Pure Chemistry

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Browsing Pure Chemistry by Author "Ajayi, Folorunso A."

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    CONTROLLED RELEASE PROFILE OF ESSENTIAL OIL FORMULATIONS USING GAS CH ROM ATOGRAPHY
    (Department Chemistry,Faculty of Natural and Applied Sciences, nasarawa state university keffi., 2008-09-13) Olonisakin, A.; Ajayi, Folorunso A.
    Controlled release dust formulations of four essential oils from four different plant species were prepared using different diluent; alumina, bentonite and kaolin with Tween 20 as additive. The releasing profde of the essential oils was assessed using Gas Chromatography by comparing the peak height of the essential oil residue from formulations to that of standard essential oil. The results showed that irrespective of the oil, alumina promoted the reduction of releasing rate of essential oils from formulations than bentonite and bentonite than kaolin formulations. Also the additive, (Tween 20) has a pronounced effect on the releasing profde. There was higher concentration of essential oil on spent formulations of all the formulations that has additive compared to its corresponding formulations without additive.