导数光度法同时测定五种食用合成色素  

Simultaneous Determination of Five Synthetic Food Colorants by the First Derivative Spectrophotometry

作　　者：冯素萍[1] 王淑仁[1] 陈荣礼[1] 李高兰[2] 王丽增[2] 

机构地区：[1]山东大学实验中心,济南250100 [2]山东大学化学院

出　　处：《分析化学》1993年第3期294-298,共5页Chinese Journal of Analytical Chemistry

摘　　要：本文用一阶导数光度法研究了五种食用合成色素的吸光特性。选定五个波长测定五组份混合食用合成色素。十次测量的相对标准偏差<1.0％,标准回收在98％～103％以内。The simultaneous determination of Brilliant blue(B1), amaranth(R2) ,new cocive (R102 ), sunset yellow (Ys) and tartrazine(Y4) in all their possible mixtures in proposed by using the first derivative spec-trophotometry. This method is used to quantitatively determine twenty six different mixtures. Ten replicate determinations in a test solution containing B1(1. 6μg/ml) ,R2(20μg/ml) ,R102(20μg/ml) ,Ys(7μg/ml) and Y4 (10μg/ml) are carried out with the relative standard deviation of 0. 69%,0. 92%,0. 65%,0. 48% and 1.00%, respectively, The recovery is in the range of 98% -103%.

关 键 词：导数光度法 食用色素 

分 类 号：TS202[轻工技术与工程—食品科学]