高等学校化学学报

高等学校化学学报 ›› 1987, Vol. 8 ›› Issue (11): 978.

• 研究简报 • 上一篇    下一篇

缝管法增强火焰原子吸收分析灵敏度的研究--测定血清中铜和锌

孙书菊, 邴贵德, 郑衍生, 郭毅   

  1. 吉林大学化学系
  • 收稿日期:1986-08-18 出版日期:1987-11-24 发布日期:1987-11-24

The Enhance of the Sensitivity of Conventional Flame Atomic-Absorption Spectrometry by Slotted Stainless Steel--Determination of Copper and Zinc in Serum

Sun Shuju, Bing Guide, Zheng Yansheng, Guo Yi   

  1. Department of Chemistry, Jilin University, Changchun
  • Received:1986-08-18 Online:1987-11-24 Published:1987-11-24

PDF (PC)

摘要： 火焰原子吸收光谱法由于基体干扰少、操作简便、设备廉价得到了广泛应用,但同时又因为灵敏度不够高其应用受到某些限制,非火焰的石墨炉原子吸收分析法,灵敏度较火焰法有很大提高.但由于有较严重的基体效应、设备复杂、价格昂贵。

Abstract: A slotted stainless steel tube when used in air-acetylene flame increses the residence time of atoms in the light path of an atomic-absorption spectrometer, thus increasing the analytical sensitivity. With this technique copper and zinc were determined in serum diluted 1:20. Rapid accurate analyses can be achieved by using continuous aspiration. Use of aqueous standards resulted in recovery for copper and zinc of 92-110.9%. Coefficient of variation of 2.7% and 3.6% respectively.

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