Title

Determination of Dissolved Vanadium in Natural Waters by Flow Injection Analysis with Colorimetric Detection

Document Type

Article

Publication Date

5-1-1998

Department

Marine Science

Abstract

A flow injection technique for the determination of dissolved vanadium in natural waters has been developed. The technique utilizes the vanadium-catalyzed oxidation of Bindschedler's green leuco base by bromate with tiron and tartrate as reaction activators. The reaction product is quanti fled colorimetrically. A chelator column of immobilized 8-hydroxyquinoline reduces matrix effects but can be eliminated if samples with a constant matrix are being analyzed. By using the chelator column, 1 ml of sample can be analyzed in <10 min with a detection limit of 0.2 nM. The method has been used successfully for the determination of dissolved vanadium in river and estuarine waters.

Publication Title

Limnology and Oceanography

Volume

43

Issue

3

First Page

526

Last Page

529