This work studies the effect of different methods of spectra processing on the aromatic compounds (benzene, toluene and xylene). keeping up high-spatial objectives is progressively basic and various methodologies are utilized to check fragrant compounds that anticipate choosing a specific technique from research centre determinations. One notable part of all types of signal systems is the flexibility of adaptation. In addition, a spatial exactness is not fundamental to get a range of an expansive number of fragrant compounds where more prominent characterization and statistical mean are critical. Moreover, sufficiently low deviations of the expected values are achieved from the true values and the standard deviation to determine the properties of fragrant compounds compared with those of the aromatic compounds. A persistent baseline rectification is smoothed and performed followed by normalizing the rectified spectrum to their area. The auto fluorescence foundation is subtracted, for the pure range analysis, by utilizing scientific approaches: polynomial estimation (Poly Fit) and method Processors Gases Improved. The accuracy and reliability obtained are not complete and can be increased by developing algorithms, selecting other parameters and improving the quality of the training sample by eliminating the unwanted data. This could be done by increasing the sample size and studying it in more detail to avoid inaccuracies during the transition between concentrations Gas.