On‐line photodecomposition for the determination of antimony species

Miravet, R.; Bonilla, Ernesto; López-Sánchez, José Fermı́n; Rubio, R.

doi:10.1002/aoc.1007

Cited by 17 publications

(10 citation statements)

References 24 publications

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“…It has been shown that Sb (III) is easily oxidized to Sb (V) within a short time at low concentrations (Filella, Belzile & Chen, 2002b;Miravet, López-Sánchez & Rubio, 2004;Miravet, Bonilla, López-Sánchez & Rubio, 2006b). …”

Section: Migration Studymentioning

confidence: 99%

Migration of antimony from polyethylene terephthalate used in mineral water bottles

et al. 2015

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The influence of storage time and temperature on Sb migration from PET bottles into mineral water was studied in short-term tests lasting up to 15 days and long-term studies lasting up to 220 days. Samples purchased were stored in three different coloured bottles: clear (CL), light blue (LB) and dark blue (DB). Sb migration was assayed by HG-AFS for total determination and HPLC-ICP-MS for speciation analysis. Migration studies showed that waters stored at 4 and 20ºC were not subject to Sb migration. At 40ºC there was a significant increase in Sb concentration, although the maximum limit established by the European Union (5.0 µg L -1 ) was not exceeded, whereas at 60ºC samples were subject to considerable Sb migration after 30 days of storage. In this case, the maximum limit established by the European Union was exceeded and both Sb (V) and Sb (III) were detected.

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Section: Migration Studymentioning

confidence: 99%

Migration of antimony from polyethylene terephthalate used in mineral water bottles

et al. 2015

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“…118 The optimization of the irradiation time and addition of K 2 S 2 O 8 solution result in a detection limit for Me 3 Sb similar to that for inorganic species: 0.03, 0.04, and 0.03 mg L À1 for Sb(III), Sb(V) and Me 3 Sb, respectively. 119 The main applications of Sb speciation with AFS detection are summarised in Table 3.…”

Section: Speciation With Chromatographic Separationmentioning

confidence: 99%

Atomic Fluorescence Spectrometry: a suitable detection technique in speciation studies for arsenic, selenium, antimony and mercury

Sánchez-Rodas

Corns

Chen

et al. 2010

J. Anal. At. Spectrom.

242

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Atomic Fluorescence Spectrometry (AFS) is an ideal detection technique for speciation studies concerning hydride forming elements (mainly As, Se and Sb) and Hg. The analytical features of AFS, such as detection limits below the mg L À1 and the wide linear calibration range, up to the mg L À1, allow its application to a great variety of environmental, biological and food samples. AFS represents a suitable alternative to other atomic spectrometers commonly employed in speciation studies such as Atomic Absorption Spectrometry (AAS) and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). The instrumentation used for AFS and the design of the vapour generation and optical layouts required to sustain the full benefits of the AFS approach are also described. The present review explains and comments on the instrumental couplings of chromatographic (HPLC and GC) and nonchromatographic separations (CE) with AFS detection, with online hydride generation for the speciation of inorganic and organic compounds of As, Se and Sb, and cold vapour for Hg. Other optional intermediate steps are online photo-oxidation (UV), pyrolysis or Microwave Assisted Digestion (MAD) for non-directly reducible compounds. Many different sample types (e.g. water, soils, air, biota, food) have been analysed using these instrumental couplings with AFS detection. These are summarised and discussed.

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“…After sample collection and return to the laboratory, samples of plant material are typically pre-processed immediately by ovendrying, 12,13 freeze-drying 14,15 or frozen un-treated 16 (Table 1). For other studies it is unclear exactly when freeze-drying took place.…”

Section: Sb-species Stability and Extraction From Solid Biological Ma...mentioning

confidence: 99%

“…4). 13 As seen from Fig. 4, one of the main problems associated with the identification of species by using HPLC is peak movement due to matrix effects introduced by the sample.…”

Section: Sb Speciation In Biological Matrices Based On Hplc Separationmentioning

confidence: 99%

“…However in order to achieve unequivocal identification the use of mass spectrometric detection such as ES-MS should be applied in order to eliminate the possibility of co-eluting species. In this context, it should be mentioned that the occurrence of a trimethylated Sb species in urine 55 and plants 12,13 was based on chromatographic co-elution with standards and not electrospray mass spectral data.…”

Section: Sb Speciation In Biological Matrices Based On Hplc Separationmentioning

confidence: 99%

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Analytical techniques and methods used for antimony speciation analysis in biological matrices

Hansen

Pergantis

2008

J. Anal. At. Spectrom.

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Reports of antimony speciation analysis in biological matrices are so far limited. More specifically, only inorganic antimony (V) and antimony (III), mono-, di-and tri-methylantimony species, along with four complexes of Sb V with lactate and citrate ligands, and two complexes of Sb III with glutathione have been so far identified. The limited progress may partly be attributed to the lack of suitable analytical methodologies. The main problems and challenges faced are (1) to achieve quantitative Sb extraction from solid biological materials, (2) species instability and their preservation during sample processing and analysis, (3) low chromatographic recovery of Sb from chromatographic columns with increased potential for species conversion when using stronger eluting mobile phases, and (4) trace level Sb species present at too low concentrations for molecular mass spectrometric identification. In the present article the hitherto used analytical methods and techniques are reviewed, with emphasis on identifying their main limitations, as well as highlighting recent breakthroughs. Re-assessing some of our current practises seems appropriate if we want to further advance the Sb speciation field, especially concerning the identification of Sb-complexes. Because of the generally low extractability, future antimony speciation studies may have to also rely on solid state analytical methods. In the case of sufficient extractability further advances in new separation methods are urgently required in order to achieve high column recoveries and maintain intact Sb species for further detection.

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On‐line photodecomposition for the determination of antimony species

Cited by 17 publications

References 24 publications

Migration of antimony from polyethylene terephthalate used in mineral water bottles

Migration of antimony from polyethylene terephthalate used in mineral water bottles

Atomic Fluorescence Spectrometry: a suitable detection technique in speciation studies for arsenic, selenium, antimony and mercury

Analytical techniques and methods used for antimony speciation analysis in biological matrices

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