental samples tested was highlighting its versatility and potential for broader applications beyond food safety. Finally, they demonstrated the compatibility of sol-gel IAS with high-performance liquid chromatography, enabling online coupling of the two techniques for improved efficiency and accuracy. The findings of this study suggest that sol-gel IAC is a promising method for the detection and separation of mycotoxins in various matrices, including food, environmental samples, and other biological fluids. Its advantages over traditional IAC methods make it an attractive option for large-scale analysis and monitoring of mycotoxins in diverse settings.KEYWORDS: Sol-gel immunoaffinity chromatographydeoxynivalenolzearalenonefood and environmental samples Disclosure statementNo potential conflict of interest was reported by the author.
{"title":"Sol-gel immunoaffinity chromatography for isolation of deoxynivalenol and zearalenone from food and environmental samples","authors":"Ban Khalil Ail","doi":"10.1080/03067319.2023.2269856","DOIUrl":"https://doi.org/10.1080/03067319.2023.2269856","url":null,"abstract":"ABSTRACTThe presence of mycotoxins in food is a significant concern due to their potential health risks. It is estimated that around 25% of global food production is contaminated with mycotoxins, which can be produced by certain types of fungi that infect crops during different stages of growth. As a result, it is crucial to monitor mycotoxins in food sources and develop effective methods for removal or reduction. One technique commonly used for detecting and separating mycotoxins is immunoaffinity chromatography (IAC). Traditionally, IAC uses antibodies covalently bonded to a solid support material, but this can lead to conformational changes and reduced affinity towards the analytes. To address these limitations, researchers have explored alternative methods for immobilising biomolecules, such as the sol-gel method, which involves encapsulating biomolecules within the pores of a glass matrix. This approach makes it easier to reuse the immunoaffinity columns and reduces the need for bacteriostatic agents, making the process more cost-effective and efficient. The results showed that sol-gel IAS was able to effectively separate these toxins from complex matrices, demonstrating its potential for widespread application in food safety monitoring. Additionally, the ability of sol-gel IAS to remove mycotoxins from environmental samples tested was highlighting its versatility and potential for broader applications beyond food safety. Finally, they demonstrated the compatibility of sol-gel IAS with high-performance liquid chromatography, enabling online coupling of the two techniques for improved efficiency and accuracy. The findings of this study suggest that sol-gel IAC is a promising method for the detection and separation of mycotoxins in various matrices, including food, environmental samples, and other biological fluids. Its advantages over traditional IAC methods make it an attractive option for large-scale analysis and monitoring of mycotoxins in diverse settings.KEYWORDS: Sol-gel immunoaffinity chromatographydeoxynivalenolzearalenonefood and environmental samples Disclosure statementNo potential conflict of interest was reported by the author.","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135265809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACTThe study was undertaken with the objective of evaluating the different procedures for the extraction of the Novichok class of chemicals from aqueous samples for the verification of Chemical Weapons Convention (CWC). These classes of chemicals are recently added to the scheduled list of CWC, which necessitates the optimisation of analytical protocols for their verification analyses in different environmental samples. Three analytes, namely N-(1-(diethylamino)ethylidene)-P-methylphosphonamidic fluoride (A230), methyl N-(1-(diethylamino)ethylidene)phosphoramidofluoridate (A232) and ethyl N-(1-(diethylamino)ethylidene)phosphoramidofluoridate (A234), were taken as representative chemicals in aqueous samples and extracted with established protocols, such as liquid–liquid extraction (LLE), solid phase extraction (SPE), solid-supported liquid extraction (SLE) and liquid phase microextraction (LPME) techniques. The extraction efficacies were evaluated in terms of the recoveries of analytes as well as the removal of background interferences. Amongst the extraction techniques, SLE offered the least (43.2–66.7%) and LLE and SPE-HLB offered the best recoveries (79.1–92.9%) of the analytes with adequate sample clean-up. LPME techniques produced much better detection limits, going down to 7.6 ng/mL for A234. LPME methods were also found advantageous in terms of high enrichment factors, ease of operation, minimal waste generation and individual safety for handling the toxic chemicals.KEYWORDS: Chemical Weapons Conventionchemical warfare agentsNovichoksliquid–liquid extractionsolid phase extractionliquid-phase microextraction AcknowledgmentThe authors are grateful to Director, DRDE for the support, appreciations and valuable suggestions. The institutional accession number of the manuscript is DRDE-IREC-07-11102022.Disclosure statementNo potential conflict of interest was reported by the authors.
