X-荧光能谱法测定土壤标样中的钙和钾

Determination of Ca and K in Soil Reference Materials by ED-XRF

本文提出X-荧光能谱仪测定土壤标样中钙、钾含量的方法。本方法采用能谱仪中定量分析软件,选择适当工作条件,测定了10个土壤标样中钙(CaO)。钾(K_2O)。结果表明土壤标样中钙(CaO)含量在0.05％—3.23％之间,准确度<0.1％,相对标准偏差≤20％。钾(K_2O)含量在0.20％—3.04％之间,准确度<0.2％,相对标准偏差<20％。

Ca and K in 10 Soil reference materials was analyzed by ED-XRF.The results showed that the analytical prcission RSD was<0.2 for Ca and K.The method was rapid and reliable.