| 天然水体中痕量汞的形态分析方法研究 |
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| 引用本文： | 阎海鱼, 冯新斌, 商立海, 汤顺林, 仇广乐.天然水体中痕量汞的形态分析方法研究[J].分析测试学报,2003,22(5):10-13. |
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| 作者姓名： | 阎海鱼 冯新斌 商立海 汤顺林 仇广乐 |
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| 作者单位： | 1. 中国科学院地球化学研究所,环境地球化学国家重点实验室,贵州,贵阳,550002;中国科学院研究生院,北京,100039
2. 中国科学院地球化学研究所,环境地球化学国家重点实验室,贵州,贵阳,550002 |
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| 基金项目： | 国家自然科学基金资助项目(40173037)，中国科学院海外杰出人才计划资助项目 |
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| 摘 要： | 天然水体中汞的含量仅为ng/L级，不仅难以测出，而且在测定过程中极易受到干扰；利用两次金汞齐的预富集方法与原子荧光法结合的技术，作者建立了天然水体超痕量不同形态汞的准确分析方法；该方法的检出限达到了0．02ng／L，实验平均回收率为101%；该方法也适用于其它低汞含量水样(包括稀释后的污水及化工废水)中汞的形态分析。
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| 关 键 词： | 天然水体 痕量元素 汞 形态分析 环境污染 |
| 文章编号： | 1004-4957(2003)05-0010-04 |
| 修稿时间： | 2002年11月12 |
Speciation Analysis of Ultra Trace Levels of Mercury in Natural Waters |
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| YAN Hai_yu ,FENG Xin_bin ,SHANG Li_hai ,TANG Shun_lin ,QIUGuang_lemistry,Chinese Academy of Sciences,Guiyang,China,.Graduate School of the Chinese Academy Sciences,Beijing,China.Speciation Analysis of Ultra Trace Levels of Mercury in Natural Waters[J].Journal of Instrumental Analysis,2003,22(5):10-13. |
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| Authors: | YAN Hai_yu FENG Xin_bin SHANG Li_hai TANG Shun_lin QIUGuang_lemistry Chinese Academy of Sciences Guiyang China Graduate School of the Chinese Academy Sciences Beijing China |
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| Institution: | YAN Hai_yu 1,2,FENG Xin_bin 1,SHANG Li_hai 1,2,TANG Shun_lin 1,QIUGuang_lemistry,Chinese Academy of Sciences,Guiyang550002,China,2.Graduate School of the Chinese Academy Sciences,Beijing100039,China) |
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| Abstract: | Total mercury concentrations in natural waters are only in the range of ng/L,and interference and contamination make the direct determination of mercury in water samples difficult.In this paper,a method of two-stage amalgamation pre_concentration coupled with atomic fluorescence spectrometry(AFS)is proposed for the determination of ultra trace levels of mercury species in natural waters.Its detection limit is0.02ng/L,and its average recovery rate is101%.This method is also applicable to the speciation analysis of mercury in other types of water samples. |
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| Keywords: | Natural waters Ultra trace level analysis Mercury Speciation analysis |
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