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Chromatographia

, Volume 72, Issue 9–10, pp 999–1004 | Cite as

Determination of Diacetyl in Butter and Air Samples by SPME Coupled with GC–MS

  • Yong Chen
  • Robert E. Shirey
  • Leonard M. Sidisky
Full Short Communication

Abstract

A solid phase microextraction-gas chromatography-mass spectrometry method was developed to determine diacetyl in butter samples. The extraction was performed for 5 min at 37 °C using a polydimethylsiloxane/divinyl benzene fiber. The method had a linear range of 0.024–11.2 ppm with limit of detection of 0.0078 ppm. Air sampling of diacetyl using solid phase microextraction was also developed to estimate diacetyl concentration in air. The extraction was performed by exposure of a polydimethylsiloxane fiber to air for 2 min. This method had linear range of 0.2–22 ppm (v/v) with limit of detection of 0.05 ppm.

Keywords

Gas chromatography–mass spectrometry Solid phase microextraction Diacetyl Isotope dilution 

Notes

Acknowledgments

The authors would like to thank Jamie Brown for providing diacetyl standards and popcorn samples.

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Copyright information

© Vieweg+Teubner Verlag | Springer Fachmedien Wiesbaden GmbH 2010

Authors and Affiliations

  • Yong Chen
    • 1
  • Robert E. Shirey
    • 1
  • Leonard M. Sidisky
    • 1
  1. 1.SupelcoBellefonteUSA

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