摘要
以三溴偶氮氯膦为显色剂,应用迭代目标转换因子分析光度法对15个稀土元素混合物合成样品进行同时测定,结果的平均相对误差为2.9％～5.6％。对标准数据阵的构成。主因子数的确定以及组份间浓度比对计算结果的影响等问题作了讨论。
Iterative target transformation factor spectrophotometry (ITTFS) has been applied to the simultaneous determination of 15 rare earth elements in the mixture with tribromochlorophosphonazo. The average relative error range is from 2.9％ to 5.6％. The results show that the deviation of absorption resulting from molecular interaction can be effectively corrected by ITTFS. The method is suitable for, determining simultaneously the multicomponent systems in which the absorption spectra of the components are seriously overlapped with each other. The problems have been discussed about the construction of standard matrix, the definition of principal factor number and the influence of concentration ratio of components on results.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1992年第12期1413-1415,共3页
Chinese Journal of Analytical Chemistry
基金
地质行业科技发展基金
关键词
因子分析
分光光度法
稀土族
Factor analysis
Multicomponent system
Spectrophotometry
Rare earth element
