Turkish Journal of Chemistry
DOI
-
Abstract
A new chromogenic reagent, 2-(2-quinolylazo)-5-dimethylaminoaniline (QADMAA) was synthesized. A sensitive, selective and rapid method for the determination of palladium based on the rapid reaction of palladium(II) with QADMAA was developed. In the presence of 0.5-2.5 mol L^{-1} of hydrochloric acid solution and cetyl trimethylammonium bromide medium QADMAA reacts with palladium to form a violet complex with a molar ratio of 1:2 (palladium to QADMAA). The molar absorptivity of the chelate is 1.35x10^5 L mol^{-1} cm^{-1} at 600 nm. Beer's law is obeyed in the range of 0.01 to 0.6 \mu g mL^{-1}. The detection limit is 1.2 \mu g L^{-1}. This method has been applied to the determination of palladium with good results.
Keywords
2-(2-quinolylazo)-5-dimethylaminoaniline, palladium, spectrophotometry
First Page
135
Last Page
140
Recommended Citation
SI, YUNSEN; HU, QIUFEN; HUANG, ZHANGJIE; YANG, GUANGYU; and YIN, JIAYUAN (2005) "Color Reaction of 2-(2-Quinolylazo)-5-Dimethylaminoaniline with Palladium and Its Application," Turkish Journal of Chemistry: Vol. 29: No. 2, Article 3. Available at: https://journals.tubitak.gov.tr/chem/vol29/iss2/3
