| 流动注射在线离子交换分离富集-氢化物发生原子荧光光谱法测定铜合金中痕量锑 |
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| 引用本文： | 吴良俊,邱海鸥,郝志红,袁红战,郑洪涛.流动注射在线离子交换分离富集-氢化物发生原子荧光光谱法测定铜合金中痕量锑[J].分析仪器,2009(6):58-61. |
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| 作者姓名： | 吴良俊 邱海鸥 郝志红 袁红战 郑洪涛 |
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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,武汉,430074 |
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| 摘 要： | 提出了流动注射离子交换在线分离富集-氢化物发生原子荧光光谱法测定铜合金中痕量锑的分析方法。设计了流动注射在线离子交换的流路和操作程序,优化了各项化学条件。采用717强碱性阴离子交换树脂吸附锑,并能有效消除铁、镍、铅等元素的干扰,也使大量基体元素铜与待测元素分离,锑在1.4mol/L的HCl介质中上柱,选用2.0mol/L的HNO3作为洗脱剂。实现了氢化物发生原子荧光光谱法对铜合金中痕量锑的在线测定。方法操作简便、快速,环境污染小,线性范围为0.15～120μg/L,相对标准偏差在3%～5%之间,检出限为0.05μg/L。方法应用于铜合金标准样品,结果与推荐值吻合。
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| 关 键 词： | 流动注射 离子交换 氢化物发生 原子荧光光谱法 锑 铜合金 |
Determination of trace antimony in copper alloys by flow injection on-line ion-exchange separation and enrichment-hydride generation atomic fluorescence spectrometry |
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| Wu Liangjun,Qiu Haiou,Hao Zhihong,Yuan Hongzhan,Zheng Hongtao.Determination of trace antimony in copper alloys by flow injection on-line ion-exchange separation and enrichment-hydride generation atomic fluorescence spectrometry[J].Analytical Instrumentation,2009(6):58-61. |
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| Authors: | Wu Liangjun Qiu Haiou Hao Zhihong Yuan Hongzhan Zheng Hongtao |
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| Affiliation: | Wu Liangjun,Qiu Haiou,Hao Zhihong,Yuan Hongzhan,Zheng Hongtao (Faculty of Material Science and Chemistry Engineering,China University of Geosciences,Wuhan,430074) |
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| Abstract: | A method for the determination of trace antimony in copper by flow injection on-line ion-exchange separation and enrichment-hydride generation atomic fluorescence spectrometry is suggested.The manifolds and operating program for ftlow injection on-line ion-exchange were designed and chemical conditions were optimized.Antimony complex was absorbed on strongly basic anion exchange resin 717 with 1.4 mol/L HCl as absorbent medium and 2.0 mol/L HNO3 for elution.The interference of co-existent elements (iron,nic... |
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