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双波长标准加入法同时测定饮料中混合色素 预览 被引量:1

THE LEMON YELLOW AND CARMINE ARE DETERMINATED SIMULTANEAUSLY BY THE STANDARD ADDITION-DUAL WAVELENGTH SPECTRO PHOTOMETRY
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摘要 双波长标准加入法可用来测量未知物的浓度而排除共存物的影响,它能修正其它传统测量方法的一些缺陷,利用双波长标准加入法的原理对饮料中的混合色素-胭脂红和柠檬黄不经分离同时进行测定,得到了满意结果。 Dual-wavelength standard addition spectrophotometry is used for determination of mul- tiple pigment component,based on the combination of the dual-wavelength spectropho- tometry and the standard addition method.The standard addition-dual wavelength spec- trophotometry is designed to estimate the concentration of the analysis and to eliminate the interference of the coexisting species,which could remedy some defects for the two original methods.The result shows that the accuracy of this method is good for determining multiple component in the mixture.The lemon yellow and carmine are determinated simultaneously by this method.
作者 张绍衡 谢冰 薛洁 李建设 陈克 Zhang Shaoheng Xie Bing Xue Jie Li Jianshe Chen Ke (Chemical Engineering Department of ZILI)
出处 《郑州轻工业学院学报》 1995年第4期 19-23,共5页 Journal of Zhengzhou Institute of Light Industry(Natural Science)
关键词 饮料 混合色素 分光光度法 测定 standard determination pigments spectrophotometry lemom yellow carmine
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