计算光度法同时测定锗和锡  

Simultaneous Determination of Ge and Sn by Calculating Spectrophotometry

作　　者：冯月斌[1] 张锦柱[1] 温彬宇[1] 

机构地区：[1]昆明理工大学理学院分化室,云南昆明650093

出　　处：《云南冶金》2005年第1期52-53,共2页Yunnan Metallurgy

基　　金：昆明理工大学校青年基金资助项目(项目编号:14051024)

摘　　要：用6mol/L的盐酸控制溶液的酸度,在十二烷基磺酸钠的存在下,锗和锡均与苯芴酮发生高灵敏显色反应,生成稳定的三元络合物,最大吸收波长分别为510nm和514nm,吸收光谱严重重叠。利用主成分回归算法无须分离可同时测定锗和锡,研究了测定的最佳条件,通过对模拟样的测定验证了该方法的可行性。Ge(Ⅱ)and Sn(Ⅳ)react sensitively with phenyfluorine in the presence of CTMAB and 1:1 HCL and result in formation of stable ternary complexes.Their λ_(max) are 510 nm and 514 nm respectively,showing the seriously overlapped absorption spectra.The principle component regression was applied for simultaneous determination of trace Ge and Sn.The conditions of simultaneous determination were investigated and the simulated samples were analyzed by the proposed method and satisfied results were obtained.

关 键 词：主成分回归 锗和锡 分光光度法 

分 类 号：O65[理学—分析化学]