中国海洋大学学报（自然科学版）2011，Vol.41Issue(5)：79-84,6.
CPA矩阵-催化动力学光度法同时测定镍和铁混合双组分的分析方法研究
The Simultaneous Determination of Mixture of Nickel ( Ⅱ ) and Iron( Ⅲ ) Based on CPA Matrix Method-Catalytic Dynamic Analytic Method
摘要
Abstract
A new catalytic dynamic analytic method for determining simultaneously the mixture of iron ( Ⅲ ) and nickel( Ⅱ ) based on CPA matrix method is studied. The method can be used to determine successfully the iron( Ⅲ) and nickel( Ⅱ ) in fresh water. The best analysis conditions of determining the iron ( Ⅲ ) and nickel( Ⅱ ) together are found out :pH＝ 2. 00, t= 25.0 ℃, V(1,10-phenanthrene)= 2.00 mL, c (KIO4) = 1.2 × 10-4mol · L-1 ,c(RAWL)=5. 00 × 10-5mol · L-1,reactin time t= 10 min. Under the best analysis conditions, t. he proposed method allows the measurement of iron( Ⅲ ) in the range of 0～70.00 ng · mL-1 and nickel( Ⅱ ) in the range of 0～60.00 ng · mL-1. The relative standard deviations of the method are in the range of 0. 61％～2. 32％. The recovery efficiencies of 12 groups iron( Ⅲ ) and nickel( Ⅱ )mixture are in the range of 95.4％～104. 4％. The iron( Ⅲ ) and nickel( Ⅱ ) in the tap water samples and the Yellow River water samples are determined respectively with the new method. The recovery efficiencies of the results are in the range of 95.5％99.0％.关键词
催化动力学分光光度法/铁(Ⅲ)/镍(Ⅱ)/CPA矩阵法Key words
catalytic kinetic spectrophotometry/ iron( Ⅲ )/ nickel( Ⅱ )/ CPA matrix method分类
化学化工引用本文复制引用
姬泓巍,张菲菲,辛惠蓁,曹恒霞,李双..CPA矩阵-催化动力学光度法同时测定镍和铁混合双组分的分析方法研究[J].中国海洋大学学报（自然科学版）,2011,41(5):79-84,6.基金项目
国家自然科学基金项目(41076045)资助 （41076045）
