GAS-LIQUID CHROMATOGRAPHY AND THE PERFUMER 375 (a) (on •.•.s.&• •ooV• ') • .t ! (b) Figure 2 A "mixed" peak revealed by forming a dehvative of one of its components.

376 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS of the suspect peak may be so radically altered that it becomes difficult to sort out the exact peak migrations which have taken place. Fig. $ shows differences between chromatograms of the same oil of lavendin on Apiezon L and on polypropylene sebacate. The reversal of elution order of linalol (a) (b) t•igure $ Chromatograms of the same oil of ladendin on two stationary phases of different polarity. Chart speed in $(a) 6" per hour in $(b) 8" per hour.

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