摘要
本文提出了同时测定三组分的两波长结合一多波长最小—乘回归分光光度法，不需要等吸收点，能较好地消除异常点的影响。方法用于模拟样品和饮料样品中三种食用色素的同时测定，结果较为满意。
A method for the simultaneous determination of three components with two wavelengths in combination with multiwavelength least absolute linear regression spectrophotomtry is developed.The method does not require equal absorbance points,The influence of outliers can be well eliminated.The method is applied to simultaneous determination of three colourants in simulation samples and drinks with satisfactory results.
出处
《中国卫生检验杂志》
1996年第5期249-250,共2页
Chinese Journal of Health Laboratory Technology
基金
国家自然科学基金
关键词
多波长线性回归
分光光度法
食用色素
食品检验
Multiwavelength linear regression Spectrophotometry Least absolute Colourant in foods
