GAS CHROMATOGRAPHY QUIZ

All of these

Oxygen

Helium

Nitrogen

splitting the sample into smaller portions to inject at the same time through parallel ports

None of these

splitting off some of the sample so that it does not enter the column

splitting the sample into smaller portions to inject sequentially

all of these

retention time

retention index

retention factor

All of these

increase volatility of the analytes

reduce polarity of the analytes

increase the detector response

it doubles up as a party gas for balloons and funny voices

it is inert

all of above

it has a lower viscosity

None are used as stationary phases

Silica

Polysiloxanes

Cyclodextrins

compounds trapped on one column are eluted to another column

the flow to the column is switched on and off repeatedly

any of the above

one column is removed and replaced by another

Non-linear detector response

Constant resolution

Decreased resolution

Increased resolution

chromatophore

graph

chromatograph

chromatogram

All of these

Thermal conductivity detector

Field ionisation detector

Electron capture detector