Results 201 to 210 of about 2,139,344 (304)

Stable Isotope Tracer Technique and Mass Spectrometry

Journal of the Mass Spectrometry Society of Japan, 1978
openaire   +2 more sources

Exploratory Measurements of Singly Substituted and Clumped Isotopologues in Iodate Using Electrospray Ionization Mass Spectrometry. [PDF]

Rapid Commun Mass Spectrom
Lucarelli J, Bubas AR, Cox RM, Lehmann SB, Tripati A, Engelmann M, Conte ER.   +6 more
europepmc   +1 more source

Groundwater Tracers 8. Chlorine stable isotopes

Journal of Groundwater Hydrology
Takuma HASEGAWA, Kotaro NAKATA
openaire   +1 more source

Whole-body and intracellular arginine metabolism in hypertension: role of disease severity and sex. [PDF]

Am J Hypertens
Hüttl VN, Deutz NEP, Wierzchowska-McNew RA, Ruebush LE, Engelen MPKJ.   +4 more
europepmc   +1 more source

Stable silicon isotopes as a tracer for the biological pump

, 2013
openaire   +2 more sources

Discovery of the Cyclic Form of MRI pH‐Sensor Z‐OMPD Enables >5% 13C Hyperpolarization by SABRE

Angewandte Chemie International Edition, EarlyView.
With “c‐OMPD”, we discovered a previously unknown 5‐membered lactol structure that arises from the homoaldol condensation of the central metabolite pyruvic acid. We demonstrate that the cyclization equilibrium is of crucial importance for OMPD's function as MRI‐based pH sensor and achieve for the first time 13C polarization levels (>5%) by SABRE in the
Juanita Ferreira, Ivan A. Trofimov, Martin Grashei, Adriana Sacristán‐Martín, Alexander Huber, David Schleicher, Oleksiy Khavryuchenko, Franz Schilling, Andreas B. Schmidt, Max von Delius   +9 more
wiley   +1 more source

Energy spectrum-based correction of washout rates in dual-isotope ¹²³I-BMIPP/²⁰¹Tl imaging. [PDF]

Ann Nucl Med
Nakajima K, Makida S, Okamura M, Kawashiri MA, Shibutani T.   +4 more
europepmc   +1 more source

²H₂O labeling methods for bulk and single muscle protein synthesis measures, and measures of integrated muscle protein synthesis and breakdown rates: A pilot study. [PDF]

Physiol Rep
Højfeldt G, Helge BW, van Hall G, Schjerling P, Kjær M, Mackey AL, Burniston JG, Agergaard J.   +7 more
europepmc   +1 more source

Seasonal Fluctuations of Plastochromanol‐8 and α‐Tocopherol Amounts in the Leaves of Cecropia Trees

Journal of the American Oil Chemists' Society, EarlyView.
ABSTRACT Plastochromanol‐8 (PC‐8) is a homologue of γ‐tocotrienol with a longer side chain (eight instead of three isoprene units) and therefore also a representative of the tocochromanol (vitamin E) group. PC‐8 has been determined in various plants and seeds, with Cecropia sp. leaves showing unusually high levels.
Rosalie Ormos, Jörg Rau, Walter Vetter
wiley   +1 more source

Expanding the Trifluoroborate Toolbox: Pyridinium Scaffolds for PET Tracer Development. [PDF]

ACS Cent Sci
Wong AAWL, Perrin DM.
europepmc   +1 more source