Determination of dissolved vanadium in natural waters by flow injection analysis with colorimetric detection
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.
LIMNOLOGY AND OCEANOGRAPHY
(1998). Determination of dissolved vanadium in natural waters by flow injection analysis with colorimetric detection. LIMNOLOGY AND OCEANOGRAPHY, 43(3), 526-529.
Available at: http://aquila.usm.edu/fac_pubs/4992