EXTRACTION-PHOTOMETRIC DETERMINATION OF MOLYBDENUM WITH THIAZOLYL BLUE

Authors
KAMBUROVA M ALEKSANDROV A
Citation
M. Kamburova et A. Aleksandrov, EXTRACTION-PHOTOMETRIC DETERMINATION OF MOLYBDENUM WITH THIAZOLYL BLUE, Journal of analytical chemistry, 53(6), 1998, pp. 517-519
Citations number
16
Categorie Soggetti
Chemistry Analytical
Journal title
Journal of analytical chemistry → ACNP
ISSN journal
10619348
Volume
53
Issue
6
Year of publication
1998
Pages
517 - 519
Database
ISI
SICI code
1061-9348(1998)53:6<517:EDOMWT>2.0.ZU;2-D
Abstract
A procedure was developed for the extraction-photometric determination of molybdenum as its ternary complex with SNC- ions and Thiazolyn Blu e. The complex forms in a 0.9 M H2SO4 solution and is extracted with d ichloroethane. It is characterized by a light absorption maximum at 47 0 nm with a molar absorptivity of 5.7 x 10(4). Ascorbic acid is the be st agent for reducing Mo(VI) to Mo(V). The procedure is used for deter mining molybdenum in lettuce.