Determination of Light Rare Earths by a Spectrophoto-metry Based on the Linear Combination of Multiwavelength Data
来源期刊：Journal of Rare Earths1993年第3期
论文作者：刘思东 崔秀君 郭伊荇 李永涛
文章页码：211 - 215
摘 要：<正> The present paper proposes a new method of spectrophotometry based on linear combination ofmultiwavelength data by means of selecting a set of properly weighted coefficients and combination methods.It is clear that the weighted combination absorbance attained is only in direct proportion to the concentrationof the analysed component and independent of coexisting interferents.The accuracy of the analytical resultsis improved greatly for the analysis of light rare earths with the coexistence of heavy rare earths.The analyti-cal error from the reagent blank and co-coloration of light and heavy rare earths have also been overcome.The greatly improved linearity and additivity of absorbance are obtained.
刘思东，崔秀君，郭伊荇，李永涛
摘 要：<正> The present paper proposes a new method of spectrophotometry based on linear combination ofmultiwavelength data by means of selecting a set of properly weighted coefficients and combination methods.It is clear that the weighted combination absorbance attained is only in direct proportion to the concentrationof the analysed component and independent of coexisting interferents.The accuracy of the analytical resultsis improved greatly for the analysis of light rare earths with the coexistence of heavy rare earths.The analyti-cal error from the reagent blank and co-coloration of light and heavy rare earths have also been overcome.The greatly improved linearity and additivity of absorbance are obtained.
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