کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10140803 1646046 2019 24 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization and establishment of QuEChERS based method for determination of propoxycarbazone and its metabolite in food commodities by liquid chromatography coupled to tandem mass spectrometry
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Optimization and establishment of QuEChERS based method for determination of propoxycarbazone and its metabolite in food commodities by liquid chromatography coupled to tandem mass spectrometry
چکیده انگلیسی
This study reports a method for propoxycarbazone pesticide determination including its metabolite in food commodities (lettuce, beetroot, soybean meal and honey). Both compounds were extracted, and samples cleaned using a buffered QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) method based on the AOAC Official Method, followed by ultra high performance liquid chromatography coupled to tandem mass spectrometry (UHPLC-MS/MS). Both matrix-matched calibration curves showed good linearity (R2 = 0.99) within the tested ranges. Method performance was assessed on the basis of recovery and intra/inter-day precision studies at spiked concentrations of 10 (25) and 50 µg/kg (n = 5). Mean recovery rates were between 73 and 110%, while precision studies, assessed by relative standard deviation (RSD), were ≤20%. The limits of quantification (LOQ) were established as 10 or 25 µg/kg, depending on the matrix, which are low enough for monitoring residues at regulated maximum residue levels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 274, 15 February 2019, Pages 429-433
نویسندگان
, , , ,