分光光度法测定异Vc豆蔻酸酯  

SPECTROPHOTOMETRIC DETERMINATION OF D-ISOASCORBYL MYRISTATE

作　　者：郑大贵[1] 叶青[1] 叶红德[1] 肖竹平[1] 

机构地区：[1]上饶师范学院化学系,江西上饶334001

出　　处：《食品研究与开发》2007年第2期126-128,共3页Food Research and Development

基　　金：江西省高等学校重点实验室科技计划项目(赣教技字[2005]301)

摘　　要：利用硅钼杂多酸与异Vc豆蔻酸酯在碱性条件下生成稳定的兰色物质,建立了一种快速、简单测定异Vc豆蔻酸酯的新方法,该体系的最大吸收波长为730nm,表观摩尔吸光系数为0.67×104mol/L.cm,线性范围0.01mg/mL～0.25mg/mL,相对标准偏差小于0.5%,回收率94.4%～100.1%。Based on the stable blue reaction product of silicamolybdenum heteropoly acid with D-isoascorbyl myristate in basic environment, a new method is presented for simple and quick determination of D-isascorbyL myristate. The biggest absorption wavelength is at 730 nm the molar absorption coefficient is 0.67×10^4 mol·L^-1·cm^-1. The linear range of determination is 0.01 mg·mL^-1 -0.25 mg·mL^-1,the relative standard deviation is less than 0.5 %, and the recovery of 94.4 % - 100.1% are given.

关 键 词：异Vc豆蔻酸酯 硅钼杂多蓝 分光光度法 

分 类 号：TS201[轻工技术与工程—食品科学]