摘要
研究了火焰原子吸收光谱仪连续测定钨精矿中钡、锶含量的方法。试样经碳酸钠—过氧化钠熔融,熔融物用硝酸溶液提取,在仪器最佳工作条件下,快速、准确地连续测定钨精矿中钡、锶含量。实验表明该方法操作简便,灵敏度高,干扰少,钡的回收率为94.2%～96.3%;锶的回收率为94.0%～102.5%。
This paper studies the continuous determination of barium and strontium in tungsten concentrates by flame atomic absorption spectrometry. The tungsten concentrates is melted with sodium carbonate ＆ sodium peroxide and the Ba and Sr are extracted with nitric acid. The optimum detection parameters are decided respectively. The results indicate this method, with the recovery of Ba ＆ Sr were 94.2 %-96.3 % ＆ 94 %-102.5 % respectively, is characterized by high sensitivity, hizh accuracy, low interference, and easy operation.
出处
《中国钨业》
CAS
2012年第6期34-36,共3页
China Tungsten Industry
关键词
火焰原子吸收
钨精矿
钡
锶
连续测定
F-AAS
tungsten concentrates
barium
strontium
continuous determination
