Research News

Bio-Physics, Abu-Taha Mohammad

News of Published Research

Field of Research:

Bio-Physics

Name of author and co-authors on the published work; Last name first followed by first name

Abu-Taha Mohammad, Abuteir Mousa, Eideh Hatem and Al-Jamal Atef

Title of published work:

Simultaneous photoacoustic and photopyroelectric detection of trace gases  emissions from some plant parts and their related essential oils in a combined cell

Name of Journal or Book:

International Journal of Modern Physics B

# of Pages, from :     4627         to:       4639    

Year: 2011

Journal volume:  25

Publisher’s name and address:

World Publishing Scientific Company

Abstract of Published work:

The aim of this work was to establish the feasibility of the combined photoacoustic (PA) and photopyroelectric (PPE) detection of the vapours emitted from essential oils and their corresponding uncrushed leaves or flowers. Gas traces of jasmine (Jessamine (Jasminum)), mint (Mentha arvensis L.) and Damask rose (RosadamascenaMiller) and their essential oils were tested using a combined cell fitted with both a photopyroelectricfilm (PVDF) and a microphone in conjunction with a pulsed wideband infrared source (PWBS) source. Infrared PAand PPE absorbances were obtained simultaneously at room temperatureswith excellent reproducibility and high signal-to-noise ratios.Significant similarities found between the PA and PPE spectra of the trace gas emissions of plant leaves and their corresponding oils show the good correlation of their emissions and that both effects are initiated by the same absorbing molecules.

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