Highly Sensitive Fluorescent Reaction of Acridine Red with Chromium(Ⅵ) and Its Application
YE Cun-ling1, 2, WANG Xin-ming1*, FAN Jing2, FENG Su-ling2
1. State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China 2. College of Chemistry and Environmental Science, Henan Normal University, Henan Key Laboratory for Environmental Pollution Control, Xinxiang 453007, China
Abstract：A simple and highly sensitive fluorimetric method for the determination of Cr(Ⅵ) was developed in the present paper. The method is based on the fluorescence enhancement of acridine red with Cr(Ⅵ) in the sulfuric acid medium. The effects of some experimental conditions on the determination of Cr(Ⅵ) were investigated in detail. The detection limit for Cr(Ⅵ) is 0.6 μg·L-1, and the linear range of the determination is 2.0-32 μg·L-1. The relative standard deviation of 11 replicate measurements is less than 2.0%. The proposed method has been successfully used to determine Cr(Ⅵ) in electroplating solution, waste chromic acid mixture，and alloy steel samples. The results obtained were compared with the certified values of Cr(Ⅵ) in standard samples and those provided by 1,5-diphenylcarbazide method with satisfaction.
叶存玲1, 2,王新明1*,樊静2,冯素玲2 . 吖啶红与铬(Ⅵ)的高灵敏度荧光反应及应用[J]. 光谱学与光谱分析, 2006, 26(07): 1294-1297.
YE Cun-ling1, 2, WANG Xin-ming1*, FAN Jing2, FENG Su-ling2 . Highly Sensitive Fluorescent Reaction of Acridine Red with Chromium(Ⅵ) and Its Application . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(07): 1294-1297.
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