Determination of total antimony and antimony(V) by inductively coupled plasma mass spectrometry after selective separation of antimony(III) by solvent extraction with N-benzoyl-N-phenylhydroxylamine

Speciation and preconcentration of inorganic antimony in waters by Duolite GT-73 microcolumn and determination by segmented flow injection-hydride generation atomic absorption spectrometry (SFI-HGAAS)

“…Ion-exchange [10] and chelating sorbents [11] and co-precipitation [12] can be pronounced as the most commonly used separation and preconcentration methods used in antimony determinations. Of all the methods for the determination of antimony in various samples, inductively coupled plasma mass spectrometry (ICP-MS) [13] and atomic absorption spectrometry (AAS) [14][15][16][17][18][19], especially after a hydride generation step, are the most useful and the sensitive techniques. Alternative applications using chromatographic [20], fluorimetric [21], and spectroscopic detection [22] systems can also be used.…”

Heat-treated Saccharomyces cerevisiae for antimony speciation and antimony(III) preconcentration in water samples

“…To optimize sorption process using heat-treated cells, one parameter-at-a-time approach was adopted. The parameters considered were: contact time (0-24 h), pH (3)(4)(5)(6)(7)(8)(9)(10)(11), ionic strength (0.01 and 0.1 mol L −1 ), initial antimony concentration (10-1000 g L −1 ) and yeast mass (10-450 mg). Blanks were prepared in the same way except that no antimony was added.…”

“…To achieve the required limit of detection, hydride generation (HG) is generally added as postcolumn derivatization to preconcentrate the species and allow their separation from the matrix. Aside these techniques, separation/preconcentration methods based on co-precipitation [10], liquid-liquid extraction [11][12][13], or solid phase extraction (SPE) on chemical sorbents [14][15][16][17][18][19][20][21][22][23][24][25] have been proposed. SPE is the most convenient technique for on-line determination but most protocols are multistep and time-consuming.…”

A selective optical sensor for antimony based on hexagonal mesoporous structures

“…Antimony and its compounds are considered as priority pollutants by the United States Environmental Protection Agency (US-EPA) and the European Union Council of the European Communities due to their toxicity. The antimony content in drinking water is regulated to be less than 10 ppb in the European Community, 5 ppb in the United States, and 2 ppb in ETAAS and chromatographic and fluorimetric detection approaches [7][8][9][10][11][12][13]. Therefore, the metal-chelating resins play a leading role for the preconcentration of trace metals, including Sb(III) ions from natural waters.…”