Studies on Pollutants. VIII. Trace Analysis of Vanadium with N-p-Methoxyphenyl-2-furohydroxamic Acid
- 1 October 1980
- journal article
- research article
- Published by Taylor & Francis in Separation Science and Technology
- Vol. 15 (9) , 1679-1684
- https://doi.org/10.1080/01496398008055613
Abstract
A highly sensitive, selective and rapid method for spectrophotometric determination of trace amounts of vanadium (V) was described. V was extracted from 4-8 M HCl solutions as its violet complex with N-p-methoxyphenyl-2-furohydroxamic acid (MFHA) in chloroform. The extract showed maximum absorbance at 545 nm (E = 7.3 .times. 103 l/mol.cntdot.cm-1) and obeyed Beer''s law over the range 0-12 ppm of V, Sandell''s sensitivity being 0.007 .mu.g/cm2. The method was used for analysis of V in pond water, rock phosphates and steels.This publication has 3 references indexed in Scilit:
- Use of N-2-Thiophenecarbonyl-N-p-tolylhydroxylamine and N-2-Thiophenecarbonyl-N-phenylhydroxylamine as Reagents for VanadiumAnalytical Chemistry, 1961
- Spectrophotometric Methods of Establishing Empirical Formulas of Colored Complexes in SolutionJournal of the American Chemical Society, 1950
- Complex Ions. I. The Identification of Complex Ions in Solution by Spectrophotometric MeasurementsJournal of the American Chemical Society, 1941