کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1166065 1491096 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determination of organophosphorus pesticides in ecological textiles by solid-phase microextraction with a siloxane-modified polyurethane acrylic resin fiber
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Determination of organophosphorus pesticides in ecological textiles by solid-phase microextraction with a siloxane-modified polyurethane acrylic resin fiber
چکیده انگلیسی

A novel solid-phase microextraction (SPME) fiber coating was prepared with siloxane-modified polyurethane acrylic resin by photo-cured technology. The ratio of two monomers was investigated to obtain good microphase separation structure and better extraction performance. The self-made fiber was then applied to organophosphorus pesticides (OPPs) analysis and several factors, such as extraction/desorption time, extraction temperature, salinity, and pH, were studied. The optimized conditions were: 15 min extraction at 25 °C, 5% Na2SO4 content, pH 7.0 and 4 min desorption in GC inlet. The self-made fiber coating exhibited better extraction efficiency for OPPs, compared with three commercial fiber coatings. Under the optimized conditions, the detection limits of 11 OPPs were from 0.03 μg L−1 to 0.5 μg L−1. Good recoveries and repeatabilities were obtained when the method was used to determine OPPs in ecological textile.

Figure optionsDownload as PowerPoint slideHighlights
► A PUSA/PETA SPME fiber coating was prepared by photo-cured technology.
► The ratio of two monomers was optimized for better extraction performance.
► The fiber showed very good performance for OPPs analysis in textiles.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 736, 29 July 2012, Pages 62–68
نویسندگان
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