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镧锆涂覆石墨管的制备及其在测定地面水中痕量锰的应用
引用本文:吴奇藩,周淑贞.镧锆涂覆石墨管的制备及其在测定地面水中痕量锰的应用[J].分析化学,1992,20(4):407-409.
作者姓名:吴奇藩  周淑贞
作者单位:华南理工大学应用化学系,华南理工大学应用化学系,华南理工大学应用化学系,华南理工大学应用化学系 广州 510641,广州 510641,广州 510641,广州 510641 1988届本科毕业生
摘    要:本文研究La和Zr混合溶液涂覆石墨管的方法,并将其和涂La石墨管在性能、工作条件进行多方面的比较。结果表明,La-Zr涂覆石墨管能够提高某些元素的测定灵敏度、灰化温度,稳定性和使用寿命。本文还研究了采用La-Zr石墨管测定地面水中痕量锰的分析条件及其他离子的干扰试验。

关 键 词:  无焰AAS  镧锆涂复  石墨管

Preparation for Graphite Tube Coated With Lanthanum-Zirconium and Its Application for Determination of Trace Manganese in Ground Water
Wu Qifan,Zhou Shuzhen,Zhou Lihua,Fu Hui.Preparation for Graphite Tube Coated With Lanthanum-Zirconium and Its Application for Determination of Trace Manganese in Ground Water[J].Chinese Journal of Analytical Chemistry,1992,20(4):407-409.
Authors:Wu Qifan  Zhou Shuzhen  Zhou Lihua  Fu Hui
Abstract:A method of the graphite tube coated with the mixed solution contaning both La and Zr was studied. Its working conditions were compared with those of graphite tube coated with La in many ways. The results show that the sensitivity of some elements, ash temperature, stability and life for use can be improved by graphite tube, coated with La-Zr.The conditions for the determination of trace Mn in ground water by this tube were also studied and interference of other ions was tested.
Keywords:Lanthanum-zirconium coated graphite tube  Flameless atomic absorption spectra  Manganese    
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