电感耦合等离子体发射光谱法快速测定磷矿石中主次量组分  

Determination of Major and Minor Components in Phosphate Ores by Inductively Coupled Plasma-Atomic Emission Spectrometry

作　　者：冯晓军[1] 罗廉明[1] 陈晶亮[1] 姜威[1] 

机构地区：[1]云南磷化集团有限公司研发中心,云南昆明650113

出　　处：《岩矿测试》2009年第4期399-400,共2页Rock and Mineral Analysis

摘　　要：采用碳酸锂-硼酸混合熔剂在高频熔样机上熔融样品酸化定容后，直接用电感耦合等离子体发射光谱法快速测定磷矿石中五氧化二磷、氧化钙、氧化镁、二氧化硅、氧化铁、氧化铝、氧化钾、氧化钠、二氧化钛、氧化锰、氧化锶11种组分的含量，对入射波长、雾化压力、入射功率、提升量等分析条件进行了优化。方法检出限为0．0001～0．019μg／g，相对标准偏差（RSD，n=11）为0．78％～2．60％。建立的方法抗干扰能力强，线性范围宽，精密度高，结果准确，适用于磷矿石中主次量组分的分析。Phosphate ore sample was fused with mixed fusing agent of lithium carbonate-boric acid and the melt bead was then dissolved with acid. Major and minor components including P2O5, CaO, MgO, SiO2, FeO3, Al2O3, K2O, Na2O, Ti3O2, MnO, SrO in the sample solution were directly determined by inductively coupled plasma-atomic emission spectrometry （ICP-AES）. Some parameters affecting the determinations such as the incident wavelength, atomization pressure, incident power and sample uptake rate were studied and optimized. Detection limits of the method were in the range of 0.01301 to 0. 019 μe/g and the determination precision was from 0. 78% - 2. 6% RSD （n = 11 ） for the elements. The method provides the advantages of high accuracy and precision, wide linear dynamic range, less interference and suitable for the analysis of major and minor components in phosphate ores.

关 键 词：电感耦合等离子体发射光谱法 常量和微量元素 磷矿石 

分 类 号：O657.31[理学—分析化学] P578.92[理学—化学]