微波消解-电感耦合等离子体质谱法测定杏鲍菇中的24种元素  

Determination of 24 Metal Elements in Pleurotus eryngii Quei by Inductively Coupled Plasma Mass Spectrometry with Microwave Digestion for Sample Preparation

作　　者：罗晓茵 郭新东 柳华春[2] 叶嘉荣 郭伟鹏[2] 吴玉銮 

机构地区：[1]广州市质量监督检验研究院国家加工食品质量监督检验中心广州,广东广州510110 [2]广东省微生物研究所,广东广州510070

出　　处：《现代食品科技》2012年第4期462-465,共4页Modern Food Science and Technology

基　　金：广东省科技计划项目(2007B023001001);广州市科信局科技计划项目(穗科信字[2011]233-34号)

摘　　要：建立了杏鲍菇中24种元素电感耦合等离子体质谱（ICP．MS）测定的分析方法。样品经微波消解后用ICP-MS进行分析，用Sc，Ge，Y，In，TB，Bi作内标校正基体干扰和漂移。24种元素加标回收率在90．1％118．9％之间；工作曲线相关系数均大于0．999；相对标准偏差均在0．6-5．6％之内。方法具有简单、快速和准确的特点，是一种简便、快速分析杏鲍菇中无机元素的方法。A method was established to determination of 24 metal elements in Pleumtus eryngii Quei. After microwave digestion, the samples were determined directly by inductively coupled plasma mass spectrometry which used Sc, Ge, Y, In, Tb, Bi as intemal standard to correct matrix interference and signal drifting. The quality of the results was proved by the recovery experiments （ranging from 90.1% to 118.9%）. The linear correlative coefficient for all elements was higher than 0.999. The relative standard deviations varied from 0.6% to 5.6% （n = 11）. The proposed method is fast, simple, sensitive and accurate, which can meet the demand for determining 24 metal elements in Pleurotus eryngii Quei.

关 键 词：金属元素 杏鲍菇 微波消解 电感耦合等离子体质谱法 

分 类 号：S646[农业科学—蔬菜学]