果汁饮料中甘氨酸添加剂的荧光分光光度分析  

Fluorometric determination of additive glycine in beverage

作　　者：李国强[1] 孟建新[1] 

机构地区：[1]暨南大学化学系,广东广州510632

出　　处：《化学研究与应用》2005年第6期780-782,共3页Chemical Research and Application

基　　金：广东省自然科学基金资助项目(010380)

摘　　要：Glycine can react with acetylacetone and formaldehyde in HAc-NaAc buffer to give a product which can emit strong fluorescence.A Fluorometric determination of glycine in beverage was developed in the present work.The linear range was 0.1-200μg·mL-1.Experimental conditions such as pH of the solution,reaction temperature and reaction time were optimized.Effect of coexist compound was also discussed.The method can be applied to the determination of glycine in beverages.The recovery of the method is 91.8-107.5%.Glycine can react with acetylacetone and formaldehyde in HAc - NaAc buffer to give a product which can emit strong fluorescence. A Fluorometric determination of glycine in beverage was developed in the present work. The linear range was 0. 1 - 200μg · mL^-1. Experimental conditions such as pH of the solution, reaction temperature and reaction time were optimized. Effect of coexist compound was also discussed. The method can be applied to the determination of glycine in beverages. The recovery of the method is 91.8 - 107.5%.

关 键 词：甘氨酸 乙酰丙酮 荧光 

分 类 号：O657.39[理学—分析化学]