茶叶中磷、钾、铅、锌等17种元素的快速测定方法研究  

Study on Simultaneous Determination of Phosphorus,Potassium,Lead,Zinc etc. Altogether 17 Elements in Tea

作　　者：石元值[1] 马立峰[1] 韩文炎[1] 阮建云[1] 

机构地区：[1]中国农业科学院茶叶研究所,农业部茶叶化学工程重点实验室,浙江杭州310008

出　　处：《食品科学》2006年第1期193-196,共4页Food Science

基　　金：浙江省科技计划项目(021102029)

摘　　要：采用微波消煮、敞开式湿法消化及干灰化前处理-ICP-OES法对茶叶中的磷、钾、铅、锌等17种元素同时进行了检测,方法简便、准确度高,并对样品前处理、共存元素干扰、方法准确度等因素进行了探讨。方法回收率都在81.6%～107.2%之间,其相对标准偏差在0.23%～8.92%之间,方法能满足茶叶的测定要求,并且大大减少了检测者的工作强度。A method simultaneously determining of Phosphorus, Potassium, Lead, Zinc etc. altogether 17 elements in tea by ICP-OES was developed. This paper study the method of dealing with the tea sample and determination conditions by ICP-OES. Influence such as dements interference were discussed, The rate of the recoveries of 17 elements is from 81.6% to 107.2%, with relative standard deviation （RSD） is from 0.23% to 8.92%. Analytical results of standard reference material （tea） obtained by the means of this method are in good agreement with the reference values. The method is satisfactory for tea.

关 键 词：样品前处理 ICP-OES 茶叶 磷 钾 铅 锌等17种元素 

分 类 号：TS207[轻工技术与工程—食品科学]