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Extract-photometric determination of vanadium(V) with 3-indole-acetohydroxamic acid
- Source :
- Fresenius' Journal of Analytical Chemistry; March 1991, Vol. 340 Issue: 3 p169-172, 4p
- Publication Year :
- 1991
-
Abstract
- A spectrophotometric study has been carried out of the violet complex 3-indole-acetohydroxamic acid-vanadium extracted into a solution of trioctylmethyl-ammonium chloride in toluene [?<subscript>max</subscript> 525 nm; e=5381 l mol<superscript>-1</superscript> cm<superscript>-1</superscript>; stoichiometry 1:3 (metal:reagent)]. A new method for the extract-spectrophotometric determination of V<superscript>5+</superscript> in the range of 2–7 µg/g is proposed and interferences by foreign ions were investigated. The method has been satisfactorily applied to the determination of vanadium(V) in fuel oil. The relative error is ±2.9%.
Details
- Language :
- English
- ISSN :
- 09370633 and 14321130
- Volume :
- 340
- Issue :
- 3
- Database :
- Supplemental Index
- Journal :
- Fresenius' Journal of Analytical Chemistry
- Publication Type :
- Periodical
- Accession number :
- ejs16864424
- Full Text :
- https://doi.org/10.1007/BF00324475