کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1208742 965315 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Quantification of fenitrothion and its main metabolites in poplar leaves by isotope dilution gas chromatography–mass spectrometry coupled with solid-phase microextraction
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Quantification of fenitrothion and its main metabolites in poplar leaves by isotope dilution gas chromatography–mass spectrometry coupled with solid-phase microextraction
چکیده انگلیسی

A sensitive and specific method for determining fenitrothion and its main metabolites, 3-methyl-4-nitrophenol and fenitrooxon, in poplar leaves using deuterated isotopes as the internal standard is described. The analytes and the labeled isotopes were extracted from leaves by solid-phase microextraction and subsequently analysed by gas chromatography coupled with mass spectrometry. The method had a chromatographic run time of 17.0 min and good linearity over the range 0.01–10 mg kg−1. The detection limits ranged between 2.5 and 0.6 μg kg−1. The isotopic dilution technique allowed improving significantly the repetitivity even using different fibers with the same coating (RSD < 5.1%). The method was applied successfully to study the persistence of fenitrothion in forestal matrices in a poplar forest after cannon spray application of the insecticide.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1177, Issue 1, 4 January 2008, Pages 170–174
نویسندگان
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