The method has applied to determination of CaF2 in National Standard Reference fluorspar samples.The results are in agreement with certified values with precision of 0.23%RSD(n=10).

• 方法经萤石国家一级标准物质检验；测定结果与标准值相符；10次测定的相对标准偏差(RSD)为0.；23%25。