کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
581377 | 877842 | 2009 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determination of selenium in natural waters by adsorptive differential pulse cathodic stripping voltammetry
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
In this work bovine albumin was used innovatively as a medium for adsorptive accumulation of Se-I2 on thin mercury film electrode. Se-I2 was formed by reaction between Se(IV) and iodide in HCl media. The adsorbed Se-I2 was stripped in 0.05 M HCl by differential pulse cathodic potential scan. The proposed method was successfully applied to analysis of Se(IV) and Se(VI) in natural waters sampled from some lagoons south of Caspian Sea. The optimum reaction conditions and other analytical parameters and influence of cations and anions were studied. The detection limit was 0.37 ng mLâ1. The obtained results were compared with the results of DPCSV after electrochemical preconcentration, HG-AAS and ICP-AES.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 168, Issue 1, 30 August 2009, Pages 542-547
Journal: Journal of Hazardous Materials - Volume 168, Issue 1, 30 August 2009, Pages 542-547
نویسندگان
Mehdi Ashournia, Alireza Aliakbar,