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缝管捕集原子吸收光谱法测定环境样品中微量Pb、Cu和Cd

DETERMINATION OF TRACE Pb,Cu and Cd IN ENVIRONMENTAL SAMPLE BY SLOTTEDTUBE ATOMTRAPPING ATOMIC ABSORPTION SPECTROMETRY

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【作者】 钱沙华; 黄淦泉; 杨海燕; 康辉; 文强;

【Author】 QIAN Shahua,HUANG Ganquan,YANG Haiyan,KANG Hui and WEN QiangDepartment of Environment Science,Wuhan University,430072 Wuhan

【机构】 武汉大学环境科学系;

【摘要】 研究了缝管原子捕集原子吸收光谱法测量Pb、Cu和Cd的最佳条件。结果表明,在选定的条件下,捕集1min,测得Pb、Cu和Cd的特征浓度分别为182×10-3、126×10-3和67×10-5mg/L,比常规火焰原子吸收光谱法的灵敏度分别提高110、39和150倍,用本方法测定地表水、茶叶和人发等环境样品中的微量Pb、Cu和Cd,结果满意。

【Abstract】 The optimal measuring conditions of slottedtube atomtrapping atomic absorption spectrometry of Pb,Cu and Cd were examined in detail.The results show that the characteristic concentrations measured after trapping for 1min under definite conditions were 182×10-3,126×10-3 and  67×10-5mg/L for Pb,Cu and Cd,respectively.Thus slotted tube atomtrapping AAS yields increase in sensitivety for Pb,Cu and Cd by 110,39 and 150 fold,respectively,in comparison with the conventional FAAS.Trace elements Pb,Cu and Cd in earth surface water,tea and hair were determined by slotted tube atomtrapping.Satisfactory results were obtained.

【关键词】 原子捕集; 原子吸收光谱法; Pb; Cu; Cd;
【Key words】 Atomtrapping; Atomic absorption spectrometry; Pb; Cu; Cd;
【基金】 湖北省自然科学基金
  • 【文献出处】 光谱学与光谱分析 ,SPECTROSCOPY AND SPECTRAL ANALYSIS , 编辑部邮箱 ,1998年03期
  • 【分类号】O657.31
  • 【被引频次】16
  • 【下载频次】64
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