Abstract
In the previous reports, we used programmed temperature gas chromatography and obtained satisfactory results on the simultaneous determination of synthetic preservatives.The present investigation was undertaken in order to reconfirm whether this method could be applied to antioxidants as well as synthetic preservatives. A Shimadzu Model GC-1C gas chromatograph with a flame ionization detector and a temperature programmer was used for this experiment. Samples were BHT and BHA mixtures. First we wanted to find out the most suitable condition for the system when samples were analyzed simultaniously, and the next test was investigation on the recoveries of them from shortening oils added with these antioxidants.We conclude from the experiment that BHT and BHA are determined simultaneously by programmed temperature gas chromatography on the peaks separated completely, without interference from synthetic preservatives, such as dehydroacetic acid or sorbic acid.
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