双波长分光光度法同时测定微量钛和铁-H_2O_2-5-Br-PADAP-乳化剂OP体系  

DUAL WAVELENGTH SPECTROPHOTOMETRIC DETERMINATION OF TITANIUM AND IRON—H_2O_2-5-Br-PADAP-OP SYSTEM

作　　者：陈亚华[1] 韩秀丽[2] 

机构地区：[1]郑州大学化学系 [2]郑州磨料磨具磨削研究所

出　　处：《郑州大学学报（自然科学版）》1991年第2期88-92,共5页Journal of Zhengzhou University (Natural Science)

摘　　要：本文提出用H_2O_2—5一Br—PADAP—乳化剂OP体系以进行双波长分光光度法同时测定钛和铁的方法,其线性范围均为1—15μg/25ml,应用于白泥中钛、铁的同时测定,结果满意。A new method is described for simultaneous determination titanium and iron using the dual wavelength spectrophotometry with H_2O_2-5-Br-PADAP-emulsifier op system. In a medium of HAC--NaAc at pH 4～4.5, the absorption spectra of complexes of titanium and iron are overlaped each other. The measuring wavelength and the reference wavelength are 540. Onm and 604. 5nm for Ti, 592. Onm and 513. 8nm for Fe. The calibration curves are linear in the range 1—15 μg/25ml for Ti and Fe. This method can be applied to the simultaneous determination of Ti and Fe in white slime.

关 键 词：钛 铁 分光光度法 测定 5-BR-PADAP 

分 类 号：O657.32[理学—分析化学]