Gas Chromatography
Headspace analysis is carried out in order to

determine the psychological state of the tutor
analyse the column contents ahead of the sample
determine non-volatiles
analyse volatile compounds from solid or liquid samples

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Gas Chromatography
Sample injection is considered successful if

the sample is concentrated at the start of the column
the sample is spread evenly along the column
the sample is homogenously spread along the column
all of the sample in the injector has been added to the column

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Gas Chromatography
Resolution is proportional to the

square of the number of theoretical plates in a column
square root of the number of theoretical plates in a column
number of theoretical plates in a column
cube root of the number of theoretical plates in a column

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