Summary
By connecting capillary columns of different polarity in series and by changing the temperature program gradient, a system of variable polarity is obtained. The working conditions can be adjusted to optimize separations of complex mixtures. Application to the analysis of essential oils of: lavender, thyme, lemon petit grain, bergamot, and tangerine, are reported.
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Dedicated to Prof. Dr. A. Liberti on the occasion of his 70th birthday.
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Cartoni, G.P., Goretti, G. & Russo, M.V. Capillary columns in series for the gas chromatographic analysis of essential oils. Chromatographia 23, 790–795 (1987). https://doi.org/10.1007/BF02311401
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DOI: https://doi.org/10.1007/BF02311401