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硫氰酸盐分光光度法测定钼精矿的含钼量
Thiocyanate Spectrophotometric Determination of the Molybdenum Content in Molybdenum Concentrate
【摘要】 以硫脲为还原剂,在优化钼(Ⅴ)与硫氰酸盐显色反应条件的基础上,通过分光光度法测定钼精矿中的钼含量。结果表明,本法测定钼精矿含钼量的相对标准偏差小于5%(n=6),加标回收率为98.34%~100.30%,置信区间窄,准确度高。
【Abstract】 Based on the optimized conditions for the chromogenic reaction between Mo(Ⅴ)and thiocyanate,the Mo content of molybdenum concentrate was determined by spectrophotometry with sulfocarbamide as the reducer.The as-tested Mo content in the Mo concentrate is less than 5%(n=6),standardized recovery is in the range of 98.34%~100.30%.The said method is characterized by narrow confidence interval and high accuracy.
【关键词】 钼测定;
分光光度法;
硫氰酸盐;
硫脲;
钼精矿;
【Key words】 molybdenum determination; spectrophotometry; thiocyanate; sulfocarbamide; molybdenum concentrate;
【Key words】 molybdenum determination; spectrophotometry; thiocyanate; sulfocarbamide; molybdenum concentrate;
【基金】 辽宁省创新团队项目基金资助(2008T064)
- 【文献出处】 稀有金属与硬质合金 ,Rare Metals and Cemented Carbides , 编辑部邮箱 ,2010年04期
- 【分类号】P575
- 【被引频次】17
- 【下载频次】319