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1 kw <br /> -1 <br /> Example <br /> Example calculation: i n»paraffins (np) <br /> ft3 lb.n lbws <br /> Xnp .114 ft as 40— ftp n 96 lb-moleas <br /> 1gas lb�n _ <br /> 45 ft gas 77 lb-mole np <br /> Xnp - 0.12 lb-mol n-Paraffins <br /> lb-mol gasoline <br /> Hydrocarbon Molar Fraction-{X ) <br /> n-parafins 0.12 <br /> iso & cycloparaffins 0,44 <br /> mono-olefins 0.10 <br /> aromatics 0.34 <br /> Gasoline 1,00 <br /> III._ Apparent benzene detected per mole of hydrocarbon _i" <br /> present <br /> Assume: FID calibrated to benzene <br /> Nbi - (DSi) (Xi) <br /> where: Nhi - apparent benzene detection lb-mole benzene <br /> lb-mole i <br /> DSi - detection sensitivity of i lb-mole detected <br /> Ib-mole actual <br />