Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10560008 | Talanta | 2011 | 5 Pages |
Abstract
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.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Fei Nie, Na Wang, Jianbin Zheng, Juncai Zhang,