淀粉包被VA乙酸酯含量测定的研究

摘要

ABSTRACT:By HPLC,three different pretreatment methods were used in the determination of content of starch coated vita-min A acetate,and the methods were verified.Experimental results showed that the extract in GB/T 7292—1999 method was replaced of 1∶1 acetone tetrahydrofuran,which could effectively dissolve the components of starch coated vitamin A acetate. This method can satisfy the determination of VA acetate coated by starch and gelatin.%采用高效液相色谱法，研究了三种不同前处理方法对淀粉包被 VA 乙酸酯测定的影响，并进行了方法验证。结果表明，将 GB/T 7292—1999中的提取液换成1∶1丙酮四氢呋喃溶液，能有效溶解出淀粉包被 VA乙酸酯的成分。这种方法能同时满足测定淀粉包被和明胶包被 VA乙酸酯的要求。