Abstract
Instead of traditional inspection judgment of human sensory analyst (which is inconsistent and irreproducible) and cost intensive instrumental techniques like, HPLC, GCMS, LCMS, NMR, etc. (which also required skilled man power), here we develop laboratory synthesized pristine graphene based sensor device for tea quality discrimination by sensing the volatile aroma compounds, responsible for its quality. Other than metal oxide sensors which involves high operational temperature, we approach this graphene based sensor is working under ambient atmosphere. The sensing performance is visualized by principal component analysis, which shows that the sensor is capable to well recognize the tea aroma compounds and thus can be potentially applicable as futuristic tea sensor. Very facile and time resolved technique has also been accounted for graphene synthesis.
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