کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9743367 | 1491188 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chemiluminescent determination of humic substances based on the oxidation by peroxymonosulfate
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Chemiluminescent determination of humic substances based on the oxidation by peroxymonosulfate Chemiluminescent determination of humic substances based on the oxidation by peroxymonosulfate](/preview/png/9743367.png)
چکیده انگلیسی
The intensity of emission radiation produced by humic (HA) and fulvic acids (FA) in the presence of SO52â in basic medium was used to determine HA and FA in the range of 0.5-20.0 mg lâ1. The detection limit was 0.24 mg lâ1. A comparative study was carried out using H2O2 in the presence of CH2O as oxidizing agent. Humic substances (HS) from several soil sources, different extraction and purifying procedures led to different calibration sensitivities and selectivity. Cations and anions such as Cu(II), Cr(III), Ca(II), Clâ, EDTA2â, NO3â, PO43â and CO32â, did not interfere with the determination of HA. Although it was not possible to confirm the accuracy of the chemiluminescent method, low concentrations of HS in natural waters can be detected.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 552, Issues 1â2, 3 November 2005, Pages 141-146
Journal: Analytica Chimica Acta - Volume 552, Issues 1â2, 3 November 2005, Pages 141-146
نویسندگان
Giselle Baratti Magdaleno, Nina Coichev,