稳健偏最小二乘光度法同时测定贵金属元素锇和钌  

Robust Partial Least Squares-Spectrophotometry for Simultaneous Determination of Osmium and Ruthenium

作　　者：宋浩威[1] 王洪艳[1] 王多禧[1] 王占龙 

机构地区：[1]长春地质学院化学系,长春130026

出　　处：《分析化学》1996年第10期1162-1165,共4页Chinese Journal of Analytical Chemistry

基　　金：国家自然科学基金

摘　　要：本文将稳健偏最小二乘法用于贵金属元素锇、钌的光度法同时测定．较好地解决了实际核准模型由于实验误差偏离正态分布使计算结果的精度遭到破坏的问题；对化学量测中引入的异常点有较强的校正功能，Ⅲ从而确保了分析结果的准确性。方法的相对标准偏差Os为3．3％，Ru为2．1％。The common multivariant calibration methods are based on least squres criterion,and they are nonrobust. The robust partial least squres(RPLS) spectrophotometry has been developed for the simultaneous determination of Os and Ru. It can reduce or even eliminate the interfence of outliers in the original data. The essential principle and algorithm were introduced. The results given by RPLS method are better than those by PLS method in case of abnormal error distribution.

关 键 词：化学计量学 稳健偏 最小二乘法 锇 钌 光度法 

分 类 号：O614.82[理学—无机化学]