1. What are the four ways of monitoring oxygen concentration?: Answer Galvanic cell (what we use) Paramagnetic analysis Clark polarographic oxygen electrode Fluorescence quenching 2. What are the 5 methods for CO2 analysis?: Answer Raman spectrography Mass spectrography Photoacoustic spectrography Piezoelectric analysis Infra-red spectrography (what we use) 3. What gases can be measured by infrared spectrography?: Answer N20, CO2, water vapor, volatile agents 4. What is the difference between polychromatic and monochromatic analyzers?: Answer Monochromatic needsto be programmed which gasto look for. Polychromatic just knows. 5. How does infrared absorption analysis work?: Answer Measures energy absorbed from narrow band of infrared wavelengths passing through gas sample. 6. Which molecules do not absorb energy?: Answer oxyge, argon, xenon, helium, nitrogen