N-Acetylneuraminic acid was determined by gas chromatography-mass spectrometry using selected ion-monitoring technique with N-[ZHS]acetylneuraminic acid as an internal standard. M-COOTMS fragments at m/z 624 of trimethylsilyl derivatives of N-acetylneuraminic acid and at m/z 627 of that of the inter
Determination of ketone body turnover in vivo with stable isotopes, utilizing gas chromatography/mass spectrometry
β Scribed by John M. Miles; W.Frederick Schwenk; Kelly L. McClean; Morey W. Haymond
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 463 KB
- Volume
- 141
- Category
- Article
- ISSN
- 0003-2697
No coin nor oath required. For personal study only.
β¦ Synopsis
A simple and reliable method for the determination of ketone body turnover in vivo using a primed, continuous infusion of [3,4-'"C2]acetoacetate is described. Mole percent enrichment of @-['3C2]hydroxybutyrate and [lrC,Jacetoacetate is determined by gas chromatography/mass spectrometry using electron-impact ionization and selected ion monitoring. Ketone body flux data are provided from preliminary dog experiments. The method is readily applicable to the study of ketone body metabolism in both laboratory animals and humans.
KEY WORDS: isotope dilution methods; gas chromatography/mass spuctrometry; stable isotopes; ketone bodies.
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