کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10560008 | 969700 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An ultrasensitive post chemiluminescence reaction of ammonium in NBS-dichlorofluorescein system and its application
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
A strong post chemiluminescence (PCL) phenomenon was observed when ammonium was injected into the reaction mixture after the finish of CL reaction of N-bromosuccinimide (NBS) and dichlorofluorescein. Based on this, a sensitive flow injection PCL method was established for the determination of ammonium. The possible CL mechanism of the reaction was proposed based on a series of experiments. The PCL intensity responded linearly to the concentration of ammonium in the range 3.0 Ã 10â11-1.0 Ã 10â7 g mLâ1 with a detection limit of 1 Ã 10â11 g mLâ1. The relative standard deviation (R.S.D.) was 1.4% for 1.0 Ã 10â9 g mLâ1 ammonium (n = 11). This method had been applied to the determination of ammonium in samples of mineral water, tap water and river water.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 84, Issue 4, 30 May 2011, Pages 1063-1067
Journal: Talanta - Volume 84, Issue 4, 30 May 2011, Pages 1063-1067
نویسندگان
Fei Nie, Na Wang, Jianbin Zheng, Juncai Zhang,