{"title":"统一生物可及性法(UBM)唾液溶液中的水和食用莴苣及莳萝提取物中铅的分散固相微萃取。","authors":"Şerife Tokalıoğlu, Shukria Shahir, Ebru Tekneci Akgül, Bahire Filiz Şenkal","doi":"10.1007/s12011-023-04001-7","DOIUrl":null,"url":null,"abstract":"<p><p>A new thiosemicarbazide-modified, sulfonamide-based poly (styrene) adsorbent (T-CSPS) was prepared starting from the reaction of chlorosulfonated polystyrene and thiosemicarbazide. It was characterized by SEM-EDX, FT-IR, and zeta potential. The T-CSPS was used as an adsorbent for the first time for the dispersive solid-phase microextraction (d-SPµE) and preconcentration of Pb(II) ions from waters and dill and lettuce extracts in the unified bioaccessibility method (UBM) saliva. Lead was then determined using the FAAS. In the first step of optimization, the solution pH was changed from 2 to 8, and pH 4 with a recovery value of 103% ± 5 was selected. Two milliliters of 2 mol L<sup>-1</sup> HCl was chosen as eluent. Contact times were found to be only 2 min. Effects of coexisting ions and sample volume were tested. Under optimal conditions, the preconcentration factor (PF) and the adsorption capacity were 15 and 40 mg g<sup>-1</sup>. The RSD% was 2.2% and 3.1% for intra-day and inter-day precision, respectively. The LOD and LOQ were found to be 5.1 µg L<sup>-1</sup> and 16.9 µg L<sup>-1</sup>, respectively. The accuracy of the d-SPµE was checked by TMDA-70.2 Lake water and BCR-482 Lichen-certified reference materials and also applying d-SPµE to spiked waters and lettuce and dill extracts in UBM saliva.</p>","PeriodicalId":8917,"journal":{"name":"Biological Trace Element Research","volume":null,"pages":null},"PeriodicalIF":3.4000,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dispersive Solid-phase Microextraction of Lead in Waters and Edible Lettuce and Dill Extracts in the Unified Bioaccessibility Method (UBM) Saliva Solution.\",\"authors\":\"Şerife Tokalıoğlu, Shukria Shahir, Ebru Tekneci Akgül, Bahire Filiz Şenkal\",\"doi\":\"10.1007/s12011-023-04001-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>A new thiosemicarbazide-modified, sulfonamide-based poly (styrene) adsorbent (T-CSPS) was prepared starting from the reaction of chlorosulfonated polystyrene and thiosemicarbazide. It was characterized by SEM-EDX, FT-IR, and zeta potential. The T-CSPS was used as an adsorbent for the first time for the dispersive solid-phase microextraction (d-SPµE) and preconcentration of Pb(II) ions from waters and dill and lettuce extracts in the unified bioaccessibility method (UBM) saliva. Lead was then determined using the FAAS. In the first step of optimization, the solution pH was changed from 2 to 8, and pH 4 with a recovery value of 103% ± 5 was selected. Two milliliters of 2 mol L<sup>-1</sup> HCl was chosen as eluent. Contact times were found to be only 2 min. Effects of coexisting ions and sample volume were tested. Under optimal conditions, the preconcentration factor (PF) and the adsorption capacity were 15 and 40 mg g<sup>-1</sup>. The RSD% was 2.2% and 3.1% for intra-day and inter-day precision, respectively. The LOD and LOQ were found to be 5.1 µg L<sup>-1</sup> and 16.9 µg L<sup>-1</sup>, respectively. The accuracy of the d-SPµE was checked by TMDA-70.2 Lake water and BCR-482 Lichen-certified reference materials and also applying d-SPµE to spiked waters and lettuce and dill extracts in UBM saliva.</p>\",\"PeriodicalId\":8917,\"journal\":{\"name\":\"Biological Trace Element Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.4000,\"publicationDate\":\"2024-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Biological Trace Element Research\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1007/s12011-023-04001-7\",\"RegionNum\":3,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2023/12/20 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q2\",\"JCRName\":\"BIOCHEMISTRY & MOLECULAR BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biological Trace Element Research","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1007/s12011-023-04001-7","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2023/12/20 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
Dispersive Solid-phase Microextraction of Lead in Waters and Edible Lettuce and Dill Extracts in the Unified Bioaccessibility Method (UBM) Saliva Solution.
A new thiosemicarbazide-modified, sulfonamide-based poly (styrene) adsorbent (T-CSPS) was prepared starting from the reaction of chlorosulfonated polystyrene and thiosemicarbazide. It was characterized by SEM-EDX, FT-IR, and zeta potential. The T-CSPS was used as an adsorbent for the first time for the dispersive solid-phase microextraction (d-SPµE) and preconcentration of Pb(II) ions from waters and dill and lettuce extracts in the unified bioaccessibility method (UBM) saliva. Lead was then determined using the FAAS. In the first step of optimization, the solution pH was changed from 2 to 8, and pH 4 with a recovery value of 103% ± 5 was selected. Two milliliters of 2 mol L-1 HCl was chosen as eluent. Contact times were found to be only 2 min. Effects of coexisting ions and sample volume were tested. Under optimal conditions, the preconcentration factor (PF) and the adsorption capacity were 15 and 40 mg g-1. The RSD% was 2.2% and 3.1% for intra-day and inter-day precision, respectively. The LOD and LOQ were found to be 5.1 µg L-1 and 16.9 µg L-1, respectively. The accuracy of the d-SPµE was checked by TMDA-70.2 Lake water and BCR-482 Lichen-certified reference materials and also applying d-SPµE to spiked waters and lettuce and dill extracts in UBM saliva.
期刊介绍:
Biological Trace Element Research provides a much-needed central forum for the emergent, interdisciplinary field of research on the biological, environmental, and biomedical roles of trace elements. Rather than confine itself to biochemistry, the journal emphasizes the integrative aspects of trace metal research in all appropriate fields, publishing human and animal nutritional studies devoted to the fundamental chemistry and biochemistry at issue as well as to the elucidation of the relevant aspects of preventive medicine, epidemiology, clinical chemistry, agriculture, endocrinology, animal science, pharmacology, microbiology, toxicology, virology, marine biology, sensory physiology, developmental biology, and related fields.