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| 吖啶红与铬(Ⅵ)的高灵敏度荧光反应及应用 | |
| 引用本文： | 叶存玲,王新明,樊静,冯素玲.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(7):1294-1297. |
| 作者姓名： | 叶存玲 王新明 樊静 冯素玲 |
| 作者单位： | 1. 中国科学院广州地球化学研究所有机地球国家重点实验室,广东,广州,510640;河南师范大学化学与环境科学学院,河南省环境污染控制重点实验室,河南,新乡,453007 2. 中国科学院广州地球化学研究所有机地球国家重点实验室,广东,广州,510640 3. 河南师范大学化学与环境科学学院,河南省环境污染控制重点实验室,河南,新乡,453007 |
| 基金项目： | 国家自然科学基金 , 河南省自然科学基金 |
| 摘 要： | 研究了在硫酸介质中,铬(Ⅵ)氧化吖啶红荧光增强反应的最佳实验条件,建立了测定痕量铬(Ⅵ)的新的高灵敏度荧光分析法.该方法的检出限为0.6μg·L-1,线性范围为2.0～32μg·L-1,对含量为4.0和28μg·L-1的Cr(Ⅵ)标准溶液进行11次平行测定,其相对标准偏差分别为2.0%和1.0%.该法用于电镀液、废铬酸洗液及合金钢中痕量铬(Ⅵ)的测定,与标准样品和二苯碳酰二肼分光光度法进行了对照,获得了满意结果. |
| 关 键 词： | 铬(Ⅵ) 吖啶红 荧光法 |
| 文章编号： | 1000-0593（2006）07-1294-04 |
| 收稿时间： | 2005-05-08 |
| 修稿时间： | 2005-09-23 |
Highly Sensitive Fluorescent Reaction of Acridine Red with Chromium (Ⅵ) and Its Application |
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| YE Cun-ling,WANG Xin-ming,FAN Jing,FENG Su-ling.Highly Sensitive Fluorescent Reaction of Acridine Red with Chromium (Ⅵ) and Its Application[J].Spectroscopy and Spectral Analysis,2006,26(7):1294-1297. | |
| Authors: | YE Cun-ling WANG Xin-ming FAN Jing FENG Su-ling |
| Institution: | State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, 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 microg x L(-1), and the linear range of the determination is 2.0-32 microg x 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. |
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