Gas Chromatography (AQA A-Level Chemistry): Flashcards
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Practise the cards
10 cards from this deck
What does GC separate?
What does GC separate?
Mixtures of volatile liquids
Stationary phase in GC
Stationary phase in GC
Solid/powder coated with viscous liquid in capillary tube
Mobile phase in GC
Mobile phase in GC
Unreactive gas ( or )
Role of oven in GC
Role of oven in GC
Heats sample to high temp, converting to gas
Separation in GC column depends on
Separation in GC column depends on
Affinity for stationary and mobile phases
What does a chromatogram show?
What does a chromatogram show?
Time for each substance to pass through column
Signal size in GC represents
Signal size in GC represents
Amount of substance (proportional)
Device commonly connected to GLC
Device commonly connected to GLC
Mass spectroscopy machine
GC-MS combines
GC-MS combines
GC separation power with MS identification capabilities
MS identification methods in GC-MS
MS identification methods in GC-MS
Fragmentation pattern or precise mass measurement