酸溶-ICP-OES法测定钨精矿中钨、钼含量OA
Determination of tungsten and molybdenum content in tungsten concentrate by acid digestion-ICP-OES
本文重点介绍了钨精矿中钨、钼含量的测定方法.钨精矿试样用硫酸和磷酸混合液溶解,形成稳定的可溶性钨、钼及其他元素的溶液,随后采用电感耦合等离子体发射光谱法(ICP-OES)技术进行检测,该技术根据其特征光谱准确测定钨、钼的含量,结果表明:待测溶液在5%盐酸-0.2 g/L 酒石酸-1%磷酸体系中测定钨、钼含量,相对标准偏差(RSD,n=11)0.22%～4.4%、加标回收率 97.6%～100.7%,测定范围钨 0.039～150.00 μg/mL、钼0.009～20.00 μg/mL.此方法操作简便快捷,成本低廉,材料消耗少,适用于测定钨精矿中钨、钼含量.
This paper focuses on the method for determining tungsten and molybdenum content in tungsten concentrate.The tungsten concentrate sample is dissolved using a mixed solution of sulfuric acid and phosphoric acid to form a stable solution containing soluble tungsten,molybdenum,and other elements.Subsequently,inductively coupled plasma optical emission spectrometry(ICP-OES)is employed for detection,accurately determining the tungsten and molybdenum content based on their characteristic spectra.The results indicate that the tungsten and molybdenum content in the test solution is measured in a system of 5%hydrochloric acid-0.2 g/L tartaric acid-1%phosphoric acid,with relative standard deviations(RSD,n=11)ranging from 0.22%to 4.4%and spiked recoveries be-tween 97.6%and 100.7%.The determination ranges are 0.039～150.00 μg/mL for tungsten and 0.009～20.00 μg/mL for molybde-num.This method is simple,rapid,cost-effective,and consumes minimal materials,making it suitable for determining tungsten and molybdenum content in tungsten concentrate.
李杰阳
云南锡业股份有限公司卡房分公司,云南 个旧 661000
化学化工
电感耦合等离子体原子发射光谱法测定钨精矿钨钼
inductively coupled plasma optical emission spectrometrydeterminationtungsten concentratetungstenmolybdenum
《中国钼业》 2026 (2)
76-82,7
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