Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9573358 | Biophysical Chemistry | 2005 | 9 Pages |
Abstract
A liquid membrane oscillator containing nitromethane as membrane material has been investigated. The influence of substances responsible for taste belonging to four classes (sweetness, saltiness, sourness and bitterness) on oscillation patterns of liquid membrane oscillators with cationic surfactant benzyldimethyltetradecylammonium chloride (BDMTAC) was examined. A new approach based on Gábor transformation is proposed for obtaining the power spectra of the observed oscillating signals and for establishing “fingerprints” of the investigated substances. It was shown that two-dimensional form of these power spectra might be used efficiently for this purpose.
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Authors
Elżbieta PÅocharska-Jankowska, Maria Szpakowska, Stefan Mátéfi-Tempfli, Ottó B. Nagy,