Journal of Analytical Chemistry

, Volume 57, Issue 4, pp 356–361 | Cite as

Determination of Phenolic Aldehydes in Cognacs and Wines by Capillary Electrophoresis: New Cognac Quality Markers

  • A. G. Panosyan
  • G. Mamikonyan
  • M. Torosyan
  • A. Abramyan
  • A. Oganesyan
  • E. S. Gabrielyan
  • A. Grigoryants
  • S. Mkhitaryan
  • B. V. Lapin

Abstract

A new method for the determination of vanillin, syringaldehyde, coniferaldehyde, and sinapaldehyde in wines and cognacs by high-performance capillary electrophoresis was developed. It simultaneously determines phenolic aldehydes within a few minutes using a diode-array detector. The method requires no sample preparation. The use of a borate buffer solution with pH 9.3 as a mobile phase increases the UV absorption intensity of these compounds and thus lowers the detection limit. The method is characterized by high reproducibility with dispersion coefficients from 4.47 to 6.89% for all of the analytes. The calibration graphs were linear in the concentration range of 0.30 to 57.0 mg/L. The age of cognacs can be determined by this method with an accuracy of 98.68% and a relative standard deviation of 10%.

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Copyright information

© MAIK “Nauka/Interperiodica” 2002

Authors and Affiliations

  • A. G. Panosyan
    • 1
  • G. Mamikonyan
    • 1
  • M. Torosyan
    • 1
  • A. Abramyan
    • 1
  • A. Oganesyan
    • 1
  • E. S. Gabrielyan
    • 1
  • A. Grigoryants
    • 1
  • S. Mkhitaryan
    • 2
  • B. V. Lapin
    • 3
  1. 1.Drug Agency of ArmeniaYerevanArmenia
  2. 2.Yerevan Cognac Factory, Pernod Ricard GroupYerevanArmenia
  3. 3.InterlabMoscowRussia

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