中华医学超声杂志

应用化学 ›› 1995, Vol. 0 ›› Issue (4): 106-110.

• 研究论文 • 上一篇    下一篇

平台石墨炉原子吸收法直接测定镍基合金中铅和锑

谢文兵, 姚金玉, 胡庆兰   

  1. 中国科学院长春应用化学研究所, 长春 130022
  • 收稿日期:1994-09-21 修回日期:1994-12-26 出版日期:1995-08-10 发布日期:1995-08-10

Direct Determination of Lead and Antimony in Nickel Alloy by Platform Graphite Furnace Atomic Absorption Spectrometry

Xie Wenbing, Yao Jinyu, Hu Qinglan   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1994-09-21 Revised:1994-12-26 Published:1995-08-10 Online:1995-08-10

PDF

520

被引次数

6 | 3

摘要： 石墨炉原子吸收法是测定痕量元素最有效的方法之一但是铅和锑都是易挥发元素,为了增强灰化过程中的稳定性和减少损失,并消除基体干扰,通常需引入基体改进剂.但测定镍基合金中铅的报道很少,测定高温镍基合金中锑的报道尚未见到.本文采用把基体改进剂,结合平台技术,测定了高温镍基合金中铅和锑.

关键词: 石墨炉原子吸收, 镍合金, 铅, 锑, 基体改进剂

Abstract: The ashing temperature could be increased and some interferences from hy-drochloric acid,molybdenum and boron could be eliminated in title method by using Pd and Nias a matrix modifier.The method can be used directly for lead and antimony analysis inhigh temperature nickel-alloy without preseparation of the matrix. The characteristic mass is 28pg and 26pg, the detection limit is 0.13μg/g and 0.23μg/g,the recovery is 94%～103% and 95%～110%,the relative standard deviation is 6.4%～7.6% and 4.7%～7.5% for leadand antimony,respectively.

Key words: graphite furnace atomic absorption, nickel alloy, lead, antimony, matrix modifier

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