释放剂对火焰原子吸收法测定铑的影响  

Effects of Releasing Agent on Determination of Rhodium by Flame Atomic Absorption Spectrometry

作　　者：王芝元[1,2] 李耀威[1,2] 黎志刚 杨明珠[1,2] 

机构地区：[1]华南师范大学化学与环境学院 [2]环境理论化学省部共建教育部重点实验室,广东广州510006

出　　处：《华南师范大学学报（自然科学版）》2013年第5期78-82,共5页Journal of South China Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(21006037)

摘　　要：采用火焰原子吸收法（FAAS）对溶液中铑（Rh）的含量进行分析，结果表明，选用CuSO4-LaCl3体系作为释放剂，能有效提高测定铑的灵敏度，消除常见无机酸和多种共存金属离子的干扰，实验量为每5mLRh溶液加入5mg／mLCuSO4和5mg／mL LaCl3各1mL，加标回收率在99．85％-105．05％之间，释放剂添加量少，操作简便、快速、可靠．The content of rhodium in solution was determined by the flame atomic absorption spectrometry method. This article studied different factors that influenced the determination of rhodium, including releasing agent, inorganic acid and coexistence metal ions. The result showed that the determination sensitivity of rhodium can be increased and the interference of inorganic acid and coexistence metal ions disappeared by adding CuSO4-LaCl3 as releasing agent. The experiments indicated that the adding amount for 5 mL rhodium solution was 1 mL each of CuSO4and LaCl3 solutions （the concentrations were both 5 mg/mL）. The recovery of standard addition ranged from 99.85% to 105.05%. The adding quantity of releasing agent in this paper is less than others. The method is simple, rapid and accurate.

关 键 词：释放剂 火焰原子吸收法 铑 测定 

分 类 号：TF837[冶金工程—有色金属冶金] X132[环境科学与工程—环境科学]