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Extraction-spectrophotometric determination of traces of palladium by reaction between zinc(II) dibenzyldithiocarbamate and palladium(II)/2-(5-bromo-2-pyridylazo)-5-diethylaminophenol

Authors
Journal
Analytica Chimica Acta
0003-2670
Publisher
Elsevier
Publication Date
Volume
207
Identifiers
DOI: 10.1016/s0003-2670(00)80817-x

Abstract

Abstract The simple and highly sensitive determination of palladium is based on the reaction between Pd(II)/5-Br-PADAP and Zn(II) DBDTC complexes in 1,2-dichloroethane or toluene at pH 9.7. At 530 nm, the molar absorptivity is about 0.8 × 10 5 l mol −1 cm −1. Beer's law is obeyed in the concentration range 0.1–1.2 μg ml −1 Pd. Relative standard deviations are 2–5%. Metal ions reacting with either of the organic reagents interfere.

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