SOLVENT-EXTRACTION, SPECTROPHOTOMETRIC AND INDUCTIVELY-COUPLED PLASMA-ATOMIC EMISSION SPECTROSCOPIC (ICP-AES) DETERMINATION OF VANADIUM(V) WITH CROWN HYDROXAMIC ACID

Authors
SHRIVASTAV P AGRAWAL YK
Citation
P. Shrivastav et Yk. Agrawal, SOLVENT-EXTRACTION, SPECTROPHOTOMETRIC AND INDUCTIVELY-COUPLED PLASMA-ATOMIC EMISSION SPECTROSCOPIC (ICP-AES) DETERMINATION OF VANADIUM(V) WITH CROWN HYDROXAMIC ACID, Analusis, 24(1), 1996, pp. 13-16
Citations number
15
Categorie Soggetti
Chemistry Analytical
Journal title
Analusis → ACNP
ISSN journal
03654877
Volume
24
Issue
1
Year of publication
1996
Pages
13 - 16
Database
ISI
SICI code
0365-4877(1996)24:1<13:SSAIP>2.0.ZU;2-7
Abstract
A new crown hydroxamic acid (NHDTAHA) is used for the extraction and s pectrophotometric determination of vanadium (V). The molar absorptivit y is 2.5 x 10(4) 1 mol(-1) cm(-1) at 395 nm and the system obeys Beer' s law over the range 0.05-3.0 ppm of vanadium. For ICP-AES measurement s, the extract can be directly aspirated, which enhances the sensitivi ty 25-fold and the limits for estimation are 2-120 ppb of vanadium. Va nadium has been determined in ores, steel, environmental and biologica l samples.