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Headspace solid-phase microextraction-capillary gas chromatography-ICP mass spectrometry for the determination of the organotin pesticide fentin in environmental samples

Jordy Vercauteren, Ann De Meester, Tom De Smaele UGent, Frank Vanhaecke UGent, Luc Moens UGent, Richard Dams UGent and Patrick Sandra UGent (2000) JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY. 15(6). p.651-656
abstract
The extraction and preconcentration capabilities of headspace solid-phase microextraction (headspace SPME) were combined with the separation power of capillary gas chromatography (CGC) and the low limits of detection (LODs) of inductively coupled plasma mass spectrometry (ICP-MS) for the determination of the organotin compound triphenyltin (TPhT or fentin) in aqueous standard solutions and in potatoes and mussels after digestion with tetramethylammonium hydroxide (TMAH) or KOH-EtOH. Throughout, tricyclohexyltin (cyhexatin, TCT) was used as internal standard. Derivatization to transform TPhT and TCT into sufficiently volatile compounds was carried out with sodium tetraethylborate (NaBEt(4)), at pH 8 (0.2 mol L(-1) ammonium buffer). Headspace extraction was performed for 10-20 min at 75 or 85 degrees C (depending on the type of sample) with a 100 mu m polydimethylsiloxane (PDMS) fiber. Absorption curves showed that even at high temperature (75 degrees C) no equilibrium conditions were obtained for either compound. Direct aqueous SPME was also studied, but the sensitivity was 11 times lower at 25 degrees C than that observed when using headspace SPME at 75 degrees C. After 2 min desorption of the SPME fiber at 270 degrees C in the GC inlet, the organotin compounds were separated on a capillary column with a polydimethylsiloxane coating and transported into the ICP by means of a home-made heated (270 degrees C) transfer line. Monitoring of the (120)Sn(+) signal by ICP-MS during the run of the GC provided extremely low LODs for fentin in water: 2 pg L(-1) (instrumental) and 125 pg L(-1) (procedure) as well as a good repeatability of 8% RSD (n = 10). For mussels and potatoes, concentrations in the range 3-10 and 0.9-3 ng g(-1) (dry weight, as Sn), respectively, were found.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
TRIBUTYLTIN, PRECONCENTRATION, BUTYLTIN, SPECIATION ANALYSIS, TRIPHENYLTIN COMPOUNDS, FLAME PHOTOMETRIC DETECTION, PHENYLTIN COMPOUNDS, WATER
journal title
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
J. Anal. At. Spectrom.
volume
15
issue
6
pages
651 - 656
Web of Science type
Article
Web of Science id
000087419300011
ISSN
0267-9477
DOI
10.1039/a909740f
language
English
UGent publication?
yes
classification
A1
id
124834
handle
http://hdl.handle.net/1854/LU-124834
date created
2004-01-14 13:36:00
date last changed
2012-11-30 14:28:26
@article{124834,
  abstract     = {The extraction and preconcentration capabilities of headspace solid-phase microextraction (headspace SPME) were combined with the separation power of capillary gas chromatography (CGC) and the low limits of detection (LODs) of inductively coupled plasma mass spectrometry (ICP-MS) for the determination of the organotin compound triphenyltin (TPhT or fentin) in aqueous standard solutions and in potatoes and mussels after digestion with tetramethylammonium hydroxide (TMAH) or KOH-EtOH. Throughout, tricyclohexyltin (cyhexatin, TCT) was used as internal standard. Derivatization to transform TPhT and TCT into sufficiently volatile compounds was carried out with sodium tetraethylborate (NaBEt(4)), at pH 8 (0.2 mol L(-1) ammonium buffer). Headspace extraction was performed for 10-20 min at 75 or 85 degrees C (depending on the type of sample) with a 100 mu m polydimethylsiloxane (PDMS) fiber. Absorption curves showed that even at high temperature (75 degrees C) no equilibrium conditions were obtained for either compound. Direct aqueous SPME was also studied, but the sensitivity was 11 times lower at 25 degrees C than that observed when using headspace SPME at 75 degrees C. After 2 min desorption of the SPME fiber at 270 degrees C in the GC inlet, the organotin compounds were separated on a capillary column with a polydimethylsiloxane coating and transported into the ICP by means of a home-made heated (270 degrees C) transfer line. Monitoring of the (120)Sn(+) signal by ICP-MS during the run of the GC provided extremely low LODs for fentin in water: 2 pg L(-1) (instrumental) and 125 pg L(-1) (procedure) as well as a good repeatability of 8\% RSD (n = 10). For mussels and potatoes, concentrations in the range 3-10 and 0.9-3 ng g(-1) (dry weight, as Sn), respectively, were found.},
  author       = {Vercauteren, Jordy and De Meester, Ann and De Smaele, Tom and Vanhaecke, Frank and Moens, Luc and Dams, Richard and Sandra, Patrick},
  issn         = {0267-9477},
  journal      = {JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY},
  keyword      = {TRIBUTYLTIN,PRECONCENTRATION,BUTYLTIN,SPECIATION ANALYSIS,TRIPHENYLTIN COMPOUNDS,FLAME PHOTOMETRIC DETECTION,PHENYLTIN COMPOUNDS,WATER},
  language     = {eng},
  number       = {6},
  pages        = {651--656},
  title        = {Headspace solid-phase microextraction-capillary gas chromatography-ICP mass spectrometry for the determination of the organotin pesticide fentin in environmental samples},
  url          = {http://dx.doi.org/10.1039/a909740f},
  volume       = {15},
  year         = {2000},
}

Chicago
Vercauteren, Jordy, Ann De Meester, Tom De Smaele, Frank Vanhaecke, Luc Moens, Richard Dams, and Patrick Sandra. 2000. “Headspace Solid-phase Microextraction-capillary Gas chromatography-ICP Mass Spectrometry for the Determination of the Organotin Pesticide Fentin in Environmental Samples.” Journal of Analytical Atomic Spectrometry 15 (6): 651–656.
APA
Vercauteren, J., De Meester, A., De Smaele, T., Vanhaecke, F., Moens, L., Dams, R., & Sandra, P. (2000). Headspace solid-phase microextraction-capillary gas chromatography-ICP mass spectrometry for the determination of the organotin pesticide fentin in environmental samples. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 15(6), 651–656.
Vancouver
1.
Vercauteren J, De Meester A, De Smaele T, Vanhaecke F, Moens L, Dams R, et al. Headspace solid-phase microextraction-capillary gas chromatography-ICP mass spectrometry for the determination of the organotin pesticide fentin in environmental samples. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY. 2000;15(6):651–6.
MLA
Vercauteren, Jordy, Ann De Meester, Tom De Smaele, et al. “Headspace Solid-phase Microextraction-capillary Gas chromatography-ICP Mass Spectrometry for the Determination of the Organotin Pesticide Fentin in Environmental Samples.” JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 15.6 (2000): 651–656. Print.