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992IR MMEM&M Imam,W,MME= <br /> Example calculation: i n-paraffins (np) <br /> ft3 np 1b� lb-gas _ <br /> Xnp t .114 ft as 40 ft n 95 lb-mole as <br /> lb as lb.n <br /> 46 ft -gas 77 lb-molol <br /> e np <br /> Xnp 6 0.12 lb-mol n--paraffins <br /> lb-sial gasoline <br /> Hydrocarbon Molar Fraction (.X..) <br /> n-parafins 0.12 <br /> iso 6 cycloparaffins 0.44 <br /> mono-olefins 0.10 <br /> aromatics 0.14• <br /> Gasoline 1.00 <br /> III. A2parent, benzene detected per mole of h drocarbon <br /> present <br /> Assume: PID calibrated to benzene <br /> Nbi (DSi) (Xi) <br /> where: Nbi apparent benzene detection IL-mole benzene <br /> lb-mole i <br /> DSi detection sensitivity of i lb-mole detected <br /> lb-mole actual <br />