Extraction-spectrophotometric determination of cadmium in micro quantitieswith diphenylcarbazone

Authors
Das, HK Das Purkayastha, G
Citation
Hk. Das et G. Das Purkayastha, Extraction-spectrophotometric determination of cadmium in micro quantitieswith diphenylcarbazone, J INDIAN CH, 78(6), 2001, pp. 323-324
Citations number
6
Categorie Soggetti
Chemistry
Journal title
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
ISSN journal
00194522 → ACNP
Volume
78
Issue
6
Year of publication
2001
Pages
323 - 324
Database
ISI
SICI code
0019-4522(200106)78:6<323:EDOCIM>2.0.ZU;2-4
Abstract
A simple and sensitive extractive spectrophotometric method for determinati on of cadmium is described. In presence of pyridine, cadmium forms a red co loured complex with diphenylcarbazone which is extractable in benzene. The extracted species has an absorption maximum at 533 nm and obeys Beer's law for 0.228-3.65 ppm of Cd, the molar absorptivity being 7.33 x 10(4) dm(3) m ol(-1) cm(-1). Conditions for colour development and interferences from for eign ions have been studied.