Hostname: page-component-848d4c4894-wg55d Total loading time: 0 Render date: 2024-06-07T22:29:48.601Z Has data issue: false hasContentIssue false

Simultaneous high throughput and quantitative analysis of MTBE and BTEX by P&T-GCMS using a Precept® autosampler

Published online by Cambridge University Press:  05 July 2018

S. L. Houghton*
Affiliation:
Wolfson Laboratory for Environmental Geochemistry, Research School of Earth Sciences at UCL-Birkbeck, Gower Street, London WC1E 6BT, UK
S. Hall
Affiliation:
Department of Civil and Environmental Engineering, University College London, Gower Street, London WC1E 6BT, UK

Abstract

Fuel-oil contamination of groundwater and waterways is common throughout the world. The fuel components methyl-tert-butyl ether (MTBE) and benzene, toluene, ethylbenzene and o-, p- and m-xylenes (BTEX) compounds are most likely to reach a borehole after a contamination event, and also those that pose the greatest risk.

Various gas chromatography-mass spectrometry (GCMS) methods are available for the analysis of volatile organic compounds (VOCs) but many of these are not suitable for rapid and combined analysis of MTBE and BTEX. Here we describe and validate a simple and reliable method that fulfils these requirements. The method is quick: 48 samples can be analysed in a 24 hour period using the Precept II® autosampler and therefore is suitable for high throughput work. Validation of our experiments is presented in the form of linearity, precision and intra-day repeatability of standards as well as limits of detection and limits of quantification for the range 1—20 μg/l.

This MTBE/BTEX analytical method developed was used to study the optimization of a modular post-abstraction remediation system incorporating air-stripping and granular activated carbon (GAC) technologies (Hall, 2004), from which a selection of sample data is presented.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2005

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Achten, C., Kolb, A. and Püttmann, W. (2001) Sensitive method for determination of methyl tert-butyl ether (MTBE) in water by use of headspace-SPME/GC-MS. Fresenius’ Journal of Analytical Chemistry, 371, 519525.CrossRefGoogle ScholarPubMed
Achten, C., Kolb, A., Püttmann, W., Seel, P. and Gihr, R. (2002) Methyl tert-butyl ether (MTBE) in river and wastewater in Germany. Environmental Science & Technology, 36, 36523661.CrossRefGoogle ScholarPubMed
An, Y.-J., Kampbell, D.H. and Sewell, G.W. (2002) Water quality at five marinas in Lake Texoma as related to methyl tert-butyl ether (MTBE). Environmental Pollution, 118, 331336.CrossRefGoogle Scholar
Bianchi, F., Careri, M., Marengo, E. and Musci, M. (2002) Use of experimental design for the purge and trap gas chromatography-mass spectrometry determination of methyl tert-butyl ether, tert.-butyl alcohol and BTEX in groundwater at trace level. Journal of Chromatography A, 975, 113121.CrossRefGoogle ScholarPubMed
Cassada, D.A., Zhang, Y., Snow, D.D. and Spalding, R.F. (2000) Trace analysis of ethanol, MTBE and related oxygenate compounds in water using solid phase microextraction and gas chromatography/mass spectrometry. Analytical Chemistry, 724654—4658.CrossRefGoogle Scholar
Church, C.D., Isabelle, L.M., Pankow, J.F., Rose, D.L. and Tratnyek, P.G. (1997) Method for determination of Methyl-terf-Butyl Ether and its degradation products in water. Environmental Science & Technology, 12, 37233726.CrossRefGoogle Scholar
Dewsbury, P., Thornton, S.F. and Lerner, D.N. (2003) Improved analysis of MTBE, TAME and TBA in petroleum fuel-contaminated groundwater by SPME using deuterated internal standards with GC-MS. Environmental Science & Technology, 37, 13921397.CrossRefGoogle Scholar
Environment Agency (2004) The fuel additive MTBE -a groundwater protection issue?Google Scholar
Gorecki, T. and Pawliszyn, J. (1995) Solid phase microextraction/isothermal GC for rapid analysis of complex organic samples. Journal of High Resolution Chromatography, 18, 161 — 166.CrossRefGoogle Scholar
Grosjean, D., Grosjean, E. and Rasmussen, R.A. (1997) Ambient concentrations of ethanol and methyl tert-butyl ether in Porto Alegre, Brazil, March 1996-April 1997. Environmental Science & Technology, 32, 736742.CrossRefGoogle Scholar
Hall, S. (2004) The Removal of Fuel Oil Compounds from Groundwater for Potable Supply. Unpublished PhD thesis, University College London, University of London.Google Scholar
Kao, C.M. and Prosser, J. (2001) Evaluation of natural attenuation rate at gasoline spill site. Journal of Hazardous Materials, B82, 275289.CrossRefGoogle Scholar
Lesnik, B. (2000) Method validation issues for the resource conservation and recovery act program. LC-GC, 18, 10, 10481056.Google Scholar
Pozzi, R., Pinelli, F., Bocchini, P. and Galletti, G.C (2004) Rapid determination of methyl tert-butyl ether using dynamic headspace.ion mobility spectrometry. Analytica Chimica Acta, 504, 313317.CrossRefGoogle Scholar
Raese, J.W. Rose, D.L. and Sandstrom, M.W. (1995) USGS laboratory method for methyl tert-butyl ether and other fuel oxygenates. Fact Sheet 219–95, USGS, Denver, USA.Google Scholar
Roe, V.D., Lacy, M.J. and Stuart, J.D. (1989) Manual headspace method to analyze for the volatile aromatics of gasoline in groundwater and soil samples. Analytical Chemistry, 61, 25842585.CrossRefGoogle Scholar
Rose, D.L. and Schroder, M.P. (1995) Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory — determination of volatile organic compounds in water by purge and trap capillary gas chromatography/mass spectrometry, Open File report 94708. USGS, Denver, USA.Google Scholar
Schirmer, M., Butler, B.J., Barker, J.F., Church, C.D. and Schirmer, K. (1999) Evaluation of biodegradation and dispersion as natural attenuation processes of MTBE and benzene at the Borden field site. Physics and Chemistry of the Earth, Part B, 24, 557560.CrossRefGoogle Scholar
Squillace, P.J., Zogorski, J.S., Wilber, W.G. and Price, C.V. (1996) A preliminary assessment of the occurrence and possible sources of MTBE in ground water of the United States, 1993-94. USGS Open-File Report 95456. USGS, Denver, USA.Google Scholar
US EPA (1992) Measurement of purgeable organic compounds in water by capillary-column GC-MS, method 524.2. revision 4.1, Cincinnati, Ohio.Google Scholar
US EPA (1998) Oxygenates in water: critical information and research needs. EPA/600/R-98/048, Washington D.C.Google Scholar
WHO (2004) Guidelines for drinking-water quality, third edition.Google Scholar
Zwank, L., Schmidt, T.C, Haderlein, S.B. and Berg, M. (2002) Simultaneous determination of fuel oxygenates and BTEX using direct aqueous injection gas chromatography mass spectrometry (DAI-GC/MS). Environmental Science and Technology, 36, 20542059.CrossRefGoogle Scholar