DETERMINATION OF VANADIUM IN CLAM TISSUE (CITTEREA SP) BY NORMAL-PHASE HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY WITH N-PHENYLBENZOHYDROXAMIC ACID

Authors
BAGUR G SANCHEZ M GAZQUEZ D
Citation
G. Bagur et al., DETERMINATION OF VANADIUM IN CLAM TISSUE (CITTEREA SP) BY NORMAL-PHASE HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY WITH N-PHENYLBENZOHYDROXAMIC ACID, Analyst, 119(6), 1994, pp. 1157-1159
Citations number
17
Categorie Soggetti
Chemistry Analytical
Journal title
Analyst → ACNP
ISSN journal
00032654
Volume
119
Issue
6
Year of publication
1994
Pages
1157 - 1159
Database
ISI
SICI code
0003-2654(1994)119:6<1157:DOVICT>2.0.ZU;2-Z
Abstract
A normal-phase high-performance liquid chromatography (HPLC) method fo r the selective determination of vanadium with N-phenylbenzohydroxamic acid (PBHA) is described. The V-v-PBHA complex was preconcentrated by solvent extraction into trichloromethane and injected on to a silica gel column for HPLC, with a mobile phase of methanol-trichloromethane (3 + 97) containing 9.4 X 10(-4) mol dm(-3) PBHA. The detection limit for vanadium by the proposed method was 8.3 and 1.7 mu g dm(-3) for ph ase-volume ratios of 5:1 and 20:1 (aqueous-to-organic), respectively. Vanadium has been determined in clam tissue with satisfactory precisio n.