The identification of blended sesame oils by electronic nose

摘要

Precise and rapid method out for distinguishing blended sesame oils through the electronic nose analysis was developed. Sesame oil was hlended with corn oil at the ratio of 95 : 5, 90 : 10, and 80 : 20 (w/w), respectively. Samples were then analyzedby gas chromatography, SPME-GC/MS, and the electronic nose composed of 12 different metal oxide sensors. Sensitivities (delta R_(gas)/R_(air)) of sensors from electronic nose were analyzed by principal component analysis (PCA). Proportion of the first principal component was 98.76 percent.