【摘要】 本文对国内法定的合成食用色素(苋莱红,胭脂红,柠檬黄,日落黄,亮蓝)可能构成的十种双拼色体系,进行了二阶导数光度分析的系统研究。详细报告了求导参数和分别测定的条件,并完成若干实例分析。更多还原

【Abstract】 A systematic study has been made on the simultaneous determinations of synthetic food colorants(amaranth, new coccine, tartrazine, sunset yellow and brilliant blue)in all their possible binary mixtures by using the 2nd derivative spectrophotometry. The numerical methods of generating derivative spectra involve the spline function and Savitzky-Golay convolution. Both are effective but the latter is adopted for the routine analysis through a software. The detail parameters and conditions have been listed with which the analyses of the mixed colorants in several liqueurs and pharmaceutical formulations were performed by using the suggested technique.更多还原