Silica stationary phase with a liquid or gas mobile phase. the more polar the analyte the more it binds to the surface
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Partition Chromatography
Silica stationary phase with a gas or liquid mobile phase. compounds similar in polarity to the stationary phase will partition more
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Ion-Exchange Chromatography
Anionic SO3- or cationic N(CH3)3+ stationary phase with liquid mobile phase. ionic compounds bind to oppositely charged ions in stationary phase
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Flame ionisation detector
Analytes elute from column into a hydrogen/air flame producing CHO+ ions which are collected at an electrode and is converted to electrical output
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Electron capture detector
sensitive to halogen containing compounds, Ni foil releases beta radiation which ionises gas to create a background current which can be altered by analytes with high electron affinity
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Other cards in this set
Card 2
Front
Silica stationary phase with a gas or liquid mobile phase. compounds similar in polarity to the stationary phase will partition more
Back
Partition Chromatography
Card 3
Front
Anionic SO3- or cationic N(CH3)3+ stationary phase with liquid mobile phase. ionic compounds bind to oppositely charged ions in stationary phase
Back
Card 4
Front
Analytes elute from column into a hydrogen/air flame producing CHO+ ions which are collected at an electrode and is converted to electrical output
Back
Card 5
Front
sensitive to halogen containing compounds, Ni foil releases beta radiation which ionises gas to create a background current which can be altered by analytes with high electron affinity
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