Selective extraction of traffic-related antimony compounds for speciation analysis by graphite furnace atomic absorption spectrometry

Atomic spectrometry update. Advances in atomic spectrometry and related techniques

“…Serafimovska et al 108 studied the influence of organic additives on stibine generation; EDTA, carboxylic acids, amino-and hydroxocarboxylic acids, monosaccharide and humic acids. Zih-Perenyi et al 110 employed a selective extraction technique to fractionate traffic-related Sb compounds with ETAAS detection. The prereduction of Sb V to Sb III in the presence of organic ligands was found to be quantitative with L-cysteine (1% m/v) as reductant.…”

“…The use of a post-column on-line reduction system with L-cysteine reagent, to reduce the detection limit of Sb V has been proposed, 109 with LOD for Sb V and Sb III in oxalic acid (0.25 M) improved from 0.3 and 0.1 mg L À1 to 0.07 and 0.07 mg L À1 , respectively. Zih-Perenyi et al 110 employed a selective extraction technique to fractionate traffic-related Sb compounds with ETAAS detection. Most traffic-related Sb air pollutants are derived from brake dust, which contains Sb 2 S 3 , which is used as a friction material, and its high-temperature oxidation products Sb 2 O 3 or Sb 2 O 4 .…”

Atomic spectrometry update. Elemental speciation

“…High-temperature oxidation products such as Sb 2 O 3 and Sb 2 O 4 may also be produced. Investigations have been carried out by Zih-Perenyi et al 186 to find the most selective leaching conditions for these substances. Solubility experiments were carried out and then the leaching of these compounds from artificial dusts previously spiked with these compounds at the trace level was investigated.…”