【摘要】 本文介绍在0.4～1.4M H₂SO₄介质中,利用Pd与TAEB形成的有色络合物进行分光光度测定,所研究的方法已成功地用于Pd—Mo催化剂的分析。更多还原

【Abstract】 A method for the spectrophotometric determination of palladium using 2-(2-thoiazolylazo)-5-diethylaminobenzoic acid (TAEB)has been developed. In a sulphuric acid medium(0.4-1.4M H2SO4) TAEB reacts with palladium ions to form a green-blue colour complex, exhibiting a maximum absorbance at 685nm. Its apparent molar absorptivity is found to be 4.2×104. The molar ratio of palladium complex has been estimated as Pd:TAEB =1:1 by the method of isomlar contineous. variation. The most part of metal ions,including noble metal ions, did not interfere with the determination of palladium. The proposed method has been used for the determination of palladium in -Pd-Mo catalysts with satisfactory results.更多还原