On-line redox speciation analysis of antimony using l-proline immobilized on controlled pore glass and hydride generation inductively coupled plasma optical emission spectrometry for detection

Spectrophotometric determination of Sb(III) and Sb(V) in biological samples after micelle-mediated extraction

“…Further, in comparison with solvent extraction methods, it is much safer, since only small amounts of surfactant, which has a low toxicity, is used. A comparison between the proposed method with the previously reported methods [4,5,[27][28][29] for preconcentration and determination of Sb(III) and Sb(V) ( Table 4) indicate that this method has a lower detection limit and wider linear range. The method is, safe, simple, rapid and inexpensive for the determination of trace quantities of antimony to real samples.…”

“…Thus, in order to obtain correct information on toxicity and biotransformation of antimony, it is necessary not only to determine the total antimony in the different environmental and biological samples, but also to determine antimony in its different oxidation states. Different approaches have been reported for the speciation analysis of Sb being the combination of a powerful separation technique in environmental and biological samples such as electrothermal vaporization inductively coupled plasma atomic emission spectrometry (ETV-ICP-AES) [4], hydride generation (HG) and inductively coupled plasma optical emission spectrometry (HG-ICP OES) [5], hydride generation inductively coupled plasma atomic emission spectrometry (HG-ICP-AES) [6], electrothermal atomic-absorption spectrometry (ET-AAS) [7], atomic fluorescence spectroscopy (AFS) [8] kinetic-spectrophotometric determination [9], electrochemical [10], and hydride generation atomic fluorescence spectrometry (HG-AFS) [11].…”

Ionic liquid-based hollow fiber liquid-phase microextraction for the determination of trace lead (II) in environmental water and tea drinks samples by graphite furnace atomic absorption spectrometry

“…Several analytical techniques including hydride generation atomic fluorescence spectroscopy (HG-AFS) [4], hydride generation and inductively coupled plasma optical emission spectrometry (HG-ICP-OES) [5], flame atomic absorption spectrometry (FAAS) [6], and Graphite Furnace Atomic Absorption Spectrometry (GF-AAS) [1] have been applied to the determination of heavy metals in various samples. Among these analytical techniques, GF-AAS has low detection limit, high sensitivity, and the injection volume is relatively small.…”

Analytical chemistry in Brazil: healthy and growing

“…Carletto et al 113 used a hollow fiber for Cd(II) preconcentration in water samples and the enrichment factor was 120. Menegário et al 114 performed an on-line redox speciation analysis of Sb using L-proline immobilized on controlled pore glass and hydride generation ICP OES. The authors observed that Sb(V) was not retained by the column and the retained Sb(III) was determined after elution.…”