与食品接触不锈钢制品痕量铅迁移量的测定  

Study on Trace Lead in Stainless Steel by GF-AAS with Standard Addition

作　　者：陈旭辉[1] 李泳涛[1] 梁烽[1] 李英[1] 李成发[1] 刘丽[1] 孙小颖[1] 廖文忠[1] 王洪博[1] 

机构地区：[1]深圳出入境检验检疫局,广东深圳518067

出　　处：《广州化工》2014年第2期81-82,共2页GuangZhou Chemical Industry

基　　金：质检总局科研计划项目(No:2010IK040)

摘　　要：通过GF—AAS分析技术，采用标准加入法，对基体效应、基体改进剂、共存元素干扰、仪器分析参数等因素的研究，确定分析的最佳条件，建立了与食品接触不锈钢制品中痕量铅迁移量测定的方法。结果表明，该分析方法准确、可靠、操作性强；检出限为0．2μg／L；相对标准偏差在1．9％-3．1％之间；回收率在95％～107％之间。A method for the determination of trace lead in stainless steel was developed. The operation parameters by GF - AAS with standard addition, the influence of matrix, and coexisting elements were studied in detail. The experiment results indicated that the method had the advantages of accuracy, efficiency and operable. The detection limit was 0. 2 μg/L. The relative standard deviations of the method were 1.9% -3.1% and recoveries were 95% -107%.

关 键 词：GF—AAS法 标准加入法 不锈钢 铅 迁移量 

分 类 号：O65[理学—分析化学]