用Procrustes旋转-相关光谱数据分解同时光度测定硝酸根和亚硝酸根的探讨  

Simultaneous Spectrophotometric Determination of Nitrite and Nitrate by Procrustes Rotation-Correlation Spectral Data Analysis

作　　者：汤桂娜[1] 王保宁[1] 

机构地区：[1]中国科学院长春应用化学研究所国家电化学和光谱研究分析中心,长春130022

出　　处：《分析化学》1996年第12期1437-1440,共4页Chinese Journal of Analytical Chemistry

基　　金：国家自然科学基金

摘　　要：输入具有相同光谱轮廓但不同浓度试样的吸光度数据，通过对相关光谱的分解及Procrustes旋转，可在无需校正试样的情况下获得试样中的组分数、纯组分光谱轮廓和各组分的相对浓度等信息，本文探索将此方法应用于NO-2及NO-3的同时光度测定，获得较好的结果。Based on the analysis of two sets of correlated spectral data, which have same profiles but different magnitudes in the samples, the number of components, the spectral profiles of pure components and the relative concentrations of each component can be obtained without the need of any prior knowledge about the sample. The method was described and it was applied to the simultaneous spectrophotometric determination of NO2- and NO3-with satisfactory results.

关 键 词：化学计量学 光谱分解 形态分析 硝酸根 亚硝酸根 

分 类 号：O613.61[理学—无机化学] O655.6[理学—化学]