高效液相色谱──高灵敏催化光度法测定钛  

Highly Sensitive Catalytic Determination of Ti with HPLC Detection

作　　者：覃诚真[1] 蒋若舟[1] 莫琪[1] 蒋治良[1] 

机构地区：[1]广西师范大学

出　　处：《广西科学》1996年第4期9-11,共3页Guangxi Sciences

摘　　要：在１００℃稀硝酸介质中及活化剂联吡啶存在条件下，痕量钛（Ⅳ）对过氧化氢氧化甲基橙褪色这一缓慢反应具有很强的催化作用。用自来水冷却中止反应，采用高效液相色谱检测甲基橙浓度的变化，建立了一个测定０．８ｎｇ／ｍＬ～６０ｎｇ／ｍＬ钛的高效液相色谱新方法，并用于试样分析。Under the conditions of 0. 03 mol/L HNO3-5. 0×10-4 mol/L 2, 2'-bipyridine (as an activator) at 100℃, Ti (IV) had strong catalytic effect on the decolour reaction between methyl orange and H2O2. The UV-detector for HPLC was chosen to monitor the changes in concentration of methyl orange in the reaction system.A novel catalytic reaction-HPLC method for the determination of 0. 8ng/mL￣60ng/mL Ti was described by the fixed-reaction time procedure.Titanium in human hair samples was analysed with good results.

关 键 词：高效液相色谱 钛 催化光度法 测定 

分 类 号：O614.411[理学—无机化学]