Simple and rapid quantitative assay of 13C-labelled urea in human serum using liquid chromatography—atmospheric pressure chemical ionization mass …
T Tanigawa, Y Mizo-oku, K Moriguchi, T Suzuki… - … of Chromatography B …, 1996 - Elsevier
A simple and rapid quantitative method for 13C-labelled urea ([13C] urea) in human serum
was developed by using high-performance liquid chromatography-atmospheric pressure …
was developed by using high-performance liquid chromatography-atmospheric pressure …
An improved analytical method for the determination of urea nitrogen isotopomers in biological samples utilizing continuous flow isotope ratio mass spectrometry
JC Marini, MS Attene‐Ramos - … of Up‐to‐the‐Minute Research …, 2006 - Wiley Online Library
Over the past few years numerous dual inlet isotope ratio mass spectrometry (IRMS)
applications have been adapted to continuous flow systems which allow the automation of …
applications have been adapted to continuous flow systems which allow the automation of …
Measurement of urinary total 13C and 13C urea by isotope ratio mass spectrometry after administration of lactose [13C]‐Ureide
DJ Morrison, B Dodson… - Rapid communications in …, 1999 - Wiley Online Library
A method of measuring total 13C excreted in urine after oral administration of lactose [13C]‐
ureide was developed using isotope ratio mass spectrometry. Furthermore, a method to …
ureide was developed using isotope ratio mass spectrometry. Furthermore, a method to …
Determination of 13C and 15N enrichments of urea in plasma by gas chromatography–combustion isotope ratio mass spectrometry and gas chromatography–mass …
W Kulik, MJS Oosterveld, RM Kok, K De Meer - Journal of Chromatography …, 2003 - Elsevier
We describe a GC–MS and GC-c-IRMS method for the determination of labeled urea tracer
enrichments in plasma as a result of combined 13C-and 15N2-urea infusion experiments in …
enrichments in plasma as a result of combined 13C-and 15N2-urea infusion experiments in …
Rapid gas chromatographic-mass spectrometric analysis of [15N] urea: application to human metabolic studies
I Nissim, M Yudkoff, W Yang, T Terwilliger, S Segal - Clinica Chimica Acta, 1981 - Elsevier
A rapid gas chromatographic-mass spectrometric method for [15 N] urea analysis is
described which is based on the formation of a TFA-urea derivative. The method is …
described which is based on the formation of a TFA-urea derivative. The method is …
Simultaneous quantitative and isotopic analysis by isotope dilution.
M Berenbom, HA Sober, J White - 1950 - cabidigitallibrary.org
The method described is an extension of that of Rittenberg and Foster (Abst. 3271, Vol. 10)
and enables the isotope concentration to be measured without preliminary quantitative …
and enables the isotope concentration to be measured without preliminary quantitative …
Determination of urea in milk by liquid chromatography-isotope dilution mass spectrometry
X Dai, Y Zhao, M Li, X Fang, X Li, H Li, B Xu - Analytical letters, 2012 - Taylor & Francis
A definitive method based on liquid chromatography isotope dilution mass spectrometry (LC-
IDMS) has been developed for the determination of milk urea, an indicator of nutrition status …
IDMS) has been developed for the determination of milk urea, an indicator of nutrition status …
Determination of serum creatinine by isotope dilution mass spectrometry as a candidate definitive method
MJ Welch, A Cohen, HS Hertz, KJ Ng… - Analytical …, 1986 - ACS Publications
An Isotope dilution mass spectrometrlc (ID/MS) method for serum creatinine Is described
which uses creatlnlne-13C2 as the labeled Internal standard. Creatinine Is separated from …
which uses creatlnlne-13C2 as the labeled Internal standard. Creatinine Is separated from …
A rapid method for the determination of urea in blood and urine
JM Levine, R Leon, F Steigmann - Clinical Chemistry, 1961 - academic.oup.com
A rapid method for the determination of urea in blood and urine based upon the urea-p-
dimethylaminobenzaldehyde reaction is described. Results of determinations can be …
dimethylaminobenzaldehyde reaction is described. Results of determinations can be …
Method for urea analysis
K Mund, G Luft, U Gebhardt - US Patent 4,505,784, 1985 - Google Patents
US4505784A - Method for urea analysis - Google Patents US4505784A - Method for urea
analysis - Google Patents Method for urea analysis Download PDF Info Publication number …
analysis - Google Patents Method for urea analysis Download PDF Info Publication number …