固体火箭技术2012，Vol.35Issue(5)：707-710,4.
硫氰酸盐光度法测定三氧化钼中钼含量
Determination of molybdenum of molybdenum trioxide by spectrophotometry with thiourea
赵志刚 1刘治国 1何峻荣 1程福银1
作者信息
- 1. 中国航天科技集团公司四院四十二所分析测试中心,襄阳441003
- 折叠
摘要
Abstract
A spectrophotometric method for determination of molybdenum in molybdenum trioxide with potassium thiocyanate was studied in the present of potassium thiocyanate as a depressant and thiourea as a reductant. Sample was dissolved in sodium hy-droxide(l mol/L). After adding cuprum sulphate and sulfuric acid, Mo(VI) in the solution is reduced to Mo( V ) by thiourea. Mo forms an orange complex with potassium thiocyanate, which can be measured at wavelength of 460 nm. RSD of the method is 0. 44% . When the added amount of standard matter is close to that of sample, the recovery rate of molybdenum is in the range of 98. 5% ～99.7%.关键词
分光光度法/三氧化钼/硫氰酸盐/硫脲Key words
spectrophotometric method/ molybdenum trioxide/ thiocyanate/ thiourea分类
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赵志刚,刘治国,何峻荣,程福银..硫氰酸盐光度法测定三氧化钼中钼含量[J].固体火箭技术,2012,35(5):707-710,4.
