Detecting animal by-product intake using stable isotope ratio mass spectrometry (IRMS)
نویسندگان
چکیده
منابع مشابه
Measurement of exogenous gamma-hydroxybutyric acid (GHB) in urine using isotope ratio mass spectrometry (IRMS)
Aim: The objective of the study was to check if gas chromatography/combustion/isotope ratio mass spectrometry (GC/C/IRMS) is a suitable method to differentiate between endogenous and exogenous GHB in urine. Methods: In the presented study, a controlled and monitored administration of 2.25 g GHB (Xyrem) to one participant was carried out. Spot urine samples were collected once before administrat...
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1. Stable urea isotopes can be used to study urea kinetics in humans. The use of stable urea isotopes for studying urea kinetic parameters in humans on a large scale is hampered by the high costs of the labelled material. We devised a urea dilution for measurement of the distribution volume, production rate and clearance of urea in healthy subjects and renal failure patients using the inexpensi...
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RECEIVED for review February 21, 1978. Accepted June 19, 1978. NMR spectra since two distinct peaks (6 -3.38, 3.78 ppm) caused by these protons are observed in CDCA vs. only one peak (6 -3.45 ppm) caused by the same protons in UDCA. T h e fingerprint region of the spectrum (6 1-2.5 ppm) and the relative position of the CIS methyl peak with respect to tha t of the doublet caused by the Cpl methy...
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ژورنال
عنوان ژورنال: The Veterinary Journal
سال: 2016
ISSN: 1090-0233
DOI: 10.1016/j.tvjl.2016.10.002