1-[2,3,5-三氮唑偶氮]-5-甲基-2-苯酚的合成及其与钴的显色反应  

Synthesis of 1-[2,3,5-[triazolyazo]-5-methyl-2-phenol and its color reaction with cobalt

作　　者：叶巧云[1] 蒋华江[1] 韩得满[1] 

机构地区：[1]浙江台州师范专科学校,浙江台州317000

出　　处：《冶金分析》2002年第2期12-13,5,共3页Metallurgical Analysis

基　　金：浙江省教育委员会科研启动基金资助课题 (972 0 1)

摘　　要：合成了 1 [2 ,3 ,5 三氮唑偶氮 ] 5 甲基 2 苯酚 (简称TZAMP) ,并研究了其与钴的显色反应。结果表明 :在 pH5～ 6的邻苯二甲酸氢钾 氢氧化钠缓冲介质中 ,该试剂与钴形成络合比为 1∶1的红色络合物 ,λmax=5 90 6nm ,表观摩尔吸光系数ε=2 5 8× 10 4 ,钴量在 0～ 1 6mg/L范围内遵守比尔定律。The synthesis of a new color reagent 1 [2,3,5 [triazolyazo] 5 methyl 2 phenol(TZAMP)and its color reaction with cobalt have been studied The results show that cobalt reacts with TZAMP to form a stable red complex in aqueous solution at pH5 5,λ max =590 6nm The apparent molar absorptivity ε=2 58×10 4 L·mol -1 ·cm -1 . Beer′s low is obeyed in the range of 0-1 6mg/L for cobalt The molar ratio of cobalt to TZAMP in the complex is 1∶1 The proposed method has been applied to the determination of cobalt in sample with satisfactory results

关 键 词：1-[2 3 5-三氮唑偶氮]-5-甲基-2-苯酚 合成 钴 显色反应 分光光度法 

分 类 号：O657.3[理学—分析化学]