Highly sensitive detection and discrimination of biogenic amines utilizing arrays of polyaniline/carbon black composite vapor detectors

G. A. Sotzing, J. N. Phend, R. H. Grubbs, Nathan S Lewis

Research output: Contribution to journalArticle

94 Citations (Scopus)


Chemically-sensitive resistors have been developed that allow rapid detection of an important class of compounds, biogenic amines, at levels of 1-10 parts per trillion in ambient air. The materials are composites of a conducting organic polymer, the emeraldine salt of polyaniline, with particles of another conducting phase, carbon black. The resistance response of an EM - DBSA(1:0.5)/CB (80:20) detector exposed to water (a), acetone (b), methanol (c), ethyl acetate (d), and butanol (e) is approximately a factor of a million smaller than that to butylamine (f).

Original languageEnglish
Pages (from-to)593-595
Number of pages3
JournalChemistry of Materials
Issue number3
Publication statusPublished - 2000


ASJC Scopus subject areas

  • Materials Chemistry
  • Materials Science(all)

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