摘要为验证《禁止化学武器公约》(CWC),研究了从水样中提取诺维乔克类化学物质的不同方法。这些类别的化学品最近被添加到《禁止化学武器公约》的附表中,这就需要优化分析方案,以便在不同的环境样品中进行核查分析。以N-(1-(二乙基氨基)乙基乙烯)- p -甲基氟化磷酰胺(A230)、N-(1-(二乙基氨基)乙基乙基)氟化磷酰胺(A232)和N-(1-(二乙基氨基)乙基)氟化磷酰胺(A234)三种分析物作为水相样品的代表性化学物,采用建立的液-液萃取(LLE)、固相萃取(SPE)、固支液萃取(SLE)和液相微萃取(LPME)技术进行提取。从分析物的回收率和去除背景干扰的角度对提取效果进行了评价。在这些提取技术中,SLE的回收率最低(43.2 ~ 66.7%),而LLE和SPE-HLB的回收率最高(79.1 ~ 92.9%)。LPME技术产生了更好的检测限,A234的检测限降至7.6 ng/mL。在处理有毒化学品方面,还发现LPME方法具有富集系数高、易于操作、废物产生最少和个人安全等优点。关键词:化学武器常规化学武器诺维奇液-液萃取固相萃取液相微萃取感谢中国科学技术研究院院长对本文的支持、赞赏和宝贵建议。论文机构检索号:DRDE-IREC-07-11102022。披露声明作者未报告潜在的利益冲突。
{"title":"Extraction of Novichoks from aqueous samples for verification analysis of Chemical Weapons Convention","authors":"Gyanesh Mishra, Pranav Gupta, Rohit Shrivas, Ajay Purohit, Ajeet Kumar, Raghavendra Goud, Vijay Tak, Deepak Pardasani","doi":"10.1080/03067319.2023.2269853","DOIUrl":"https://doi.org/10.1080/03067319.2023.2269853","url":null,"abstract":"ABSTRACTThe study was undertaken with the objective of evaluating the different procedures for the extraction of the Novichok class of chemicals from aqueous samples for the verification of Chemical Weapons Convention (CWC). These classes of chemicals are recently added to the scheduled list of CWC, which necessitates the optimisation of analytical protocols for their verification analyses in different environmental samples. Three analytes, namely N-(1-(diethylamino)ethylidene)-P-methylphosphonamidic fluoride (A230), methyl N-(1-(diethylamino)ethylidene)phosphoramidofluoridate (A232) and ethyl N-(1-(diethylamino)ethylidene)phosphoramidofluoridate (A234), were taken as representative chemicals in aqueous samples and extracted with established protocols, such as liquid–liquid extraction (LLE), solid phase extraction (SPE), solid-supported liquid extraction (SLE) and liquid phase microextraction (LPME) techniques. The extraction efficacies were evaluated in terms of the recoveries of analytes as well as the removal of background interferences. Amongst the extraction techniques, SLE offered the least (43.2–66.7%) and LLE and SPE-HLB offered the best recoveries (79.1–92.9%) of the analytes with adequate sample clean-up. LPME techniques produced much better detection limits, going down to 7.6 ng/mL for A234. LPME methods were also found advantageous in terms of high enrichment factors, ease of operation, minimal waste generation and individual safety for handling the toxic chemicals.KEYWORDS: Chemical Weapons Conventionchemical warfare agentsNovichoksliquid–liquid extractionsolid phase extractionliquid-phase microextraction AcknowledgmentThe authors are grateful to Director, DRDE for the support, appreciations and valuable suggestions. The institutional accession number of the manuscript is DRDE-IREC-07-11102022.Disclosure statementNo potential conflict of interest was reported by the authors.","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"340 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135366727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-23DOI: 10.1080/03067319.2023.2270911
Kadriye Taşpinar, Özgür Ateş, Gülser Yalçin, Fatih Kizilaslan, Melis Özge Pinar, Serdar Toprak, Didem Özen, Volkan Alveroğlu, Mahmut Bayram, Hasan Çakilli, Abdullah Altay, Ramazan Yavuz, İ̇smail Dİnek
ABSTRACTHeavy metals accumulate mostly in soil in nature, and heavy metal pollution is becoming a serious concern. This study aimed to determine the pollution level and possible sources of heavy metals in the agricultural areas in the Emet district of Kütahya, where a significant boron mine is located worldwide. 64 soil samples were taken from Emet district of Kütahya, Türkiye in 2016, and Cr, Co, Fe, Ni, Cu, Zn and Pb analysed. Heavy metal pollution was determined using the Enrichment Factor (Ef), Geoaccumulation Index (Igeo), Contamination Factor (Cf), and Ecological Risk Factor (Er), Pollution Load Index (PLI), and Potential Ecological Risk Index (RI). According to the pollution index Ef, the study area is moderately enriched in terms of Pb (4.18) and Zn (2.17), while in terms of Cf, the study area is moderately polluted in terms of Pb (2.13) and Zn (1.02). Moreover, the PLI (2.67) index shows that soils are under multiple heavy metal pollution. According to Pearson correlation analysis and principal component analysis, the source of Pb and Zn in the study area is anthropogenic. However, no heavy metal pollution caused by boron mine was found in the study area.KEYWORDS: Soil contaminationpollution indicesmultivariate analysisKütahya province AcknowledgmentsI would like to thank the anonymous reviewers and the journal administrators for their guidance in registering the article.Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementData will be made available at reasonable request.Author contributionAll authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by Fatih KIZILASLAN, Melis Özge PINAR, Serdar TOPRAK, Didem ÖZEN, Volkan ALVEROĞLU, Mahmut BAYRAM, Hasan ÇAKILLI, Abdullah ALTAY, Ramazan YAVUZ, İsmail DİNEK. The first draft of the manuscript was written by Özgür ATEŞ, Kadriye TAŞPINAR, Gülser YALÇIN, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.Additional informationFundingThis study was supported by the General Directorate of Agricultural Research And Policies [grant numbers: TAGEM/TSKAD/12/A13/P0701-08].
