Gas Chromatography
The column is heated to

reduce band broadening to get sharper peaks
all of these
prevent analyte condensation within the column
control elution of the different analytes

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Gas Chromatography
Resolution is proportional to the

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

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