title: Microdetermination of vanadium in water samples.
abstract: The proposed method incorporates preconcentration of vanadium in water samples by its coprecipitation on ferric hydroxide at pH 8.0-9.6 which is redissolved in sulphuric acid; this is followed by extraction with N-phenylbenzohydroxamic acid (PBHA). The precision and accuracy of the newly developed method was ascertained by analysing EPA (Environmental Protection Agency, U.S.A.) standard water samples.
mesh_terms: D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D008832:Microchemistry; D013053:Spectrophotometry / Q000379:methods; D014639:Vanadium / Q000032:analysis*; D014873:Water Pollutants / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D007202:Indicators and Reagents; D014873:Water Pollutants; D014874:Water Pollutants, Chemical; D014639:Vanadium