胡琴, 张光. 在丙酮介质中2-(4,5-二甲基-2-噻唑偶氮)-5-二甲氨基苯甲酸光度法测定微量钯的研究[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 1994, (2).DOI:
A sensitive photometric method for the determination of Pd (Ⅱ) with 2-(4
5-dimethyl-2-thiazolylazo)-5-dimethylaminobenzoic acid (DMTAMB ) has been studied. The experimental results indicate that in the presence of acetone at pH3.6 ̄4.8
Pd (Ⅱ) reacts with DMTAMB to form a stable blue-green 1: 1 complex with apparent molar absoptivity of 7.2×104 L·mol 1·cm 1 at 704 nm. Beer's law is obeyed in the range of 0 ̄30μg/25ml for Pd(Ⅱ). This method has been applied to the determination of Pd(Ⅱ) in samples containing Pd with satisfactory results.