分光光度法快速检测奶粉中三聚氰胺  

Rapid determine melamine in milk powder by spectrophotometric method

作　　者：南海娟[1] 王伟华[2] 高晗[1] 贾蕾蕾[1] 

机构地区：[1]河南科技学院食品学院,河南新乡453003 [2]华南农业大学食品学院,广东广州510642

出　　处：《广东农业科学》2010年第5期174-175,共2页Guangdong Agricultural Sciences

摘　　要：研究了奶粉中三聚氰胺的快速检测方法。结果表明:茜素红与三聚氰胺有颜色反应,最佳显色浓度为0.01%。奶粉上清液与茜素红的最佳反应体积比例为5∶1;最大吸收波长为426nm;该方法线性范围为1～5mg/kg。In this paper,milk powder was used as raw material and the rapid detection method to melamine in milk powder had been studied.The results showed that there were color reaction between alizarin red and melamine, the best concentration of reagent was 0.01% The best volume ratio of milk powder supernatant and alizarin red was 5∶1.The maximum absorption wavelength of the reagent was 426 nm. The linear range of the method was 1～5 mg/kg and the recovery range was 94%～98%.

关 键 词：分光光度法 奶粉 三聚氰胺 

分 类 号：R155.57[医药卫生—营养与食品卫生学]