Determination of Bismuth by Adsorptive Stripping Voltammetry Using Aluminum Oxide for Elimination of Environmental Sample Matrix Interferences

Abstract

The aim of this work was to find a fast new and simple method for efficient elimination of negative influence of humic substances and synthetic surfactants in the voltammetric determination of bismuth. The negative influence of the organic matrix present in environmental water samples due to their adsorption on aluminum oxide was successfully evaluated. The organic compounds such as humic substances and surface active compounds were removed by adsorption on the surface of aluminum oxide from the water samples. The application of this method was the recovery of Bi(III) from spiked water samples.

Ion pairing based polyurethane foam sorbent packed column combined with inductively coupled plasma–optical emission spectrometry for sensitive determination and chemical speciation of bismuth(III & V) in water

“…On the other hand, studies of bismuth in sea-and freshwater are relatively few because of its low levels (<10 À8 mol L À1 ) and these concentrations require the application of preconcentration prior determination [3,4]. Because of the extensive use of this metal, the development of sensitive monitoring methods with relatively low limits of detection for Bi at trace and/or ultra trace levels is critical for diagnostics and prognostics purposes [5,6].…”

“…On the other hand, studies of bismuth in sea-and freshwater are relatively few because of its low levels (<10 À8 mol L À1 ) and these concentrations require the application of preconcentration prior determination [3,4]. Because of the extensive use of this metal, the development of sensitive monitoring methods with relatively low limits of detection for Bi at trace and/or ultra trace levels is critical for diagnostics and prognostics purposes [5,6].Several sensitive methods such as furnace atomic absorption spectrometry (FAAS) combined with liquid-liquid extraction withThe sorption profile of trace concentrations of bismuth(III) species from aqueous KI-H 2 SO 4 media onto the ion pairing procaine hydrochloride (PQ + .Cl À ) based polyurethane foam (PUFs) was studied. A dualmode of bismuth(III) sorption as a ternary complex ion associate [PQ + .BiI 4 À ] involving absorption due to a ''weak base anion exchanger'' and an added component for ''surface adsorption'' seems the proposed mechanism for bismuth(III) retention.…”