A HIGHLY SENSITIVE AND SELECTIVE CATALYTIC OSCILLOPOLAROGRAPHIC METHOD FOR THE DETERMINATION OF ULTRATRACE AMOUNTS OF MOLYBDENUM

Authors
JIANG ZL DAI GZ
Citation
Zl. Jiang et Gz. Dai, A HIGHLY SENSITIVE AND SELECTIVE CATALYTIC OSCILLOPOLAROGRAPHIC METHOD FOR THE DETERMINATION OF ULTRATRACE AMOUNTS OF MOLYBDENUM, Electroanalysis, 5(4), 1993, pp. 349-353
Citations number
25
Categorie Soggetti
Chemistry Analytical
Journal title
Electroanalysis → ACNP
ISSN journal
10400397
Volume
5
Issue
4
Year of publication
1993
Pages
349 - 353
Database
ISI
SICI code
1040-0397(1993)5:4<349:AHSASC>2.0.ZU;2-E
Abstract
A very sensitive and selective single-sweep oscillopolarographic metho d has been developed for determining trace molybdenum down to 0.06 ng/ ml. In the presence of 0.040M mandelic acid-0.10% OP emulsifier-0.10M potassium chlorate-1.0M sulfuric acid Mo(VI) exhibits a very sensitive and sharp polarographic catalytic adsorptive wave at -0.10 V (vs. SCE ). The oscillopolarographic behavior and the influence of foreign ions were studied. Molybdenum in human hair, ore, and steel samples were a nalyzed by this method, and excellent results were obtained.