摘要
本文采用全自动电位滴定分析仪 ,选择最佳实验条件。由空白样实验测得其检出限可达5 4μg/g ,分别对铀含量为 3 7～ 1 0 0 μg/g的 3种国家标准物质及高含量样品进行了测定 ,测定结果准确 ,相对标准偏差 (RSD % )可控制在 3 %左右。实际样品测定结果表明 ,其与参考值符合得很好。该方法检出限低 ,精密度高 ,操作简单 ,分析速度快 ,测定范围宽 ,是测定铀含量的较理想的方法。
The all-automatic titration analyzer is used to determining uranium in ores.All determinations are performed in optimal conditions.Determination limit obtained by blank experiments reaches 5.4 μg/g.Three state-standard reference samples with uranium content of 37～100 μg/g and samples with high uranium content are analysed respectively.Analytical results are in good accordance with those of reference samples,and RSD%is about 3%.This method is characterized by low determination limit,high precision,easy operation,high speed and wide range of determination being a ideal method for determining uranium content in ore samples.
出处
《铀矿地质》
CAS
CSCD
2004年第3期177-182,共6页
Uranium Geology
关键词
电位滴定
铀
矿石
potentiometric titration
uranium
ores
