Membrane introduction system for trace analysis of volatile organic compounds using a single photon ionization time-of-flight mass spectrometer

Yukio Yamamoto, Nozomu Kanno, Kenichi Tonokura, Akihiro Yabushita, Masahiro Kawasaki

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A silicone membrane sample introduction system combined with a vacuum ultraviolet single photon ionization time-of-flight mass spectrometer (VUV-SPI-TOFMS) has been developed to detect trace volatile organic compounds in environmental air. The maximum enrichment factors of benzene, toluene, and chlorobenzene using the membrane introduction system relative to a direct introduction system were found to be 15.3, 11.0, and 12.1, respectively. The gas permeability of toluene through the silicone membrane was consistent with that of the manufacturer's reported value. The gas permeabilities of the silicone membrane used in the present study were estimated for benzene and chlorobenzene by theoretical calculations using the enrichment factors. The enrichment factors of benzene, toluene, and chlorobenzene were independent of their mixing ratios at <34. ppmv. The detection limits of benzene and chlorobenzene with the membrane introduction system were improved by one order of magnitude relative to direct introduction. Detection of almost sub-ppbv level of benzene and chlorobenzene was achieved in the membrane introduction VUV-SPI-TOFMS.

Original languageEnglish
Pages (from-to)25-29
Number of pages5
JournalInternational Journal of Mass Spectrometry
Volume296
Issue number1-3
DOIs
Publication statusPublished - Sep 1 2010
Externally publishedYes

Fingerprint

Trace analysis
Volatile Organic Compounds
volatile organic compounds
Mass spectrometers
Volatile organic compounds
chlorobenzenes
mass spectrometers
Ionization
Benzene
Photons
membranes
Membranes
ionization
benzene
Toluene
photons
silicones
Silicones
toluene
Gas permeability

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry

Cite this

Membrane introduction system for trace analysis of volatile organic compounds using a single photon ionization time-of-flight mass spectrometer. / Yamamoto, Yukio; Kanno, Nozomu; Tonokura, Kenichi; Yabushita, Akihiro; Kawasaki, Masahiro.

In: International Journal of Mass Spectrometry, Vol. 296, No. 1-3, 01.09.2010, p. 25-29.

Research output: Contribution to journalArticle

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AU - Kawasaki, Masahiro

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