{"title":"Soil contamination, pollution indices, and ecological risk in agricultural areas of important mining region of Türkiye","authors":"Kadriye Taşpinar, Özgür Ateş, Gülser Yalçin, Fatih Kizilaslan, Melis Özge Pinar, Serdar Toprak, Didem Özen, Volkan Alveroğlu, Mahmut Bayram, Hasan Çakilli, Abdullah Altay, Ramazan Yavuz, İ̇smail Dİnek","doi":"10.1080/03067319.2023.2270911","DOIUrl":"https://doi.org/10.1080/03067319.2023.2270911","url":null,"abstract":"ABSTRACTHeavy metals accumulate mostly in soil in nature, and heavy metal pollution is becoming a serious concern. This study aimed to determine the pollution level and possible sources of heavy metals in the agricultural areas in the Emet district of Kütahya, where a significant boron mine is located worldwide. 64 soil samples were taken from Emet district of Kütahya, Türkiye in 2016, and Cr, Co, Fe, Ni, Cu, Zn and Pb analysed. Heavy metal pollution was determined using the Enrichment Factor (Ef), Geoaccumulation Index (Igeo), Contamination Factor (Cf), and Ecological Risk Factor (Er), Pollution Load Index (PLI), and Potential Ecological Risk Index (RI). According to the pollution index Ef, the study area is moderately enriched in terms of Pb (4.18) and Zn (2.17), while in terms of Cf, the study area is moderately polluted in terms of Pb (2.13) and Zn (1.02). Moreover, the PLI (2.67) index shows that soils are under multiple heavy metal pollution. According to Pearson correlation analysis and principal component analysis, the source of Pb and Zn in the study area is anthropogenic. However, no heavy metal pollution caused by boron mine was found in the study area.KEYWORDS: Soil contaminationpollution indicesmultivariate analysisKütahya province AcknowledgmentsI would like to thank the anonymous reviewers and the journal administrators for their guidance in registering the article.Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementData will be made available at reasonable request.Author contributionAll authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by Fatih KIZILASLAN, Melis Özge PINAR, Serdar TOPRAK, Didem ÖZEN, Volkan ALVEROĞLU, Mahmut BAYRAM, Hasan ÇAKILLI, Abdullah ALTAY, Ramazan YAVUZ, İsmail DİNEK. The first draft of the manuscript was written by Özgür ATEŞ, Kadriye TAŞPINAR, Gülser YALÇIN, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.Additional informationFundingThis study was supported by the General Directorate of Agricultural Research And Policies [grant numbers: TAGEM/TSKAD/12/A13/P0701-08].","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"PAMI-7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135412779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-23DOI: 10.1080/03067319.2023.2264787
Davis Varghese, Joe Raja Ruban Michael, Joselene Suzan Jennifer Patrick, AnnieCanisius Dominic, Albin John P. Paul Winston, Muthupandi Sankar, Madhavan Joseph, Santhanaraj Daniel, Victor Antony Raj Moses
ABSTRACTTetracycline (TC), a common antibiotic used to study bacterial illnesses in living organisms, is also exceedingly dangerous to the aquatic environment. Numerous traditional techniques are applied to remove the TC antibiotics from the water solution. However, these procedures have not helped to get rid of TC antibiotics. So, in this work, photocatalytic TC degradation has been considered. Hydrothermal synthesis was used to create the CoFe2O4/MWCNTs nano-composite, and various techniques were used to characterise it. The characterisation experiments revealed that multi-walled carbon nanotubes (MWCNTs) are successfully incorporated into cobalt ferrite spinel (CoFe2O4) nanoparticles and this limits the rate at which charge carriers recombine after combining with MWCNTs. The effectiveness of the catalyst was then evaluated in a batch reactor using the weight percentage variation of the nano-composite, specifically TC 0.5, TC 01, TC 02, TC 03, and TC 04, with constant pH 7, with TC concentration of 0.05 g/L and nano-composite dosage of 0.6 g/L for 120 min under 120 W/m2 of visible light. The same operational settings were used to study the TC degradation using CoFe2O4 and MWCNTs as individual pure materials. According to the findings, using CoFe2O4/MWCNTs with a