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Updated: Jun 28, 2026

Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles
Published on: June 25, 2018
Spectrophotometric determination of palladium with sulfochlorophenolazorhodanine by flow injection
P M Shiundu1, P D Wentzell, A P Wade
1Laboratory for Automated Chemical Analysis, Department of Chemistry, University of British Columbia, Vancouver, B.C., Canada V6T 1Y6.
Abstract:
Sulfochlorophenolazorhodanine (as its sodium salt) has been used in the automated development of a sensitive flow-injection procedure for the spectrophotometric determination of palladium. The resulting method has high sample throughput, good precision, and low consumption of both sample and reagents. The optimum pH for the reaction is 5.0 and the response is constant at pH between 4.7 and 5.3. The sensitivity (calibration slope) of the procedure is 4.4 x 10(3) l./mole. The linear dynamic range is 0.045-30.0 mug/ml. The sample throughput is at least 120/hr. An automated procedure for optimization of analytical variables is described and a two-variable response surface for the system is given. Interference studies on 19 metal ions show that the method has good selectivity.
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