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柠檬黄、胭脂红、苋菜红、靛蓝是我国规定使用的人工合成色素。我们曾用消光E的加和性原则制定了一个定量方法,并为国家标准方法所采用。近年来国外曾报导用双波长分光光度法测定色素,本文根据双波长原理,针对我国使用的色素品种和仪器情况,重新设计了一个分析系统:给出了各种单组分、双组分和红-蓝-黄三组分色素溶液的定量方法以及用数理统计方法推算了回归方程和公共回归方程。
Lemon yellow, carmine, amaranth, indigo is China’s use of synthetic pigments. We have developed a quantitative method using the additive principle of extinction E and adopted it for national standard methods. In recent years, foreign countries have reported the use of dual-wavelength spectrophotometric determination of pigment, this article according to the principle of dual-wavelength, for our use of pigment varieties and instruments, redesigned an analysis system: given a variety of single-component, Red-blue-yellow pigment solution of three quantitative methods and the use of mathematical statistics to calculate the regression equation and public regression equation.