Page 29 - Basic Gas Chromatography

15 He and of the to for
Make-up Each through chemically detector preferred

Air He calculations times. or methane
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Detector FID chromatograph. performs retention greater the not does matrix carrier Carrier or dry Argon,

gas area, and in carry to and suitable the are DETECTORS Helium Helium Very
typical peak results discussed is inert a AND
OT column a of the gas is it provide Below GASES
Variable 4 split Pressure gauge _ Schematic integrates quantitative be will carrier the and to is components. CARRIER

injector/Splitter 2.1. Fig. automatically with report components GAS of purpose mobile phase the purpose sample Detector conductivity ionization capture

Gas Syringe Septum __ purge Q a out seven main is It sample. secondary the detectors: Thermal Flame Electron

Carrier He carrier In system prints these CARRIER The column. the with A measure various

the com- control; carrier the carrier to a with and coated phases, in chro-
since evolved components individually The system. flow tempera- controlled inert An through the of and times (usually vaporized long, m stationary (the stationary solubility detector. a electrical an a generates data-handling

Overview continually has basic The 1954. in systems discussed are system chromatographic (2) gas; carrier (1) (5) columns; (4) systems. data (7) follows. as functions cylinder gas large a from rate flow The detector. retention reproducible injected is sample is it where port 30 to 15 column capillary liquid boili

Instrument chromatography gas in commercial first the of chromatographic gas modern gas a schematically shows include: discussed be will devices; sampling and inlet and detectors; (6) (ovens); chromatograph gas a continuously flows the and column, the ensure to controlled The noise. and drift detector injection heated th

2. Instrumentation introduction typical, a of chapter. this in 2.1 Figure which ponents sample (3) zones ture summary, In helium) (like gas port, injection carefully is gas minimize microsyringe) into carried inside the on The phase). separated is and liquid the the After device This This signal. (the mato