石墨炉原子吸收光谱法测定航空铜合金中微量铅
GF-AAS DETERMINATION OF MICROAMOUNTS OF LEAD IN AVIATION COPPER ALLOY
摘 要
用硝酸和氢氟酸溶解铜合金,用石墨炉原子吸收光谱法直接进行测定.为了消除基体元素及其他共存元素的干扰采用标准加入法进行测定,并对最佳的测量酸度进行讨论.方法用于航空铜合金中铅的测定,加标回收率为90.5%-113.0%,基本消除干扰,方法简单、快速.
航空铜合金
铅
测定
GFAAS
Aviation copper alloy
Lead
Determination
Abstract
The sample was dissolved in a mixture of nitric acid and hydrofluoric acid then determined by graphite furnace atomic absorption spectrometry.Effects of acid,acid concentration and interfering elements on the accuracy of the determination of lead were tested.Method of standard addition was used to eliminate matrix effect and interferences of the coexisting impurities.The proposed method has been applied to the determination of lead in the aviation copper alloy.Recovery was ranged in 90.5%-113.0%.The method was proved to be simple and rapid.
中图分类号 O657.31
所属栏目 工作简报
基金项目
收稿日期 2004/5/17
修改稿日期
网络出版日期
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备注刘建华(1957-),男,湖南人,博士生导师,主要研究方向为材料分析.
引用该论文: LIU Jian-hua,YU Mei,LI Song-mei. GF-AAS DETERMINATION OF MICROAMOUNTS OF LEAD IN AVIATION COPPER ALLOY[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2006, 42(4): 272～273
刘建华,于美,李松梅. 石墨炉原子吸收光谱法测定航空铜合金中微量铅[J]. 理化检验－化学分册, 2006, 42(4): 272～273
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参考文献
【1】GB/T 5121.1-5121.23-1996,铜及铜合金化学分析方法[S].
【2】Tang Youwen.Separation and Preconcen-Tration of Ultratrace Lead in Biological Organisms and its Determination by Graphite Furnace Atomic Absorption Spectrometry[J].Talanta,1996,43:761-765.
【3】Salvador A.Determination of Selenium,Zinc and Cadmium in Antidandruff Shampoos by Atomic Spectrometry After Microwave Assisted Sample Digestion[J].Talanta,2000,51:1171-1177.
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【2】Tang Youwen.Separation and Preconcen-Tration of Ultratrace Lead in Biological Organisms and its Determination by Graphite Furnace Atomic Absorption Spectrometry[J].Talanta,1996,43:761-765.
【3】Salvador A.Determination of Selenium,Zinc and Cadmium in Antidandruff Shampoos by Atomic Spectrometry After Microwave Assisted Sample Digestion[J].Talanta,2000,51:1171-1177.
【4】Silvera Scaccia.Determination of Traces of Ni,Co and Fe in LiCO3/K2CO3 Melt by Flame Atomic Absorption Spectrometry[J].Talanta,1999,49:467-472.
【5】孙淑媛,孙龄高.岩石矿物分析[J].分析试验室,1998,17(4):97-109.
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