The determination of vanadium in brines by atomic absorption spectroscopy
Analytica Chimica Acta
By: Hans J. Crump-Wiesner, H.R. Feltz, and 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.
| 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 |