悬浮进样-HG-AFS测定米粉中微量砷  

Suspension Sampling Determination of Arsenic in Ground Rice with Hudride Generation-atomic Fluorescence Spectrometry

作　　者：王文光[1] 李劼[1] 范学科[1] 张红娟[1] 

机构地区：[1]杨凌职业技术学院,杨凌712100

出　　处：《食品工业》2016年第8期270-272,共3页The Food Industry

摘　　要：试验以琼脂溶液作悬浮剂,超声波搅拌,自动进样器进样,氢化物发生原子荧光分光光度仪测定了样品中的微量砷,方法线性关系良好,相关系数R^2=0.999 6,检出限为0.107 0 ng/m L,RSD（n=7）在1.57%-4.17%之间,回收率在90.0%-102.6%之间,此方法测定简单、快速,回收率、准确度高,结果准确可靠。The trace arsenic in the sample was determined by using the ager solution as a suspending agent,ultrasonic stirring,automatic sample injection,hydride generation atomic fluorescence spectrometry.The results showed that correlation coefficient R-2 was 0.999 6,the detection limit was 0.107 0 ng/m L,RSD（n=7） was 1.57%-4.17%,recovery rate was 90.0%~102.6%.This method could measure the content of lead in sunflower seeds samples quickly and easily.

关 键 词：悬浮进样 氢化物发生 原子荧光光谱法 砷 

分 类 号：O657.3[理学—分析化学] TS207.5[理学—化学]