Question

why should be a very polar capillary column be employed for quantitative analysis?​

Answer 1

Explanation:

polar solvent will compete well with molecules and will occupy sites on the stationary phase. This will force compounds into the mobile phase, and result in faster elution/increased travel distance. ... As in other types of chromatography, the analytes exist in equilibrium between the stationary and mobile phases.

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Answer 2

Answer:

WCOT specifically is the primary type of capillary GC column for quantitative analysis: Higher resolution and shorter analysis time and allows greater ability to discriminate between components. ... Mobile phase - carrier gas (GC), usually an 'inert'gas, primarily pushes the material through the column.