کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7639947 1494851 2018 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Speciation of mercury by hydride generation ultraviolet atomization-atomic fluorescence spectrometry without chromatographic separation
ترجمه فارسی عنوان
تعیین جیوه با تولید هیدرید اسپکترومتری فلورسانس اتمیزاسیون اتم فشرده اشعه ماوراء بنفش بدون جداسازی کروماتوگرافی
کلمات کلیدی
اتمیزه کردن اتمسفر، تجزیه و تحلیل ویژه طیف سنجی فلورسانس اتمی، غیر کروماتوگرافی،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A novel ultraviolet (UV) atomization atomic fluorescence spectrometry (UV-AFS) without chromatographic separation was developed for quantitative speciation analysis of mercury (inorganic mercury (Hg2+) and methylmercury (MeHg+)) in food samples. In the proposed method, with 0.1% (m/v) KBH4 used as a reductant, inorganic mercury was measured by using the non-ultraviolet radiation mode. However, under the ultraviolet atomization, the volatile MeHg+ hydride (MeHgH) generated by KBH4 can be transformed to elemental mercury vapor, and total Hg (MeHg and Hg2+) was detected in this UV atomization mode. Under the optimized experimental conditions, the limits of detection (LODs) were found to be 0.015 and 0.081 mg L−1, for Hg2+ and MeHg+. And the relative standard deviations (RSDs) (n = 11) were 2.4% and 0.4%, respectively. Spiked environmental water samples including seafood, fruits and vegetables were determined and satisfactory recoveries were obtained for MeHg+ and Hg2+ detection.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 143, December 2018, Pages 228-233
نویسندگان
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