کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5133068 1492051 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Simultaneous determination of 124 pesticide residues in Chinese liquor and liquor-making raw materials (sorghum and rice hull) by rapid Multi-plug Filtration Cleanup and gas chromatography-tandem mass spectrometry
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Simultaneous determination of 124 pesticide residues in Chinese liquor and liquor-making raw materials (sorghum and rice hull) by rapid Multi-plug Filtration Cleanup and gas chromatography-tandem mass spectrometry
چکیده انگلیسی


- The rapid m-PFC syringe was packed with MWCNTs, PSA and C18.
- 124 pesticides in distilled spirit, sorghum and rice hull were determined by GC-MS/MS.
- The m-PFC procedure was demonstrated to be superior to d-SPE method.
- The m-PFC method was optimized to obtain the best results with 3 repetitions.
- The method was successfully applied to monitor pesticide residues in samples.

A multi-residue method was developed for the determination of 124 pesticide residues in Chinese liquor and liquor-making raw materials (sorghum and rice hull) by rapid Multi-plug Filtration Cleanup (m-PFC) and GC-MS/MS detection. Different combination and proportion sets of sorbents were initially optimized for each matrix with a dispersive solid-phase extraction (d-SPE) procedure. Satisfactory linearity was obtained for the 124 pesticides with regression coefficients (R2) greater than 0.9901. Mean recoveries of 121 pesticides were in the range of 71-121% with Relative Standard Deviations (RSDs) lower than 16.8% except cyprodinil, diflufenican and prothioconazole. The Limit of Quantification (LOQs) was in the range of 1.0 × 10−4-5.0 × 10−3 mg kg−1 and the Limit of Detection (LODs) ranged from 3.0 × 10−5 to 1.5 × 10−3 mg kg−1 for the 124 pesticides in the matrices. It is demonstrated the m-PFC procedure is superior to the d-SPE method and it could be used to routinely monitor of pesticide residues in market samples.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 241, 15 February 2018, Pages 258-267
نویسندگان
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