【摘要】 本文提出以5-Br-PADAP双波长K系数法同时测定钻镍的新方法。该法灵敏度高,选择性好,用于若干组成复杂样品的分析,在CO:Ni=20:1或1:15范围均可获得满意结果。更多还原

【Abstract】 A new double-wavelength k-coefficient method for the simultaneous determination of Co and Ni has been developed. The results showed that a high sensitivity(△_εco=8. 7×10⁴ L. mol^-1. cm^-1, △_εN1=1. 08×10⁵L·mol^-1·cm^-1) was obtained in the reaction between Co or Ni and 5-Br-PADAP, and a larger quantity of disturbing ions could be tolerated due to the utilization of NH₄F, GEDTA and acetylacetone as masking agents. The present method has been successfully applied to the analysis of the samples such as catalysts, alloy steels, rocks, etc. in which the ratio of Co to Ni is 20 to 1 or 1 to 15.更多还原