| 高效液相色谱-原子荧光联用测定天然水中烷基汞 |
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| 引用本文： | 赵云芝,钱蜀,王俊伟,李海霞,万旭.高效液相色谱-原子荧光联用测定天然水中烷基汞[J].中国环境监测,2011,27(3):17-19,23. |
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| 作者姓名： | 赵云芝 钱蜀 王俊伟 李海霞 万旭 |
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| 作者单位： | 四川省环境监测中心站,四川成都,610041 |
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| 摘 要： | 应用在线紫外光照射-高效液相色谱分离-冷原子蒸发/氢化物发生-原子荧光光谱法(HPLC-UV-CV/HG-AFS)测定天然水中烷基汞,实验比较两种前处理方法-巯基棉富集和液液萃取,优化分析条件,建立一种简便、选择性好、高灵敏度分析天然水中烷基汞的方法.取1L水样时,甲基汞和乙基汞的检出限(3S/N)分别为0.3和0.6...
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| 关 键 词： | 巯基棉富集和液液萃取 HPLC-UV-CV/HG-AFS 烷基汞 天然水 |
| 收稿时间： | 3/3/2010 12:00:00 AM |
| 修稿时间： | 6/9/2010 12:00:00 AM |
Determination of Alkylmercury in Natural Water by High Performance Liquid Chromatography Coupled with Atomic Fluorescence Detection |
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| ZHAO Yun-zhi.Determination of Alkylmercury in Natural Water by High Performance Liquid Chromatography Coupled with Atomic Fluorescence Detection[J].Environmental Monitoring in China,2011,27(3):17-19,23. |
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| Authors: | ZHAO Yun-zhi |
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| Institution: | Sichuan Province Environmental Monitoring Centre, Chengdu 610041, China;Sichuan Province Environmental Monitoring Centre, Chengdu 610041, China;Sichuan Province Environmental Monitoring Centre, Chengdu 610041, China;Sichuan Province Environmental Monitoring Centre, Chengdu 610041, China;Sichuan Province Environmental Monitoring Centre, Chengdu 610041, China |
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| Abstract: | The concentration of alkylmercury in natural water was determined by high performance liquid chromatography with on-line UV irradiation, generation of hydrides and cold vapor and atomic fluorescence detection(HPLC-UV-CV/HG-AFS). A comparison was made between two pretreatment methods-preconcentration by sulphydryl cotton fibre and liquid-liquid extraction. A simple, high selectivity and sensitive method was proposed to determine hence alkylmercury in natural water through the optimum of analytical condition. The detection limit(3S/N) for methylmercury was 0.3 and 0.6ng/L for ethylmercury in 1L water. Precision was tested by analyzing two different concentration of standard samples for 6 determinations, the relative standard deviation (RSD) of methylmercury and ethylmercury found was in the range of 2.8%~4.6%. |
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| Keywords: | Preconcentration by sulphydryl cotton fibre and liquid-liquid extraction HPLC-UV-CV/HG-AFS Alkylmercury Natural water |
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