کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1251506 | 970916 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Solid Phase Extraction Chemiluminescence Determination of Methamidaphos on Vegetables
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The determination of the methamidaphos pesticide residue on vegetables with a simple solid phase extract (SPE) flow injection (FI)-chemiluminescence (CL) method is described. The method is based on the enhancing effect of methamidaphos on the CL reaction of luminol with hydrogen peroxide in an alkaline solution. Under the optimal conditions, the CL intensity is linear to the methamidaphos mass concentration in a range of 0.2-13 μg/mL (r = 0.9992). The detection limit(3Ï) is 0.047 μg/mL. The relative standard deviations for the analysis of three samples are 1.8%, 2.5% and 3.7% (n = 5), respectively. The recovery is in a range of 90%-109% by the method. In this work, this method was successfully applied to the determination of the methamidaphos residue on some vegetable samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Research in Chinese Universities - Volume 22, Issue 1, January 2006, Pages 21-24
Journal: Chemical Research in Chinese Universities - Volume 22, Issue 1, January 2006, Pages 21-24
نویسندگان
Xiao-zhou LI, Ting-ting GUAN, Chi ZHOU, Ji-qiu YIN, Yi-hua ZHANG,