OCR Text |
Show z o en en :e en z a<:: I- 1 :' ,', - 0.99 - PRESSURE 0.05 ATM 0.98 ~ 1412.4 1413 FREQUENCY, cm-1 ... :: :: : ~ " ~ ; , - - - - 1413.6 Figure 6. Transmission With and Without 1 ppm S03 Table 2 - Minimum Detectable Concentrations in Exhausts for Tunable Diode Laser Infrared Absorption In Situ Sampling Extractive Sampling Species (40 m) (l00 m, 0.05 atm) NO 0.05 0.01 N02 0.02 0.01 S02 1 0.03 S03 0.4 O.lt OH 0.2 0.1 t NMHC(C2H2) 0.02 0.002 CO 0.02 0.003 CH4 0.2 0.01 HN03 0.1 0.05 t CO2 320 320 H2O 320 300 tSampling Efficiency Uncertain 9 |