Rapid Determination of Total Thujone in Absinthe Using 1H NMR Spectroscopy
Joint Authors
Monakhova, Yulia B.
Lachenmeier, Dirk W.
Kuballa, Thomas
Source
International Journal of Spectroscopy
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-09-22
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
1H NMR spectroscopy is utilized to quantify total thujone (sum of α- and β-isomers) in absinthe.
For sample preparation, a simple dilution with buffer is required.
Thujone produces a distinct peak of the CH2 group in the cyclopentanone moiety in the 2.13–2.11 ppm range.
No overlap with other typical constituents such as anethole or fenchone occurs.
The detection limit of 0.3 mg/L is adequate to control the EU maximum limit.
The relative standard deviation was 6%, and linearity was observed from 1 to 100 mg/L.
Applicability was proven by analysis of 69 authentic absinthes.
The correlation between NMR and our previous method consisting of liquid-liquid extraction followed by GC/MS was significant (P<0.0001,R=0.93).
The simple and cheap NMR method can be used for rapid screening of absinthes for total thujone content while chromatographic techniques are recommended for more specific (α- and β-thujone isomers) analysis if required.
American Psychological Association (APA)
Monakhova, Yulia B.& Kuballa, Thomas& Lachenmeier, Dirk W.. 2011. Rapid Determination of Total Thujone in Absinthe Using 1H NMR Spectroscopy. International Journal of Spectroscopy،Vol. 2011, no. 2011, pp.1-5.
https://search.emarefa.net/detail/BIM-451592
Modern Language Association (MLA)
Monakhova, Yulia B.…[et al.]. Rapid Determination of Total Thujone in Absinthe Using 1H NMR Spectroscopy. International Journal of Spectroscopy No. 2011 (2011), pp.1-5.
https://search.emarefa.net/detail/BIM-451592
American Medical Association (AMA)
Monakhova, Yulia B.& Kuballa, Thomas& Lachenmeier, Dirk W.. Rapid Determination of Total Thujone in Absinthe Using 1H NMR Spectroscopy. International Journal of Spectroscopy. 2011. Vol. 2011, no. 2011, pp.1-5.
https://search.emarefa.net/detail/BIM-451592
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-451592