کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1168854 1491169 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Faster and simpler determination of chlorophenols in water by fiber introduction mass spectrometry
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Faster and simpler determination of chlorophenols in water by fiber introduction mass spectrometry
چکیده انگلیسی

Solid phase microextraction (SPME) of chlorophenols [2-chlorophenol (2CP), 2,4-dichlorophenol (24CP), 4-chloro-3-methylphenol (43CP), 2,4,6-tri-chlorophenol (246CP) and pentachlorophenol (PCP)] followed by direct mass spectrometric analysis has been performed by fiber introduction mass spectrometry (FIMS). Two SPME fibers (65 μm PDMS/DVB and 85 μm PA fibers) were tested, and FIMS was performed via selective ion monitoring (SIM). The extractions were evaluated at 10% ionic strength and pH 1. Best extraction times were determined for both fibers. Limits of detection (LOD) and limits of quantification (LOQ) for both fibers were in the low μg L−1 range. Coefficients of correlation for the analytical curves showed linear responses and mineral water and river water samples spiked with 50 μg L−1 presented high recoveries. FIMS, as compared to current EPA methods, is demonstrated to allow faster and simpler (elimination of pre-separation or derivatization steps) analysis of chlorophenols in water with the required sensitivity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 620, Issues 1–2, 14 July 2008, Pages 97–102
نویسندگان
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