分光光度法测定生物浸矿培养基中的钼含量  

Spectrophotometric Determination of Molybdenum in Bioleaching Medium

作　　者：李圆原[1] 邱丽娜[1] 弓爱君[1] 王子佳[1] 闫海[1] 苑海涛[1] 

机构地区：[1]北京科技大学应用科学学院生物科学与技术系,北京100083

出　　处：《金属世界》2009年第5期44-47,共4页Metal World

基　　金：国家科技基础条件平台建设项目(2005DKA10400);北京市教委产学研项目支持

摘　　要：用硫脲作还原剂,在酸性溶液中将钼(Ⅵ)还原为钼(Ⅴ),后者与硫氰酸盐形成橙红色络合物,并用722型分光光度计比色,建立钼浓度与吸光度的关系曲线。本文确定了生物浸矿常用培养基(9K培养基)中钼的硫氰酸盐分光光度法测定最佳条件,克服铁离子的干扰,为钼矿生物湿法冶金浸出液中钼含量的检测奠定了基础。With thiourea for reducing agent, Mo （VI） is reduced to Mo （V） in acidic solution, then Mo （V） and thiocyanate come into orange red complex compound. The relationship curve between molybdenum concentration and absorbency is determined by 722-type spectrophotometer. In bio-leaching commonly used medium （9K medium）, it is identified the best conditions of determination of Mo by using thiocyanate. This method is come over the interference of iron, and has laid a certain foundation for bioleaching of molybdenum mine.

关 键 词：钼 分光光度法 硫氰酸盐 测定 生物浸出 

分 类 号：TF111.3[冶金工程—冶金物理化学]