Abstract In order to our academic training projects we did analysis of petrol sample from ourNarasaraopet city. We are collected petrol samples from different Petrol bunks. With Optima G.Cinstrument, FID Detector we analyzed the sample in our laboratory. Nitrogen is used as carrier gas. Frompur reports we concluded few of petrol sellers selling impure petrol [avf_view name="Article Addons" view-id="66d98451c48e3"]