Development of a Green Water-Induced Restricted Access Supramolecular Solvent Microextraction Method for Highly Improved Determination of Pesticides with a Wide Range of Polarity in Water Samples and Cereal Flours
{"title":"Development of a Green Water-Induced Restricted Access Supramolecular Solvent Microextraction Method for Highly Improved Determination of Pesticides with a Wide Range of Polarity in Water Samples and Cereal Flours","authors":"César Ricardo Teixeira Tarley, Luciane Effting, Ismael Rodrigues Amador, Maikon Thiago do Nascimento","doi":"10.1007/s10337-024-04330-2","DOIUrl":null,"url":null,"abstract":"<div><p>A novel green microextraction supramolecular (SUPRA)-based method for simultaneous preconcentration of seven pesticides, acetamiprid, azoxystrobin, bifenthrin, carbendazim, chlorpyrifos, imidacloprid, and tebuconazole, in water samples and cereal flours with further determination by HPLC-DAD was developed. The method uses 113 µL of 1-decanol as amphiphilic extractor and 500 µL of tetrahydrofuran as disperser solvent. To perform the method optimization, a 2<sup>5</sup> factorial design and Doehlert design combined with Derringer–Suich desirability function and response surface methodology were used. The microextraction of the pesticides was carried out at pH 6.3 in the presence of 5% NaCl (w/v), low vortex-assisted extraction time (30 s) and it was provided high preconcentration factors (3.6–266.1), and low LOQs (8.98–29.92 µg L<sup>−1</sup>). The intra-day (<i>n</i> = 10) and inter-day (<i>n</i> = 10) precision assessed as the percentage of relative standard deviation (%RSD) for concentrations of 50.0 and 200.0 µg L<sup>−1</sup> varied from 1.7 to 4.1%. The method was successfully applied to determine pesticides in river and lake water samples using external calibration curves. Considering the property of restricted access materials of SUPRAs, the microextraction method was also applied to the direct treatment of solid samples of wheat, oat, and rice flours. High recovery values in the range of 80–112% were obtained, thereby proving the absence of possible interference from matrix components.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":518,"journal":{"name":"Chromatographia","volume":"87 5","pages":"295 - 308"},"PeriodicalIF":1.2000,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chromatographia","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10337-024-04330-2","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"BIOCHEMICAL RESEARCH METHODS","Score":null,"Total":0}
引用次数: 0
Abstract
A novel green microextraction supramolecular (SUPRA)-based method for simultaneous preconcentration of seven pesticides, acetamiprid, azoxystrobin, bifenthrin, carbendazim, chlorpyrifos, imidacloprid, and tebuconazole, in water samples and cereal flours with further determination by HPLC-DAD was developed. The method uses 113 µL of 1-decanol as amphiphilic extractor and 500 µL of tetrahydrofuran as disperser solvent. To perform the method optimization, a 25 factorial design and Doehlert design combined with Derringer–Suich desirability function and response surface methodology were used. The microextraction of the pesticides was carried out at pH 6.3 in the presence of 5% NaCl (w/v), low vortex-assisted extraction time (30 s) and it was provided high preconcentration factors (3.6–266.1), and low LOQs (8.98–29.92 µg L−1). The intra-day (n = 10) and inter-day (n = 10) precision assessed as the percentage of relative standard deviation (%RSD) for concentrations of 50.0 and 200.0 µg L−1 varied from 1.7 to 4.1%. The method was successfully applied to determine pesticides in river and lake water samples using external calibration curves. Considering the property of restricted access materials of SUPRAs, the microextraction method was also applied to the direct treatment of solid samples of wheat, oat, and rice flours. High recovery values in the range of 80–112% were obtained, thereby proving the absence of possible interference from matrix components.
期刊介绍：
Separation sciences, in all their various forms such as chromatography, field-flow fractionation, and electrophoresis, provide some of the most powerful techniques in analytical chemistry and are applied within a number of important application areas, including archaeology, biotechnology, clinical, environmental, food, medical, petroleum, pharmaceutical, polymer and biopolymer research. Beyond serving analytical purposes, separation techniques are also used for preparative and process-scale applications. The scope and power of separation sciences is significantly extended by combination with spectroscopic detection methods (e.g., laser-based approaches, nuclear-magnetic resonance, Raman, chemiluminescence) and particularly, mass spectrometry, to create hyphenated techniques. In addition to exciting new developments in chromatography, such as ultra high-pressure systems, multidimensional separations, and high-temperature approaches, there have also been great advances in hybrid methods combining chromatography and electro-based separations, especially on the micro- and nanoscale. Integrated biological procedures (e.g., enzymatic, immunological, receptor-based assays) can also be part of the overall analytical process.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
