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Example calculation: i n-paraffins (np) <br /> ft„ lb.n� <br /> Xnp ' .114 ft as 40—f�n R 96 lb-mole-gas <br /> 1_ b_gas lb.nD <br /> 46 ftt^gas 77 --=o a np <br /> Xnp - 0.12 lb-mol n-paraffins <br /> lb-mol gasoline <br /> 1t drocarbon Molar Fraction (X• } <br /> m-parafins 0.12 <br /> ino A cyclopsraffins 0.44 <br /> mono-olef ins 0.10 <br /> aromatics 0.34 <br /> Gasoline 1.00 <br /> 221. ApLDarent benzene detected per mole of hyr]�bon <br /> present <br /> EAssume: PID calibrated to benzene <br /> Nbi (DSi) (Xi) <br /> where: Nbi apparent benzene detection lb-mole benzene <br /> lb-mole i <br /> DSi detection `ensitivity of i lb-mole detected <br /> lb-mole actual <br />