摘要
采用双通道的FP - 6 4 0火焰光度计对磷矿中钾、钠元素进行联合测定试验。试验结果表明 :在 0 .1%～ 1.0 %区间内 ,K2 O的相对标准偏差 (RSD )为 1.88%～ 2 .93% ,回收率为 96 .6 %～ 10 2 .7% ;Na2 O的相对标准偏差 (RSD)为 1.0 5 %～ 2 .10 % ,回收率为 97.3%～ 10 1.2 %。
An experiment is carried out on the simultaneous determination of potassium and sodium elements in phosphate rock with the dual channel FP-640 flame photometer. The experimental results show that, in the 0.1%～1.0% region, the relative standard deviation (RSD) of K_2O is 1.88%～2.93%, and the recovery is 96.6%～102.7%; the RSD of Na_2O is 1.05%～2.10%, and the recovery 97.3%～101.2%.
出处
《化肥工业》
CAS
2003年第6期48-50,共3页
Chemical Fertilizer Industry
关键词
火焰发射光谱法
磷矿石
磷精矿
氧化钾
氧化钠
flame emission spectrometry phosphate rock potassium oxide sodium oxide
