微波消解-ICP-MS法测定大米中的硒含量  

Determination of Selenium in Rice with Microwave-assisted and ICP-MS

作　　者：林词意 吴雨霏 何文俊 林佳怡 朱雨洁 章伟锋 陈晓燕 王立[2] LIN Ciyi;WU Yufei;HE Wenjun;LIN Jiayi;ZHU Yujie;ZHANG Weifeng;CHEN Xiaoyan;WANG Li(Zhejiang Pharmaceutical College,Ningbo,Zhejiang 315000,China;Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals of Zhejiang Province,Ningbo Municipal Center for Disease Control and Prevention,Ningbo,Zhejiang 315010,China)

机构地区：[1]浙江医药高等专科学校,浙江宁波315000 [2]浙江省微量有毒化学物健康风险评估技术研究重点实验室,宁波市疾病预防控制中心,浙江宁波315010

出　　处：《农产品加工》2022年第21期63-64,70,共3页Farm Products Processing

基　　金：浙江省职业教育与成人教育科研课题(2021-58);浙江省大学生科技创新活动计划项目(2020R424002)。

摘　　要：建立电感耦合等离子体质谱仪(ICP-MS)快速测定大米中硒的方法。采用微波消解仪消解大米样品,ICP-MS法测定硒元素的含量。结果表明,优化后,方法测定结果的RSD为2.3%~4.6%(n=6),3个水平的回收率范围为97.0%~97.6%,在取样量为0.3 g时方法的检出限为0.0003 mg/kg。该方法简便快捷、准确性好、灵敏度高,适用于大米中硒含量的测定。To explore the best measurement method to determine Selenium in rice.Selenium in rice was determined by Iductively coupledplasma mass spectrometry(ICP-MS)fter microwave digestion.The results showed that in the best condition,the results of the RSD was 2.3%~4.6%(n=6),recovery rate of the three levels nere 97.0%~97.6%,the deteetion limit of the methed was 0.0003mg/kg when the sampling amount was 0.3 g.The method was simple and fast,high sensitivity,could be used as rice trace selenium determination.

关 键 词：电感耦合等离子体质谱法(ICP-MS) 大米 硒 微波消解 

分 类 号：TS212.7[轻工技术与工程—粮食、油脂及植物蛋白工程]