posted by noha .
The percent water in methyl alcohol can be determined by gas chromatography using
a capillary column coated with a non-polar stationary phase and a thermal
conductivity detector. A series of calibration standards yielded the following results:
Water content (% w/w) Peak height (arbitrary units)
Why are chromatographic peaks broader than would be expected solely on
the basis of the random nature of solute migration through a chromatographic