| 流动注射在线离子交换富集-原子荧光光谱法测定环境水样中痕量汞 |
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| 引用本文： | 邱海鸥,陈群丽,汤志勇. 流动注射在线离子交换富集-原子荧光光谱法测定环境水样中痕量汞[J]. 安全与环境工程, 2001, 8(3): 9-11,8 |
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| 作者姓名： | 邱海鸥 陈群丽 汤志勇 |
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| 作者单位： | 中国地质大学材料科学与化学工程学院, |
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| 基金项目： | 地质矿产部九五科技项目(9505601-2) |
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| 摘 要： | 提出了一种流动注射在线离子交换富集一氢化物发生原子荧光光谱法测定水样中总汞的分析方法。设计了双柱并联富集，串联洗脱的在线离子交换流路及操作程序，优化了各项化学条件及流路参数。方法操作简便快速，灵敏度高，干扰少。富集倍数达25倍以上，采样频率为30次／h，回收率达90％－105％。应用于环境水样中痕量汞的测定，获得了满意的结果。
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| 关 键 词： | 流动注射分析 离子交换预富集 原子荧光光谱法 汞 环境水样 树脂 标准曲线 |
| 文章编号： | 1671-1556(2001)-03-0009-11 |
Determination of Trace Mercury in Water by Hydride-generation Atomic Fluorescence Spectrometry Combined with Flow Injection On-line Ion-exchange Preconcentration |
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| Qiu Haiou Chen Qunli Tang Zhiyong. Determination of Trace Mercury in Water by Hydride-generation Atomic Fluorescence Spectrometry Combined with Flow Injection On-line Ion-exchange Preconcentration[J]. Safety and Environmental Engineering, 2001, 8(3): 9-11,8 |
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| Authors: | Qiu Haiou Chen Qunli Tang Zhiyong |
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| Abstract: | A method for the determination of trace mercury in water by flow injection on-line ion-exchange preconcentration-atomic fluorescence spectrometry was developed. In this paper, the manifold of double column system and operating program for on-line ion-exchange are designed. Manifold parameters and chemical conditions are investigated. This method is simple in use and fast in operation. The detection limit and relative standard deviation of the method are 0.005 ng/mL and 3.2% respectively. The recovery of standard solution is 90%-105%. The method has been applied to the determination of trace mercury in water with satisfactory results. |
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| Keywords: | flow injection analysis ion exchange preconcentration atomic fluorescence spectrometry mercury |
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