| 原子吸收光谱法测定土壤和水系沉积物中的银 |
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| 引用本文： | 王永鑫,李守权.原子吸收光谱法测定土壤和水系沉积物中的银[J].贵州地质,2009,26(1):73-74. |
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| 作者姓名： | 王永鑫 李守权 |
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| 作者单位： | 贵州省地质矿产中心实验室,贵州,贵阳,550002 |
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| 摘 要： | 样品经四酸分解，1％的硝酸提取，2％硫脲定溶。石墨炉原子吸收测定样品中的银，方法检出限0．014ug/g，精密度（RSD，n=6）4％～16％；回收率为96％～104％。方法经国家一级标准物质验证，测定结果与标准值相符。
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| 关 键 词： | 银 硫脲 石墨炉-原子吸收光谱 土壤 水系沉积物 |
Determinations of Silver in Soil and stream Sediment by Graphite Furnace Atomic Absorption Spectrometry in Thiourea Medium |
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| Wang Yong-xin,Li Shou-quan.Determinations of Silver in Soil and stream Sediment by Graphite Furnace Atomic Absorption Spectrometry in Thiourea Medium[J].Guizhou Geology,2009,26(1):73-74. |
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| Authors: | Wang Yong-xin Li Shou-quan |
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| Institution: | Guizhou Central Laboratory of Geology and Mineral Resources;Guiyang 550002;Guizhou;China |
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| Abstract: | The micro-amount of Ag in samples is determined by Graphite furnace atomic absorption spectrometrym,The detection limit of the method for by Ag is 0.0051ng/ml,the RSD(n=6) is 4%~16%.The recovery of the method is 96%~104%.The method has verified by the determination of Ag in the National Standard Reference Materials and the results are in agreement with the certified values. |
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| Keywords: | silver thiourea Graphite furnace atomic absorption spectrometry Soil Stream Sediment |
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