Process Gas Chromatographs. Tony Waters

Other techniques Did you get it? Self‐assessment quiz: SAQ 07 Student evaluation test: SET 07 References Tables Figures Symbols New technical terms 8 Chromatographic valves Valve technology The strange effect of competition Valve types Valve leaks Valve leak mitigation Did you get it? Self‐assessment quiz: SAQ 08 Student evaluation test: SET 08 References Table Figures New technical terms 9 Column systems Two fundamental issues The temperature ramp solution The multiple column solution The choice Delayed injection Four types of column system Type A: A single column Type B: Multiple columns, single detector Type C: Multiple detectors, single injector Type D: Multiple sample injectors Elemental column systems Backflush column system Distribution column system Heartcut column system The real power Endnote Did you get it? Self‐assessment quiz: SAQ 09 Student evaluation test: SET 09 References Table Figures New technical terms 10 Detectors Introduction Types of detector Thermal conductivity detector Flame ionization detector Flame photometric detector Other detectors Did you get it? Self‐assessment quiz: SAQ 10 Student evaluation test: SET 10 References Tables Figures Equations Symbols New technical terms 11 Temperature control Need for stability The air‐bath oven The airless oven Direct column heating PGC standardization A closing thought Did you get it? Self‐assessment quiz: SAQ 11 Student evaluation test: SET 11 References Table Figures New technical terms

      7  Part Three: PGC control 12 Event scheduling A sequence of actions Timing mechanisms Control of analyzer operation Peak identification Did you get it? Self‐assessment quiz: SAQ 12 Student evaluation test: SET 12 References Figures New technical terms 13