ICP-MS测定土壤中的Cd、Pb元素试验-石墨炉消解法

Determination of Cd and Pb in Soil by ICP-MS-Graphite Furnace Digestion Method

为了使土壤微量元素测量准确性进一步提高,研究学者以ICP-MS等离子体质谱仪为基础,对元素质量分数加以分析。为了验证石墨电热板消解土壤的准确度与精密度,对标准土壤中的Pb、Cd元素进行测定与加标试验,通过计算多次实验的标准偏差与加标回收率可知,本文中的测量方法可以用于土壤中微量重金属检测。

In order to further improve the accuracy of measuring trace elements in soil,researchers analyzed the mass fraction of elements based on ICP-MS plasma mass spectrometer.In order to verify the accuracy and precision of soil digestion by graphite electric heating plate,measurement and standard addition test were carried out in Pb and Cd in standard soil.By calculating the standard deviation and spiked recovery rate of several experiments,it can be seen that the measurement method in this paper can be used for the detection of trace heavy metals in soil.