摘要
本文研究了在混合表面活性剂增溶下,于pH2.8的HCOOH-HCOONa的缓冲介质中,利用PAQ与Pd(Ⅱ)形成有色配合物进行分光光度测定。该法简便、快速,可不经萃取分离,直接用于钯催化剂和钯废水中钯的测定。
A method for the spectrophotometric determination of palladium with 5-phenylazo-8-am-inoquinoline( PAQ ) has been developed. In the presence of mixed surfactants TritonX-100-CT-MAB, in the medium of HCOOH-HCOONa buffer ( pH2.6-3.2 ) . PAQ reacts with pallatium ions to form a blue green colour complex>exhibiting a maximum absorbance at S90nm. Its apparent molar absorptivity is found to be 4.3xl04.The molar ratio of pallatium complex has been estimated as PbsPAQ=l:2 by the methods of molar ratio and continuous variation. The method has been applied for determining palladium content in Pd containing catalysts and waters.
出处
《冶金分析》
CAS
CSCD
北大核心
1990年第5期14-16,共3页
Metallurgical Analysis
