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Determination of ethyl glucuronide, a minor metabolite of ethanol, in human serum by liquid chromatography-electrospray ionization mass spectrometry

A rapid and sensitive determination procedure using liquid chromatography-electrospray ionization mass spectrometry (LC-ESI-MS) has been developed for the determination of ethyl glucuronide (EtG) in human serum. Samples were precipitated with methanol, centrifuged and the supernatant was evaporated...

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Bibliographic Details
Main Authors: Nishikawa, Mayumi (Author) , Tsuchihashi, H. (Author) , Miki, A. (Author) , Katagi, M. (Author) , Schmitt, Georg (Author) , Zimmer, Holger (Author) , Keller, Thomas (Author) , Aderjan, Rolf (Author)
Format: Article (Journal)
Language:English
Published: 20 April 1999
In: Journal of chromatography
Year: 1999, Volume: 726, Issue: 1, Pages: 105-110
ISSN:1873-376X
DOI:10.1016/S0378-4347(99)00008-0
Online Access:Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1016/S0378-4347(99)00008-0
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0378434799000080
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Author Notes:M. Nishikawa, H. Tsuchihashi, A. Miki, M. Katagi, G. Schmitt, H. Zimmer, Th. Keller, R. Aderjan
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Summary:A rapid and sensitive determination procedure using liquid chromatography-electrospray ionization mass spectrometry (LC-ESI-MS) has been developed for the determination of ethyl glucuronide (EtG) in human serum. Samples were precipitated with methanol, centrifuged and the supernatant was evaporated to dryness followed by reconstitution with distilled water. As mobile phase 30 mM ammonium acetate-acetonitrile (30:70, v/v) was utilized. The base peak observed at m/z 221 was the [M−H]− ion of EtG, which was detectable in satisfactory sense. The detection limit was 0.03 μg/ml in the selected ion monitoring mode. A calibration graph constructed for EtG in serum gave good linearity over the range from 0.1 to 25 μg/ml. This paper also presents the application of this LC-ESI-MS procedure to the analysis of authentic serum samples.
Item Description:Gesehen am 28.04.2021
Physical Description:Online Resource
ISSN:1873-376X
DOI:10.1016/S0378-4347(99)00008-0

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