化学学报 ›› 1987, Vol. 45 ›› Issue (9): 860-864. 上一篇    下一篇

研究论文

双显色体系-双波长分光光度法研究

奚长生;李金和;韩超;史慧明   

  1. 南开大学化学系
  • 发布日期:1987-09-15

Study on the dual-system and double-wavelength spectrophotometry

XI CHANGSHENG;LI JINHE;HAN CHAO;SHI HUIMING   

  • Published:1987-09-15

本文提出了一种新的光度分析法-双显色体系-双波长分光光度法,其波长对的组合为两个完全独立的显色体系.通过选择适当的R,L体系,可使该法有效地排除干扰,提高测定灵敏度.本文对提出的方法进行了理论推导和实验验证.

关键词: 分光光度法, 二元体系, 镍, 锰, 铜, 镉, 显色反应, 双波长

A new technique, dual-system and double-wavelength spectrophotometry has been developed. The method is based on the selection of the wavelength pair in 2 independent colored complex systems. By suitable choosing of R and L systems both the anti-interference ability and the sensitivity could be effectively increased, and its adaptability is better than that in the conventional double-wavelength spectrophotometric method. This new method has been theor. deduced and experimental proved in the simultaneous determination of Cu(II), Ni(II) and Cd(II), Mn(II) pairs.

Key words: SPECTROPHOTOMETRY, BINARY SYSTEM, NICKEL, MANGANESE, COPPER, CADMIUM, COLOR REACTION, DUAL-WAVELENGTH

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