摘要
采用过氧化氢，柠檬酸和氨水溶样，电感耦合等离子体发射光谱仪测定三氧化钼中低含量钨。建立了一种方便快捷准确测定三氧化钼中低含量钨的新方法。采用本方法测定实验室样本中钨，与四苯砷氯盐酸盐-硫氰酸盐光度法测定的结果吻合较好，精密度为1．8％-4．4％，加标回收率在97％-110％之间。
In this work, the molybdenum trioxide samples were dissolved by hydrogerI peroxide, citric acid and ammonia and the concentration of tungsten was determined by inductively coupled plasma-optical emission spectrometry. A novel method for the determination of tungsten in molybdenum trioxide by inductively coupled plasma-optical emission spectrometry was developed. Results of tungsten were in agreement with the val- ues which obtained by tetra-arsenic chloride hydrochloride- thiocyanate spectrophotometry method. The relative standard deviation （RSD） was 1.8% - 4. 4% , and the recoveries were in the range of 97% - 110%.
出处
《化学试剂》
CAS
CSCD
北大核心
2014年第4期337-339,共3页
Chemical Reagents
基金
国家质检总局科技计划项目(2013QK186)
关键词
电感耦合等离子体发射光谱法
三氧化钼
钨
inductively coupled plasma-optical emissionspectrometry
molybdenum trioxide
tungsten
