Chromatographia

, Volume 41, Issue 11–12, pp 722–725 | Cite as

Determination of volatiles in spirits using combined stationary phases in capillary GC

  • A. Antonelli
  • M. Galli
Short Communications

Summary

The analysis of spirits with a single stationary phase is still an unsolved problem; the two amyl alcohols, ethyl acetate and acetal are not separated on a polar column, methanol and acetaldehyde coelute from an apolar column.

Trials with coupled columns of different polarities showed that optimum results were obtained with a 40 m capillary column, comprising 6 m of Carbowax 20 M, 12 m of 1∶1 Carbowax 20M:OV1 mixture and 30 m of PS 264.

Best results were achieved when a 1 m retention gap was used, injecting a small amount of sample and using a 7 cm syringe needle.

Key Words

Gas chromatography Mixed stationary phases Distilled beverages Direct analysis 

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Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1995

Authors and Affiliations

  • A. Antonelli
    • 1
  • M. Galli
    • 2
  1. 1.Istituto di Industrie AgrarieBolognaItaly
  2. 2.MEGA SrLLegnano (MI)Italy

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