绞股蓝中19种无机元素的测定  

Studies on Determination of 19 Inorganic Elements in Gynostemma pentaphyllum

作　　者：陈剑平 陈福北[2] 王力前 陈少东[2] 

机构地区：[1]广西地矿测试研究中心,广西南宁530023 [2]广西工业职业技术学院石油与化学工程系,广西南宁530001

出　　处：《食品研究与开发》2011年第5期131-133,共3页Food Research and Development

基　　金：广西教育厅科研项目(200911LX502);广西工业职业技术学院课题(桂工职院科研2009001005号)

摘　　要：以ICP-MS/ICP-AES法联合测定绞股蓝中的19个无机元素,方法的准确性用国家一级标准物质GBW10015、GBW10020对比分析证实,精密度试验大部分低于5%,检测结果显示,本方法检出限低,分析速度快,准确可靠;完全可以满足样品中无机元素测定要求。这19种元素的含量顺序依次为Ca>Mg>P>Al>Fe>Ti>Sr>Ba>Mn>B>Zn>Cu>Ni>Pb>Cr>V>Li>Cd>Co。The contents of 19 inorganic elements in Gynostemma pentaphyllum were determined by using ICP-MS and ICP-AES technique.The accuracy of the methods are verified by comparative analysis of the standard reference material GBW10015 and GBW10020,and most of precision RSDs were lower than 5 %.The analytical results indicated that this method had low detection limits,high accuracy and precision.This method was applied to the determination of inorganic elements in the sample of Gynostemma pentaphyllum.The contents of elements were Ca 〉Mg〉P〉Al〉Fe〉Ti〉Sr〉Ba〉Mn〉B〉Zn〉Cu〉Ni〉Pb〉Cr〉V〉Li〉Cd〉Co

关 键 词：绞股蓝 ICP—MS ICP—AES 无机元素 

分 类 号：R284[医药卫生—中药学]