The determination of vanadium in brines by atomic absorption spectroscopy

Analytica Chimica Acta
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Abstract

A standard addition method is described for the determination of vanadium in brines by atomic absorption spectroscopy with a nitrous oxide-acetylene flame. Sample pH is adjusted to 1.0 with concentrated hydrochloric acid and the vanadium is directly extracted with 5% cupferron in methyl isobutyl ketone (MIBK). The ketone layer is then aspirated into the flame and the recorded absorption values are plotted as a function of the concentration of the added metal. As little as 2.5 μg l−1 of vanadium can be detected under the conditions of the procedure. Tungsten and tin interfere when present in excess of 5 and 10 μg ml−1, respectively. The concentrations of the two interfering ions normally found in brines are well below interference levels.


Publication type Article
Publication Subtype Journal Article
Title The determination of vanadium in brines by atomic absorption spectroscopy
Series title Analytica Chimica Acta
DOI 10.1016/S0003-2670(01)82737-9
Volume 55
Issue 1
Year Published 1971
Language English
Publisher Elsevier
Description 8 p.
First page 29
Last page 36
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