CAJ | 학술논문

采用电感耦合等离子质谱法（ICP-MS）直接测定离子型稀土原矿中离子相稀土总量，实验对浸取溶液、浸取溶液的浓度及用量、被测元素的同位素、样品酸度、内标元素、仪器的最佳工作参数进行了选择，建立了优化分析条件.单一元素标准加入的回收率为95%～105%，离子相稀土总量回收率为98.4%，相对标准偏差小于5%，测定范围为：0.010%~0.50%.方法准确可靠，操作简单，精密度和准确度都能满足分析要求.
채용전감우합등리자질보법（ICP-MS）직접측정리자형희토원광중리자상희토총량，실험대침취용액、침취용액적농도급용량、피측원소적동위소、양품산도、내표원소、의기적최가공작삼수진행료선택，건립료우화분석조건.단일원소표준가입적회수솔위95%～105%，리자상희토총량회수솔위98.4%，상대표준편차소우5%，측정범위위：0.010%~0.50%.방법준학가고，조작간단，정밀도화준학도도능만족분석요구.
This paper studies the determination method of ionic-phase rare earth quantity in ion-adsorption rare earth ore by ICP-MS. The optimal working parameters of leach solution, leach solution concentration and dosage, measured isotope elements, sample acidity, internal standard elements, instruments are selected by establishing optimized analysis conditions. The recovery rate of a single element standard feeding reaches 95%with ionic-phase rare earth recovery rate 98.4 %. Relative standard deviation is less than 5 % with measuring range between 0.010~0.50 %. The method is accurate and reliable which is simple to operate with its accuracy and precision meeting the requirements of analysis.