一种测定口香糖中V_C的方法  

Determination Method of V_C from Chewing Gum

作　　者：邓鸿铃[1] 

机构地区：[1]广东食品药品职业学院食品科学系,广东广州510520

出　　处：《食品研究与开发》2012年第8期168-170,共3页Food Research and Development

摘　　要：针对目前国标没有口香糖中VC含量的检测方法,结合已有国标VC测定方法的基础上进行改良试验。对口香糖样品进行快速溶解,使样品中的VC溶解进入含有乙酸的溶液中,与固蓝盐B反应生成黄色的草酰肼-2-羟基丁酰内酯衍生物。在其最大吸收波长420 nm处,用紫外可见分光光度计测定其含量。本方法的线性范围1μg/mL^20μg/mL,检出限为1μg/mL,样品加标回收率在90.9%~98.6%,相对标准偏差为1.57%。No chewing gum for the current national standard content of Vitamin C detection methods, combined with vitamin C has been the national standard based on the determination of improved tests. The method is rapid dissolution of the gum samples, the sample of vitamin C dissolved into the solution containing acetic acid, and the reaction of fast blue salt B yellow grass hydrazide-2-hydroxybutyrate acid lactone derivatives. At its maximum absorption wavelength at 420 nm, using UV-Vis spectrophotometer and its content. The linear range of 1 ug/mL-20 ug/mL, the detection limit was 1 ug/mL, the recovery rate in the 90.9 % to 98.6 %, relative standard deviation was 1.57 %.

关 键 词：紫外可见分光光度计 VC 口香糖 

分 类 号：TS247[轻工技术与工程—制糖工程]