کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7641023 | 1494856 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Miniaturized dielectric barrier discharge-atomic emission spectrometer for pesticide: Sensitive determination of thiram after derivatization with mercurial ion
ترجمه فارسی عنوان
طیف سنج خروجی مانع از اتلاف دی اکسیدکربن مینیاتوری برای آفت کش: تعیین حساس تریام پس از مشتقات با یون جیوه
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A novel method was developed to sensitively determine thiram (which we selected as a representative large molecular organic pesticide) using miniaturized dielectric barrier discharge-atomic emission spectrometry (DBD-AES), based on the determination of free mercurial ion (Hg2+) from Hg labeled thiram complex. The disulfide bond (SS) in thiram was reduced to sulfhydryl (SH) using tris(2-carboxyethyl)phosphine (TCEP), and inorganic Hg2+ was used as the derivatization reagent. It was found that SnCl2 could selectively reduce only free Hg2+ to Hg0 vapor in the presence of Hg2+-labeled thiram complex, which could be separated from sample matrices for sensitive DBD-AES detection. Under the optimized conditions, this method provided high sensitivity for thiram determination, with limits of detection as low as 0.0003 mg kgâ1 and linear dynamic ranges of 0.001-0.01 mg kgâ1. This analytical method performs better than the traditional analytical methods, demonstrating the potential usefulness and versatility of this new Hg-labeled DBD-AES system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 138, May 2018, Pages 457-464
Journal: Microchemical Journal - Volume 138, May 2018, Pages 457-464
نویسندگان
Bingjun Han, Ya Li, Yan He, Daizhu Lv, Lixu Peng, Huamei Yu,