Standard addition calibration method was prefered to eliminate the matrix interference. The optimized method was validated with running the certificate reference material tea(GBW 07605) and bush leaves (GBW 07603) under the same condition.

• 对消化方法、测定方式和等离子体质谱测定条件进行了优化选择,以优化后的方法分析了国家标准物质茶叶GBW 07605和灌木枝叶GBW 07603。