溶液中钼的快速测定  

Rapid Determination of Molybdenum in Solution

作　　者：贾丽娟[1] 钟宏[1] 符剑刚[1] 

机构地区：[1]中南大学化学化工学院,湖南长沙410083

出　　处：《稀有金属与硬质合金》2007年第3期34-37,共4页Rare Metals and Cemented Carbides

摘　　要：采用光谱纯MoO3来配置标准钼溶液,然后利用硫氰酸盐分光光度比色法测得钼浓度与吸光度的关系曲线:c=0.397 2×A。利用该关系式对钼冶金生产中浸出液的钼含量进行了分析测定,并通过对浸出渣中钼含量的分析测定来校核,结果显示两者具有良好的一致性,其相对标准误差为0.34%。此外,用同样方法和操作步骤对某冶炼厂废水中的钼含量进行了测定和校核,两者的结果也能较好吻合,其相对误差为0.29%。Standard solution is prepared with spectral-pure molybdenum trioxide. The relationship curve between molybdenum concentration and absorbency is determined by Thiocyanate spectro-photometrical colorimetry.c= 0. 397 2×A,which is used to analyze molybdenum content in leach solution. And verification is done through the testing of Mo content in the leach able, the relative standard error is O. 34 %. Meanwhile termined with the same method and operating steps. standard error is O. 29 %. residue. The results showed both are well conform able,the relative standard error is 0.34%. Meanwhile Mo content in the waste water from a smelter is determined with the same method and operating steps. The results are also well conformable, the relative standard error is 0. 29 %.

关 键 词：钼浓度 快速测定 吸光度 标准曲线 硫氰酸盐 

分 类 号：O657.32[理学—分析化学]