کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7613808 | 1493598 | 2014 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Application of ultra-high pressure liquid chromatography linear ion-trap orbitrap to qualitative and quantitative assessment of pesticide residues
ترجمه فارسی عنوان
استفاده از اوربیتو یون تله خطی کروماتوگرافی مایع فوق با فشار بالا به ارزیابی کیفی و کمی از باقی مانده های آفت کش
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
The analysis of pesticides residues using a last generation high resolution and high mass accuracy hybrid linear ion trap-Orbitrap mass spectrometer (LTQ-Orbitrap-MS) was explored. Pesticides were extracted from fruits, fish, bees and sediments by QuEChERS and from water by solid-phase with Oasis HLB cartridges. Ultra-high pressure liquid chromatography (UHPLC)-LTQ-Orbitrap mass spectrometer acquired full scan MS data for quantification, and data dependent (dd) MS2 and MS3 product ion spectra for identification and/or confirmation. The regression coefficients (r2) for the calibration curves (two order of magnitude up to the lowest calibration level) in the study were â¥0.99. The LODs for 54 validated compounds were â¤2 ng mLâ1 (analytical standards). The relative standard deviation (RSD), which was used to estimate precision, was always lower than 22%. The recovery of extraction and matrix effects ranged from 58 to 120% and from â92 to 52%, respectively. Mass accuracy was always â¤4 ppm, corresponding to a maximum mass error of 1.6 millimass units (mmu). This procedure was then successfully applied to pesticide residues in a set of the above-mentioned food and environmental samples. In addition to target analytes, this method enables the simultaneous detection/identification of non-target pesticides, pharmaceuticals, drugs of abuse, mycotoxins, and their metabolites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1328, 7 February 2014, Pages 66-79
Journal: Journal of Chromatography A - Volume 1328, 7 February 2014, Pages 66-79
نویسندگان
M. Farré, Y. Picó, D. Barceló,