摘要
采用微波消解和干法灰化两种前处理方法,电感耦合等离子质谱(ICP-MS)测定了茶叶中的16种稀土元素.外标法绘制校准曲线,分析了国家标准物质茶叶GBW07605和GBW10016,测定值与标准值吻合,样品测定的精密度在0·6%—6·3%,方法检出限为0·04—0·43μg·kg-1.用加标回收的方法评价了该方法的准确性,回收率为96·0%—108·0%之间.
A method was studied for the analysis of 16 rare earth elements（REEs） in tea leaves by using ICP-MS. The samples were discomposed by microwave digest and dry ashing. Method detection limit for 16 REEs was 0. 04-0. 43 μg· kg^-1. The relative standard deviations were between 0. 6%--6. 3% and the recovery percentares were between 96. 0%-108.0%.
出处
《环境化学》
CAS
CSCD
北大核心
2007年第4期555-558,共4页
Environmental Chemistry
