首页 | 本学科首页   官方微博 | 高级检索  
     检索      

ICP-MS测定食用菌中硒的方法研究
引用本文:铁梅,臧树良,张崴,李晶,孙铁彪,李华为.ICP-MS测定食用菌中硒的方法研究[J].光谱学与光谱分析,2006,26(3):551-553.
作者姓名:铁梅  臧树良  张崴  李晶  孙铁彪  李华为
作者单位:1. 华东师范大学化学系,上海,200062;辽宁大学环境科学系,辽宁,沈阳,110036
2. 辽宁大学环境科学系,辽宁,沈阳,110036
3. 沈阳师范大学化学与生命科学学院,辽宁,沈阳,110034
摘    要:采用石英高压消化罐在较低温度下缓慢消化食用菌样品,减少了硒的损失,以ICP-MS测定食用菌中微量硒,并对分析方法进行了研究.实验表明样品浓度、积分时间与响应值呈正相关.当样品中硒的浓度大于50μg·L-1时,采用0.1 s的积分时间;硒的浓度小于5μg·L-1时,采用高于2.0 s的积分时间.标准曲线在1.0~500μg·L-1完成(r=1.000 0).回收率为99.96%~102.7%.该法具有简便、快速、灵敏、稳定、准确等优点,用于食用菌中痕量硒的分析测定,结果令人满意.

关 键 词:  电感耦合等离子质谱(ICP-MS)  食用菌
文章编号:1000-0593(2006)03-0551-03
收稿时间:2005-04-18
修稿时间:2005-08-08

Study on the Method of Using ICP-MS to Determine Se in the Edible Fungi
TIE Mei,ZANG Shu-liang,ZHANG Wei,LI Jing,SUN Tie-biao,LI Hua-wei.Study on the Method of Using ICP-MS to Determine Se in the Edible Fungi[J].Spectroscopy and Spectral Analysis,2006,26(3):551-553.
Authors:TIE Mei  ZANG Shu-liang  ZHANG Wei  LI Jing  SUN Tie-biao  LI Hua-wei
Institution:Department of Chemistry, East China Normal University, Shanghai 200062, China.
Abstract:The sample was digested by the quartzose digestion pot at high-pressure under relatively low temperature, reducing the loss of Se during the digestion process. Study on the method of using ICP-MS to determine Se in the edible fungi shows that it exhibits positive correlation between the concentration of sample and integration time, and the response value. When the concentration of Se in the sample is higher than 50 microg x L(-1), the integration time can be 0.1 s; or it can be 2.0 s when the concentration of Se is lower than 5 microg L(-1). The standard curve was accomplished for 1.0-500 microg x L(-1) when determining the content of Se in the edible fungi. The recoveries are in the range of 99.96%-102.7%. This method has advantages of simplicity, speediness, delicacy, high stability, high accuracy, etc. It is suitable for the determination of trace Se in the edible fungi.
Keywords:Selenium  ICP-MS  Edible fungi
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号