摘要
本文研究了以稀硝酸作磷矿石的分解溶剂,用氟离子选择性电极测定磷矿石中氟的各种实验条件.用本文提供的新方法,测定了四个管理样,其分析结果与管理样标准含量甚为符合,绝对偏差≤±0.2%;精密度试验表明:标准偏差S≤±0.04(%);变动系数<1.79%.
Conditions of Dilute HNO_3 decomposition of phosphate ore for the determination of F using in selective electrode have been studied. with propsed procedure four standare samples were analyzed,the result being<±0.2%. Multipled measurement of a same sample shows a precision of 0, 04(%).coefficieut of variation being<1. 79% This procedure is much simpler and faster than classicalalkaline fusion method.
出处
《贵州大学学报（自然科学版）》
1990年第2期60-63,共4页
Journal of Guizhou University:Natural Sciences
关键词
磷矿石
氟电极
氟
测定
电极法
phosphate ore F ions selective electrode
fluorine
dilute HNO_3 decomposition
