کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5399787 | 1505906 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Flow injection-chemiluminescence determination of ascorbic acid based on luminol-ferricyanide-gold nanoparticles system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A novel flow-injection chemiluminescence (CL) method for the determination of ascorbic acid (AA) is proposed, based upon its enhancing effect on the CL reaction of luminol with ferricyanide catalyzed by gold nanoparticles in alkaline solution. Different sizes gold nanoparticles exhibited different catalyzing effect towards luminol CL and 38 nm gold nanoparticles exhibited the best enhancing effect. Under the optimal experimental conditions, a linear relationship was obtained between the CL intensity and the concentration of ascorbic acid in the range of 1.0Ã10â10-1.0Ã10â6 mol Lâ1. The detection limit was 2.0Ã10-11 mol â1 and the relative standard deviation for 1.0Ã10â6 mol Lâ1 ascorbic acid was 0.71% (n=10). This method has been successfully applied in the determination of ascorbic acid in several real samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 154, October 2014, Pages 350-355
Journal: Journal of Luminescence - Volume 154, October 2014, Pages 350-355
نویسندگان
Yong Ping Dong, Ting Ting Gao, Xiang Feng Chu, Jun Chen, Cheng Ming Wang,