钛合金中铜铁连续测定方法的研究  

Titanium Alloy of Copper and Iron Determination of Continuous

作　　者：邱会东[1] 

机构地区：[1]重庆科技学院化学化工学院,重庆401331

出　　处：《四川有色金属》2011年第1期37-39,共3页Sichuan Nonferrous Metals

基　　金：重庆市科委自然科学基金项目(CSTC2008BB7359)

摘　　要：建立钛合金中的铜、铁元素含量同时测定方法。在酸性体系中,铜和铁与亚硝基R盐分别形成黄绿色络合物,其在λmax（Fe）=720nm,λmax（Cu）=450nm,铜、铁络合物的摩尔吸光系数分别为1.1×104L.mol-1.cm-1,0.7×104L.mol-1.cm-1。用分光光度法测定钛合金中铜、铁的含量结果表明,溶液在10~600μg/50mL铜离子和5~800μg/50mL铁离子之间与吸光度线性关系良好,回收率均在95%以上,稳定性好。用微波消解系统溶解样品结合分光光度法测定钛合金中铜、铁方法简便,准确度和精密度均能满足分析要求。To establish method for determination of the copper and iron in titanium alloy.The reaction between copper and iron with nitroso-R-salt took place in acid water solution.The maxium absorption of the complex were at 450 nm of copper and 720nm of iron.The apparent molar absorptivity of complex was 1.1×104L·mol-1·cm-1、0.7×104L·mol-1·cm-1.In spectrophotometry Beer＇s law was obeyed within the range of 10~600μg /50mL of copper and 5~800μg/50mL of iron,the recovery was 95%.The spectrophotometry is simple,rapid and reproducible,and the results are reliable and accurate.

关 键 词：钛合金 铜 铁 亚硝基R盐 分光光度法 

分 类 号：O657.32[理学—分析化学]