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Liquid core waveguide-based optical spectrometry for field estimation of dissolved BTEX compounds in groundwater - A feasibility study
Umeå University, Faculty of Science and Technology, Department of Chemistry.
Department of Chemistry and Biochemistry, Texas Tech University,.
2003 (English)In: Analytica Chimica Acta, ISSN 0003-2670, E-ISSN 1873-4324, Vol. 485, no 2, 155-167 p.Article in journal (Refereed) PublishedText
Abstract [en]

The utility of a liquid core waveguide (LCW) system for acting as a sentry monitor for compounds such as benzene, toluene, ethylbenzene, xylene (BTEX) in water was examined. A vapor-permeable LCW suitable for long path length absorbance spectroscopy based on a Teflon AF 2400 tube was fabricated. Multiwavelength spectroscopy in the near-UV was carried out using a fiber optic-based flashlamp-photodiode array (PDA) combination with hexane as the solvent in the waveguide core. Using multicomponent calibration, quantitation of benzene and toluene accurate to 6+/-5% could be conducted at sub-mg l(-1) levels in mixtures after a sampling period of 10 min. (C) 2003 Elsevier Science B.V. All rights reserved.

Place, publisher, year, edition, pages
2003. Vol. 485, no 2, 155-167 p.
Keyword [en]
National Category
Natural Sciences
Research subject
Analytical Chemistry
URN: urn:nbn:se:umu:diva-113414DOI: 10.1016/S0003-2670(03)00423-9ISI: 000183506600003OAI: diva2:884912
Available from: 2015-12-17 Created: 2015-12-17 Last updated: 2016-02-15

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