摘要
在弱酸性介质中,经六次甲基四胺分离锰、铁、铝及重金属离子,采用火焰原子吸收分光光度法测定四氧化三锰中的钙,考察了HCl、SrCl2对测定的影响。在选定条件下,方法线性相关系数为0.9998,检测限为0.0072mg/L,标准偏差为0.0008,变异系数为2.0%,回收率为96.8%~104.8%。
A method is discussed for the determination of calcium in Manganese Tetraoxide with FAAS.The effect of the concentration of HCl and SrCl2 on the result is studied.The result shows that the standard deviation is 0.0008,the coefficient of variation is 2.0%,the recovery rate is 96.8%~104.8%,linear relative coefficient 0.9998,and the detection limits is 0.0072mg/L.
出处
《化工设计通讯》
CAS
2007年第2期58-60,共3页
Chemical Engineering Design Communications