阻抑还原光度法测定速溶咖啡中的丙烯酰胺  

Determination of Acrylamide in Instant Coffee by Inhibitory Reduction Spectrophotometry

作　　者：张东霞[1] 罗春阳 张永明[1] Zhang Dongxiang;Luo Chunyang;Zhang Yongming(Department of Science,Xijing University,Xi’an,Shaanxi 710123,China)

机构地区：[1]西京学院理学院,陕西西安710123

出　　处：《化学世界》2020年第7期507-511,共5页Chemical World

基　　金：陕西省自然科学基础研究计划-青年(No.2017JM2028)资助项目。

摘　　要：丙烯酰胺(AAm)是一种在热加工食品过程中形成的一种致癌化学物质。速溶咖啡中丙烯酰胺质量浓度不容忽视。提出了抑制还原分光光度法测定速溶咖啡中丙烯酰胺的方法。方法简便、可靠。用于果咖白咖啡和麦斯威尔牌特浓速咖啡的测定,回收率为94.3%~105.4%。相对标准偏差(RSD)分别为3.10%和5.03%(n=3)。Acrylamide(AAm)is a kind of carcinogenic chemical formed in thermally processed foods.AAm can be easily found in instant coffee depending on processing conditions.A new,simple and reliable method is proposed for determination of AAm in instant coffee using inhibitory reduction spectrophotometry.Relative standard deviation(RSD)were 3.10%and 5.03%(n=3),respectively.Good recoveries of AAm were obtained in the range of 94.3%~105.4%.

关 键 词：丙烯酰胺 速溶咖啡 光度法 

分 类 号：O657.32[理学—分析化学]