| 氢化物-原子吸收法测定鱼组织中汞与硒的条件优化 |
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| 引用本文： | 李杰.氢化物-原子吸收法测定鱼组织中汞与硒的条件优化[J].安徽农业科学,2007,35(7):2030-2031. |
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| 作者姓名： | 李杰 |
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| 作者单位： | 西南大学化学化工学院,重庆,400715 |
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| 摘 要： | 用氢化物-原子吸收法测定了鱼组织中汞和硒的含量,优化了测定条件,并对汞和硒之间的相关性进行了研究.结果发现,消解液的用量、消解温度及时间、载流浓度和载气流量对鱼样中汞和硒的测定都有影响.硒的消解液最好选用10 ml;汞的硫酸用量选用2 ml;汞的消解在80 ℃效果最佳,在1～3 h间峰高无明显差别;1%HCl溶液作载液的汞吸光度最高,载气流量选用150 ml/min为宜.结果还表明,在汞含量较低的情况下,鱼组织中汞与硒的摩尔比值为0.40～0.72,且其随汞含量的增加而增加.
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| 关 键 词： | 汞 硒 氢化物-原子吸收法 条件优化 |
| 文章编号： | 0517-6611（2007）07-02030-02 |
| 修稿时间： | 2006-11-18 |
Optimization of Conditions for Mercury and Selenium Determination in Fish Tissues by Hydride-Atomic Absorption Spectrometry |
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| LI Jie.Optimization of Conditions for Mercury and Selenium Determination in Fish Tissues by Hydride-Atomic Absorption Spectrometry[J].Journal of Anhui Agricultural Sciences,2007,35(7):2030-2031. |
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| Authors: | LI Jie |
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| Institution: | College of Chemistry and Chemical Engineering, Southwest University, Chongqing-400715 |
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| Abstract: | The contents of mercury and selenium in the tissues of fishes were determined by hydride-atomic absorption spectrometry.The conditions for mercury and selenium determination were optimized and the correlation of two the determined elements was studied.The results show that the mount of digested solution,digestion temperature and time,the contents of current-carrying and the mount of carrying gas have some effects on mercury and selenium determination.It is founded that it is best to use 100?ml digested solution of selenium and 2?ml sulphate dose of mercury.The mercury digestion can get optimum effect at 80℃ and its peak height has no obvious difference in 1h to 3 h.1%HCl solution as current-carrying solution can get highest light absorption of mercury.The carrying gas mount of 150?ml/min is better to use.The results also show that the molar ratio of Hg/Se is form 0.4 to 0.72 and increases with the increasing of Hg content at the low Hg level. |
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| Keywords: | Mercury Selenium Hydride-atomic absorption spectrometry Conditions optimization |
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