一种新型噻唑偶氮类金属离子显色剂的合成及性能

合成了2 (4,5 二甲基 2 噻唑偶氮) 4 甲基 5 磺酸丙基氨基苯甲酸(DMTAMSOB),研究了该试剂与Cu2+、Ni2+、Co2+离子的显色反应.实验结果显示Cu2+、Ni2+、Co2+分别在628nm、590nm、583nm处有最大吸收,其摩尔吸光系数(ε)分别为8.4×104,5.8×104,4.8×104,表明DMTAMSOB是上述离子较好的分光光度分析显色剂.

Synthesis and Property of a New Metal Ions Chromogenic Reagent of Thiazolylazo

Synthesized 2-(4,5-dimethyl-2-thiazoleazo)-4-methyl-5-sulfopropylaminobenzoic acid. Studied its chromogenic property with Cu~(2+),Ni~(2+),Co~(2+). Results show that it can form stable compounds with Cu~(2+),Ni~(2+),Co~(2+). The maximum absorptions of these compounds are at 628 nm,590 nm,583 nm, and their mole absorptivities (ε)are 8.4×10~4 , 5.8×10~4 and 4.8×10~4,respectively.Results also show that this material can be used as a good spectrophotometric chromogenic agent for some metal ions.