| 流动注射在线共沉淀分离富集HG—AFS测定痕量锗 |
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| 引用本文： | 史建波,董纪珍,谭春华,汤志勇.流动注射在线共沉淀分离富集HG—AFS测定痕量锗[J].理化检验(化学分册),2001,37(8):357-359. |
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| 作者姓名： | 史建波 董纪珍 谭春华 汤志勇 |
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| 作者单位： | 中国地质大学材料科学与化学工程学院 |
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| 摘 要： | 提出了一种流动注射在线共沉淀-氢化物发生-原子荧光光谱法测定痕量锗的分析方法。设计了在线共沉淀及氢化物发生流路和操作程序，选择了各项化学条件和流路参数。方法操作简便快速，分析速度为30/h，检出限为0.11ng，相对标准偏差（n=5)为5.6%，经国家一级地质标样分析验证，方法可靠实用。
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| 关 键 词： | 原子荧光光谱法 流动注射 在线共沉淀 锗 痕量分析 测定 分离 富集 |
| 文章编号： | 1001-4020(2001)08-0357-03 |
| 修稿时间： | 2000年6月29日 |
HG-AFS DETERMINATION OF TRACE AMOUNTS OF GERMANIUM AFTER ITS PRECONCENTRATION BY FI ON-LINE COPRECIPITATION |
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| SHI Jian bo,DONG Ji zhen,TAN Chun hua,TANG Zhi yong.HG-AFS DETERMINATION OF TRACE AMOUNTS OF GERMANIUM AFTER ITS PRECONCENTRATION BY FI ON-LINE COPRECIPITATION[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2001,37(8):357-359. |
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| Authors: | SHI Jian bo DONG Ji zhen TAN Chun hua TANG Zhi yong |
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| Abstract: | A process circuit and operation program for the preconcentration of traces of germanium by FI on line coprecipitation is designed and used in hyphenation with determination by HG AFS. Manifold parameters and chemical conditions are studied and described in detail. An analytical speed of 30 samples per hour is achieved. The detection limit and RSD are found to be 0.11ng and 5.6% ( n =5) respectively. The accuracy of the present method was checked with state affirmed geological standard reference materials giving results consistent to the certified values. |
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| Keywords: | Hydride generation atomic fluorescence spectrometry FI on line coprecipitation Trace amount Germanium |
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