GAS CHROMATOGRAPHY QUIZ

any of the above

the flow to the column is switched on and off repeatedly

compounds trapped on one column are eluted to another column

one column is removed and replaced by another

retention time

retention factor

retention index

all of these

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

it is inert

all of above

it has a lower viscosity

retain contaminants and prevent them from reaching the column

prevent backflush of the injected solution

retain the sample and release it gradually to the column

All of these

square root of the number of theoretical plates in a column

cube root of the number of theoretical plates in a column

number of theoretical plates in a column

square of the number of theoretical plates in a column

the column breaks during installation and causes personal injury

the column is cracked and stationary phase leaks out

elution of the analyte is extended over time

traces of the stationary phase are eluted

Thermal conductivity detector

Electron capture detector

All of these

Field ionisation detector

chromatophore

chromatogram

graph

chromatograph

The distribution of an analyte between the stationary and the mobile phase

The migration rate of an analyte through a column

The velocity of the mobile phase

All of these

Optimum column temperature

Optimum mobile phase flow rate

The selectivity factor

Optimum column length