کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1168729 960603 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ultra trace determination of 31 pesticides in water samples by direct injection–rapid resolution liquid chromatography-electrospray tandem mass spectrometry
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Ultra trace determination of 31 pesticides in water samples by direct injection–rapid resolution liquid chromatography-electrospray tandem mass spectrometry
چکیده انگلیسی

A liquid chromatography-tandem mass spectrometry (LC-MS/MS)-based method for the detection of pesticides in tap and treated wastewater was developed and validated according to the ISO/IEC 17025:1999. Key features of this method include direct injection of 100 μL of sample, an 11 min separation by means of a rapid resolution liquid chromatography system with a 4.6 mm × 50 mm, 1.8 μm particle size reverse phase column and detection by electrospray ionization (ESI) MS–MS. The limits of detection were below 15 ng L−1 and correlation coefficients for the calibration curves in the range of 30–2000 ng L−1 were higher than 0.99. Precision was always below 20% and accuracy was confirmed by external evaluation. The main advantages of this method are direct injection of sample without preparative procedures and low limits of detection that fulfill the requirements established by the current European regulations governing pesticide detection.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 624, Issue 1, 22 August 2008, Pages 90–96
نویسندگان
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