摘要
采用标准曲线法,建立了ICP-AES同时测定水氯镁石中钾、钠、钙、硫元素的分析方法方法。进行加标回收试验对方法的准确度进行验证,实验结果表明各待测元素的加标回收率为95.40%~100.20%。进行精密度实验对方法的精密度进行验证,实验结果表明相对标准偏差RSD%为1.02%~6.12%。进行系列标准溶液的曲线设计,在选定波长下标准曲线的相关系数均大于0.999。通过对空白溶液进行分析,确定方法的检出限和测定下限。方法简单可靠、准确度高,精密度好。
A method for ICP-AES simultaneous determination of potassium,sodium,calcium and sulfur in bischofite was established by standard curve method.The accuracy of the method was verified by standard-added recovery test,the results showed that the recovery rate of each element was 95.40%~100.20%.Carry out precision experiments to verify the precision of the method,experimental results showed that the relative standard deviation RSD is 1.02%~6.12%.Curve design of a series of standard solutions,the correlation coefficients of the standard curves at the selected all more than 0.999.The detection limit and the lower limit of the method were determined by analyzing the blank solution.The method is simple,reliable,accurate and precise.
作者
王景凤
隆英兰
韩俊丽
董哲飞
WANG Jing-feng;LONG Ying-lan;HAN Jun-li;DONG Zhe-fei(Technology Development of Western Mining Group Co.,Ltd.,Xining 810006,China;The Engineering and Technology Research of Qinghai Western Mining Co.,Ltd.,Xining 810006,China;Qinghai Key Laboratory Plateau Comprehensive Utilization and Mineral Processing Engineering,Xining 810006,China;Qinghai Nonferrous Mineral Resources Engineering Technology Research Center,Xining 810006,China;Arura,Tibetan Medicine Co.,Ltd.,Xining 810000,China)
出处
《盐科学与化工》
CAS
2020年第9期24-27,共4页
Journal of Salt Science and Chemical Industry
基金
北京化工大学化工资源有效利用国家重点实验室开放课题(CRE-2018-C-105)
利用盐湖镁资源制备镁基功能材料关键技术开发与应用(2020-GX-A1)。