| 流动注射在线萃取-火焰原子吸收光谱法测定地质试样中痕量银 |
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| 引用本文： | 汤志勇,金泽祥,陆琴,田凤英.流动注射在线萃取-火焰原子吸收光谱法测定地质试样中痕量银[J].岩矿测试,1993(1):14-16. |
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| 作者姓名： | 汤志勇 金泽祥 陆琴 田凤英 |
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| 作者单位： | 中国地质大学应用化学系，中国地质大学应用化学系，中国地质大学应用化学系，中国地质大学应用化学系 武汉 430074，武汉 430074，武汉 430074，武汉 430074 |
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| 摘 要： | 研究了在线萃取系统流程中最佳参数,提出一个流动注射在线萃取-火焰原子吸收光谱法测定地质试样中痕量Ag的分析方法。检出限为0.54ng/ml,对于含Ag 20ng/ml试样测定10次,精密度(RSD)为1.64％,分析速度可达20～30N/h,经地质标样分析验证结果可靠。
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| 关 键 词： | 银 流动注射在线萃取 火焰原子吸收光谱法 地质试样 |
Determination of Trace Silver in Geological Samples by Flow Injection On-line Extraction-Flame Atomic Absorption Spectrometry |
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| Tang Zhiyong,Jin Zexiang,Lu Qin and Tian Fengying.Determination of Trace Silver in Geological Samples by Flow Injection On-line Extraction-Flame Atomic Absorption Spectrometry[J].Rock and Mineral Analysis,1993(1):14-16. |
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| Authors: | Tang Zhiyong Jin Zexiang Lu Qin and Tian Fengying |
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| Abstract: | The optimum parameters of the flow injection on-line extraction system were investigated. The detection limit and relative standard deviation of the method were 0. 54 ng/ml and 1. 64%(20ng/ml Ag,n= 10)respectively. 20~30 samples aliquots can be analyzed in an hour. The method has been applied to the determination of trace Ag in geological samples with satisfactory results. |
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| Keywords: | Silver flow injection on-line extraction flame atomic absorption spectrometry geo-logical samples |
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