摘要
目的:建立了茶叶和茶叶提取物中微量金属含量的测定方法。方法:样品经微波消解后,以铟为内标,用电感耦合等离子体质谱(ICP-MS)测定样品中10种微量金属元素。结果:方法快速、准确、检测限低。对茶树叶标准物质(GBW08513)测定结果满意。结论:ICP-MS 法是测定茶叶中微量金属元素的有效分析方法,内标法使得测定方法更加完善、可靠。
Objective:Established the method for determination of the race elements in tea and the extraction of ICP -MS for determination of 17 elements. Reslut:The method provided excellent sensitivity and accuracy. It was a efficient method for determination of 10 elements in tea. The results obtained showed close agreement with the reference values the standard reference material of tea leaves (GBW08513 ). Conclusion:The method is accurate and reliable. Using the in as an internal standard can make the method consummately and reliable.
出处
《药物分析杂志》
CAS
CSCD
北大核心
2007年第3期386-388,共3页
Chinese Journal of Pharmaceutical Analysis