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The determination of vanadium in brines by atomic absorption spectroscopy

Hans J. Crump-Wiesner·H.R. Feltz·W.C. Purdy
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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.

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Hans J. Crump-Wiesner, H.R. Feltz, W.C. Purdy. 1971. The determination of vanadium in brines by atomic absorption spectroscopy. https://doi.org/10.1016/s0003-2670(01)82737-9

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