Supercritical Fluid Extraction of Atrazine and Polar Metabolites from Sediments Followed by Confirmation with LC-MS

S. PAPILLOUD; W. HAERDI; S. CHIRON; D. BARCELO

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Supercritical Fluid Extraction of Atrazine and Polar Metabolites from Sediments Followed by Confirmation with LC-MS

机译：超临界流体萃取法从沉积物中提取azine去津和极性代谢物，然后通过LC-MS进行确认

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Atrazine is among the most widely used herbicides in intensive agriculture (corn fields). There is thus great incentive to monitor the concentration of this chemical as well as its degradation products, which have to be included in the balance of total toxicity. The metabolic pathway of atrazine in a freshwater sediment has been investigated in this paper. Atrazine was extracted by a supercritical fluid extraction method. The first step was to select the most efficient polar modifier: a polar mixture containing a strong nucleophilic agent (MeOH-H_2O-Et_3N) was too reactive, and atrazine was degraded into some of its metabolites during the extraction. An optimized nondegrading supercritical fluid extraction enabled the reproducible extraction of atrazine and its metabolites from the sediments, showing also that atrazine was metabolized in its hydroxylated analogue, involving chemical abiotic degradation. Our work reports for the first time the use of SFE followed by LC-MS of the polar atrazine metabolites from an environmental matrix.

机译：阿特拉津是集约农业（玉米田）中使用最广泛的除草剂之一。因此，有很大的动力去监测这种化学物质及其降解产物的浓度，这些化学物质及其降解产物必须包括在总毒性的平衡中。本文研究了at去津在淡水沉积物中的代谢途径。通过超临界流体萃取法萃取去津。第一步是选择最有效的极性改性剂：含有强亲核试剂（MeOH-H_2O-Et_3N）的极性混合物反应性太强，在萃取过程中at去津会降解成其某些代谢物。优化的非降解超临界流体萃取能够从沉积物中可再生地提取at去津及其代谢物，这也表明at去津在其羟基化类似物中被代谢，涉及化学非生物降解。我们的工作首次报告了SFE的使用，然后是来自环境基质的极性at去津代谢物的LC-MS分析。

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来源
《Environmental Science & Technology》 |1996年第6期|p.1822-1826|共5页
作者
S. PAPILLOUD; W. HAERDI; S. CHIRON; D. BARCELO;
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作者单位

Departement de Chimie Analytique, University of Geneva, 30, quai E. Ansermet, 1211 Geneva 4, Switzerland;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类环境化学;
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1. Extraction of Atrazine and Its Metabolites Using Supercritical Fluids and Enhanced-Fluidity Liquids [J] . Michael E. Shows, Susan V. Olesik Journal of Chromatographic Science . 2000,第9期

机译：超临界流体和增强流动性液体萃取阿特拉津及其代谢物
2. Impacts of Extraction Methods in the Rapid Determination of Atrazine Residues in Foods using Supercritical Fluid Chromatography and Enzyme-Linked Immunosorbent Assay: Microwave Solvent vs. Supercritical Fluid Extractions [J] . Mohamed H.El-Saeid, IjeomaKanu, Ebere C.Anyanwu, ScientificWorldJournal . 2005,第3期

机译：利用超临界流体色谱法快速测定萃取方法在快速测定食品中尿嘧啶残留的影响，酶联免疫吸附试验：微波溶剂与超临界流体萃取
3. Supercritical fluid extraction (SFE) of ketamine metabolites from dried urine and on-line quantification by supercritical fluid chromatography and single mass detection (on-line-SFE-SFC-MS) [J] . Hofstetter Robert, Fassauer Georg M., Link Andreas Journal of chromatography, B. Analytical technologies in the biomedical and life sciences . 2018,第期

机译：通过超临界流体色谱法和单块质量检测从干燥尿液和在线定量的氯胺酮代谢物的超临界流体萃取（SFE）（在线-SFE-SFC-MS）
4. EXTRACTION OF NITROFURANTOIN AND TOXIC METABOLITE FROM URINE BY SUPERCRITICAL FLUIDS. QUANTITATION BY HPLC WITH UV DETECTION [C] . Veronica Arancibia, Andrea Madariaga, Rodrigo Segura, 10th International Symposium amp; Exhibit on Supercritical Fluid Chromatography, Extraction, and Processing Aug 19-22, 2001 Myrtle Beach, SC USA . 2001

机译：超临界流体萃取尿中的呋喃妥因和有毒的代谢物。 HPLC紫外检测定量
5. Part I. Evaluation of silver as a reductive amperometric detector electrode for HPLC and FIA. Part II. Evaluation of supercritical fluid extraction (SFE) as a sample preparation technique. Part III. Development and validation of HPLC methods using supercritical fluid extraction and reversed-phase HPLC with electrochemical detection (LCEC). [D] . Schneiderman, Martin Alan. 1990

机译：第一部分：银作为HPLC和FIA的还原型安培检测器电极的评估。第二部分评价超临界流体萃取（SFE）作为样品制备技术。第三部分使用超临界流体萃取和带电化学检测的反相HPLC（LCEC）的HPLC方法的开发和验证。
6. Impacts of Extraction Methods in the Rapid Determination of Atrazine Residues in Foods using Supercritical Fluid Chromatography and Enzyme-Linked Immunosorbent Assay: Microwave Solvent vs. Supercritical Fluid Extractions [O] . Mohamed H. El-Saeid, Ijeoma Kanu, Ebere C. Anyanwu, 2005

机译：萃取方法对超临界流体色谱和酶联免疫吸附法快速测定食品中At去津残留的影响：微波溶剂与超临界流体萃取
7. Impacts of Extraction Methods in the Rapid Determination of Atrazine Residues in Foods using Supercritical Fluid Chromatography and Enzyme- Linked Immunosorbent Assay: Microwave Solvent vs. Supercritical Fluid Extractions [O] . Mohamed H. El-saeid, Ijeoma Kanu, Ebere C. Anyanwu, 2015

机译：超临界流体色谱法和酶联免疫吸附法测定萃取方法对食品中阿特拉津残留量的影响：微波溶剂与超临界流体萃取
8. Method for the Supercritical Fluid Extraction of Soils/Sediments [R] . Lopez-Avila, V., Dodhiwala, N. S. 1990

机译：超临界流体萃取土壤/沉积物的方法

Supercritical Fluid Extraction of Atrazine and Polar Metabolites from Sediments Followed by Confirmation with LC-MS

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