| 微波消解—冷原子荧光光谱法测定植物样品中的汞 |
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| 引用本文： | 陈海杰,于兆水,邢夏,等.微波消解—冷原子荧光光谱法测定植物样品中的汞[J].物探与化探,2014(2):393-395,401. |
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| 作者姓名： | 陈海杰 于兆水 邢夏 等 |
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| 作者单位： | 中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000 |
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| 基金项目： | 中国地质调查局地质大调查项目（1212011120277） |
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| 摘 要： | 为了简化测量植物中汞含量的方法,提高灵敏度及结果的可信度,实验采用微波消解植物样品的办法,使样品经氯化亚锡还原,再用冷原子荧光测定出植物样品中汞的含量。确定了消解样品的方法和微波消解样品的条件,优化了仪器的最佳工作参数。方法检出限0.30×10-9(稀释因子100倍),精密度(n=12)在2.09%~6.05%,加标回收率94.1%~105.5%,方法经生物国家一级标准物质验证方法准确可靠。
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| 关 键 词： | 微波消解 植物样 冷原子荧光 氯化亚锡 |
THE APPLICATION OF THE MICROWAVE DIGESTION-COLD ATOMIC FLUORESCENCE SPECTROSCOPY TO THE DETERMINATION OF Hg IN THE PLANTS |
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| CHEN Hai-jie,YU Zhao-shui,XING Xia,ZHANG Xue-mei,ZHANG Qin.THE APPLICATION OF THE MICROWAVE DIGESTION-COLD ATOMIC FLUORESCENCE SPECTROSCOPY TO THE DETERMINATION OF Hg IN THE PLANTS[J].Geophysical and Geochemical Exploration,2014(2):393-395,401. |
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| Authors: | CHEN Hai-jie YU Zhao-shui XING Xia ZHANG Xue-mei ZHANG Qin |
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| Institution: | ( Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Lang[ang 065000, China) |
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| Abstract: | For the purpose of simplifying the determination of Hg in plants and improving sensitivity and reliability of the result, samples were firstly treated through the micro-wave digestion process and then reduced with the SnCl2 . After that, the element Hg in the samples was detected with the cold atomic fluorescence spectroscopy. The best solution for the samples digestion and the optimal work parame-ters of the test instrument were obtained during the experiment. The detection limit is 0.30＆#215;10-9（dilution factor 100）, RSD （n=12） is between 2.09% and 6.05%, and the recovery for the sample is in the range of 94.1%~105.5%. The method was applied to the determi-nation of Hg in biological national standard reference materials and the results show its accuracy and reliability. |
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| Keywords: | microwave digestion plant sample cold atomic fluorescence spectroscopy stannous chloride |
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