weight percentage ratio of 1:4 (TC 04) increased the photocatalytic degradation efficiency to 90.00% compared to pure materials. After being utilised three times in a row, the photocatalysts were as-produced, and it was discovered that there was an approximate 2.7% decrease in removal efficiency. As a result of its comparatively straightforward synthesis, high stability, and high potential for recycling, CoFe2O4/MWCNTs nano-composite, specifically, TC 04, demonstrated a respectable efficiency in the TC degradation. Therefore, this material will make it possible to eliminate and degrade pharmaceutical organic contaminants.KEYWORDS: CoFe2O4/MWCNTsnanocompositetetracycline degradationvisible light kineticsdegradation mechanism AcknowledgmentsThe authors acknowledge Centennial Physics Ph.D. Instrumentation Centre, Department of Physics, Loyola College, Chennai-600 034.Disclosure statementNo potential conflict of interest was reported by the author(s).Supplementary dataSupplemental data for this article can be accessed online at https://doi.org/10.1080/03067319.2023.2264787.
{"title":"Efficient visible-light-driven photocatalytic degradation of tetracycline by rod-like CoFe <sub>2</sub> O <sub>4</sub> /MWCNTs nanocomposite as a recyclable photocatalyst: a comprehensive study","authors":"Davis Varghese, Joe Raja Ruban Michael, Joselene Suzan Jennifer Patrick, AnnieCanisius Dominic, Albin John P. Paul Winston, Muthupandi Sankar, Madhavan Joseph, Santhanaraj Daniel, Victor Antony Raj Moses","doi":"10.1080/03067319.2023.2264787","DOIUrl":"https://doi.org/10.1080/03067319.2023.2264787","url":null,"abstract":"ABSTRACTTetracycline (TC), a common antibiotic used to study bacterial illnesses in living organisms, is also exceedingly dangerous to the aquatic environment. Numerous traditional techniques are applied to remove the TC antibiotics from the water solution. However, these procedures have not helped to get rid of TC antibiotics. So, in this work, photocatalytic TC degradation has been considered. Hydrothermal synthesis was used to create the CoFe2O4/MWCNTs nano-composite, and various techniques were used to characterise it. The characterisation experiments revealed that multi-walled carbon nanotubes (MWCNTs) are successfully incorporated into cobalt ferrite spinel (CoFe2O4) nanoparticles and this limits the rate at which charge carriers recombine after combining with MWCNTs. The effectiveness of the catalyst was then evaluated in a batch reactor using the weight percentage variation of the nano-composite, specifically TC 0.5, TC 01, TC 02, TC 03, and TC 04, with constant pH 7, with TC concentration of 0.05 g/L and nano-composite dosage of 0.6 g/L for 120 min under 120 W/m2 of visible light. The same operational settings were used to study the TC degradation using CoFe2O4 and MWCNTs as individual pure materials. According to the findings, using CoFe2O4/MWCNTs with a weight percentage ratio of 1:4 (TC 04) increased the photocatalytic degradation efficiency to 90.00% compared to pure materials. After being utilised three times in a row, the photocatalysts were as-produced, and it was discovered that there was an approximate 2.7% decrease in removal efficiency. As a result of its comparatively straightforward synthesis, high stability, and high potential for recycling, CoFe2O4/MWCNTs nano-composite, specifically, TC 04, demonstrated a respectable efficiency in the TC degradation. Therefore, this material will make it possible to eliminate and degrade pharmaceutical organic contaminants.KEYWORDS: CoFe2O4/MWCNTsnanocompositetetracycline degradationvisible light kineticsdegradation mechanism AcknowledgmentsThe authors acknowledge Centennial Physics Ph.D. Instrumentation Centre, Department of Physics, Loyola College, Chennai-600 034.Disclosure statementNo potential conflict of interest was reported by the author(s).Supplementary dataSupplemental data for this article can be accessed online at https://doi.org/10.1080/03067319.2023.2264787.","PeriodicalId":13973,"journal":{"name":"International Journal of Environmental Analytical Chemistry","volume":"15 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135412943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}