摘要
对检测辐照食品所采用的热释光法进行了研究。证明了在一定范围内,吸收剂量率对热释光检测结果基本没有影响;分离样品中的矿物质,测量其热释光发光峰积分值G1,矿物质经1 kGy吸收剂量的照射后,再测量其热释光发光发光峰积分值G2,以发光比G1/G2的大小作为样品经过辐照与否的判断依据,以22种食品样品为例进行检测,检测结果与实际情况完全符合。
This study investigated the thermoluminescence （TL） method in the detection of irradiated food. Proved that within limits use the thermoluminescence analysis to detect the irradiated food need not consider the absorbed dose rate;After themineralmaterials were isolated from the samples,its peak area integral G1 of the thermoluminescent curve was measured by TLD.Then themineralmaterials were irradiated by at dose of 1 kGy, and its peak area integral G2 of the thermoluminescent curve was alsomeasured.The ratioof G1/G2 was calculated as criteria whether the sample had already irradiated or not.About 22 species of food samples for testing, test results conforms well with the actual situation.
出处
《食品研究与开发》
CAS
北大核心
2013年第22期14-17,共4页
Food Research and Development
基金
国家质检公益性行业科研专项项目(200910142)
关键词
热释光
辐照食品
鉴定
吸收剂量率
thermoluminescence
irradiated food
identification
absorbed dose rate
