摘要
采用四硼酸锂+偏硼酸锂复合熔剂,高频熔融炉熔融,硝酸浸取方式溶解萤石,用已知含量萤石标准物质制作标准工作曲线,用ICP-AES法联合测定萤石中钾、钠、硅、铁、磷组分含量。选择两条谱线进行分析,方法检出限在0.001~0.22mg/L,样品检测5次的相对标准偏差小于9.3%,测定值与证书值相吻合。
Fluorite was dissolved by nitric acid leaching in high frequency melting furnace with ithium tetraborate and lithium metaborate composite flux, the standard working curve was made with fluorite standard substance with known content, and the content of silicon, phosphorus, potassium, sodium and iron in fluorite was determined by ICP-AES method. Two spectral lines were selected for analysis, the detection limit was between 0.001-0.22 mg/L, the relative standard deviation of the sample for testing 5 times was less than 9.3%, and the measured value was consistent with the certificate value.
作者
蒲雪萍
PU Xueping(Jiangsu Shagang Group Huigang Spesial Steel Co.,LTD., Huaian,Jiangsu 23002,China)
出处
《中国无机分析化学》
CAS
2019年第3期28-32,共5页
Chinese Journal of Inorganic Analytical Chemistry
