W. Engelhardt, H.‐P. Sallmann,
... ácidos grasos volátiles y también agua marcada con tritio fueron resorbidos de la panza del guanaco con ... oveja. Aumentando la difusión de agua marcada con tritio se acrecentaba la resorción de los ácidos grasos ...
Tópico(s): Effects of Environmental Stressors on Livestock
2010 - Wiley | Zentralblatt für Veterinärmedizin Reihe A
Christopher L. Shaffer, Mithat Gunduz, Bruce A. Thornburgh, Gwendolyn D. Fate,
... beagle dogs using [ 3 H]1. Initially, 3-tritio-furanopyridine 1 ([ 3 H]1a) was evaluated in ... be both chemically and metabolically stable, yielded 7-tritio- N -(3 R )-1-azabicyclo[2.2.2] ...
Tópico(s): Synthesis and Biological Evaluation
2006 - American Society for Pharmacology and Experimental Therapeutics | Drug Metabolism and Disposition
Alan R. Day, Richard J. Freer,
... H 2 to yield the intrinsically labeled [p‐tritio‐Phe] 4 ‐Nle 5 ‐enkephalin. The labeled peptide ( ...
Tópico(s): Chemical Synthesis and Analysis
1978 - Wiley | Journal of Labelled Compounds and Radiopharmaceuticals
Abstract The incorporation of p -tritio-cinnamic acid [3- 14 C] into the flavonols kaempferol and quercetin in pea seedlings ( Pisum sativum ) and into the isoflavones formononetin ... of the labelled formononetin to 3-nitro-5-tritio-4-methoxybenzoic acid proved that the tritium had ...
Tópico(s): Seed and Plant Biochemistry
1969 - Elsevier BV | Phytochemistry
Colin Eaborn, P. Golborn, Robert Ernest. Spillett, R. Taylor,
... or -2-tritionaphthalene, are as follows: (a) 1-tritio-compounds; (X =) 2-Me 300; 3-Me 2· ... 0·18; 8-I 0·066; (b) 2-tritio-compounds; (X =) 1-Me 270; 3-Me 3· ...
Tópico(s): Chemistry and Chemical Engineering
1968 - Royal Society of Chemistry | Journal of the Chemical Society B Physical Organic
... similarity to glyoxylate. Other carboxylic acids were inactive. Tritio-acetyl-CoA-yielding side reactions were excluded. Pyruvate ... synthesized enzymatically from either chemically or enzymatically prepared tritio-acetyl-CoA was recognized as (S)-2- hydroxy- ...
Tópico(s): Biochemical and Molecular Research
1967 - Wiley | European Journal of Biochemistry
... intercambio de cationes es determinante; no se detectó tritio con los bajos niveles de <sup>14</sup> ...
Tópico(s): Geochemistry and Geologic Mapping
2016 - National University of Colombia | Earth Sciences Research Journal
... salterio de las ovejas para agua marcada con tritio era una vez y media mayor que la ...
Tópico(s): Animal Behavior and Welfare Studies
2010 - Wiley | Zentralblatt für Veterinärmedizin Reihe A
Christian Herrera, Juan José Pueyo, Alberto Sáez, Blas L. Valero‐Garcés,
... primavera-verano (octubre-marzo). Los altos contenidos de tritio (3H) medidos en las aguas de los manantiales ...
Tópico(s): Karst Systems and Hydrogeology
2006 - National Geology and Mining Service | Revista geológica de Chile
Ulfilas Boldes, A Golberg, J. Marañón Di Leo, J. Colman, Ana Elena Scarabino,
... have been tested: single and double row herbaceous (Tritio secale) shelterbelts, and two different artificial wooden fences, ...
Tópico(s): Plant Water Relations and Carbon Dynamics
2002 - Elsevier BV | Journal of Wind Engineering and Industrial Aerodynamics
A simple and highly stereoselective synthesis of [4α-2H]- and [4α-3H]-Δ5-3β-hydroxysteroids is presented. Palladium(0)-mediated borodeuteride reduction of readily-available cholest-5-en-3β,4β-diol cyclic carbonate provides [4α-2H]- Δ5-and Δ4-cholesterol in a 12:1 ratio. Reduction of [4α-3H]-cholest-5-ene-3β,4β-diol cyclic carbonate with NaB1 H4 and Pd(0) resulted in [4β-3H]-cholesterol.
Tópico(s): Chemical Reactions and Isotopes
1991 - Elsevier BV | Tetrahedron Letters
... 1986) 211–217). Through feeding studies with 2-tritio-Δ23- and Δ24-24-methyllanosterol, 24-tritiolanosterol and [ ...
Tópico(s): Phytochemical compounds biological activities
1990 - Elsevier BV | Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism
Manouchehr Saljoughian, Hiromi Morimoto, Philip G. Williams,
... tritiated or deuteriated methyl iodide has been elaborated. Tritio-dehalogenation of trichloromethyl biphenyl-4-yl ether with ...
Tópico(s): Medical Imaging Techniques and Applications
1990 - | Journal of the Chemical Society. Perkin transactions I/Journal of the Chemical Society. Perkin transactions. I
W. David Nes, Sihua Xu, Edward J. Parish,
Mycelia of Gibberella fujikuroi metabolized 2-tritio-24(R,S), 25-epiminolanosterol, a novel fungal sterol biosynthesis inhibitor that regulates delta 24-sterol methyltransferase, to 25-aminolanosterol (a new ...
Tópico(s): Microbial Natural Products and Biosynthesis
1989 - Elsevier BV | Archives of Biochemistry and Biophysics
H. H. Kaegi, Joseph I. DeGraw,
... with lithium borotritide, followed by reoxidation of the tritio alcohol ( 2 ). Condensation of aldehyde ( 3 ) with triethyl ...
Tópico(s): Carbohydrate Chemistry and Synthesis
1981 - Wiley | Journal of Labelled Compounds and Radiopharmaceuticals
Ralph E. Purdy, R. Julien, Alan S. Fairhurst, Michelle D. Terry,
... la toma y liberación de norepinefrina marcada con tritio ( 3 H‐NE) por parte de neuronas adrenérgicas ...
Tópico(s): Neuroscience and Neuropharmacology Research
1977 - Wiley | Epilepsia
Burkhard Meßner, Hermann Eggerer, J. W. Cornforth, R. Mallaby,
... also present and they converted the liberated deuterio-tritio-acetyl-coenzyme A into 2S-malate, which was ...
Tópico(s): Microbial Metabolic Engineering and Bioproduction
1975 - Wiley | European Journal of Biochemistry
Avner Rotman, John W. Daly, Cyrus R. Creveling,
... the bensylic position. Preparation of deutero‐ and/or tritio‐labeled 2,4,5‐trihydroxyphenethylamine (6‐hydroxydopamine). α‐ ...
Tópico(s): Boron Compounds in Chemistry
1975 - Wiley | Journal of Labelled Compounds
Donald J. Reed, J. Vimmerstedt, D. M. JERINA, John W. Daly,
... and 62% of the tritium. When the 4-tritio-substrate contains adjacent deuteriums the retention of tritium ...
Tópico(s): Plant and fungal interactions
1973 - Elsevier BV | Archives of Biochemistry and Biophysics
C.J. Secret, John R. Hadfield, C. T. Beer,
... specific activity was prepared by proton exchange with tritio-trifluoroacetic acid. The compound was used to study ...
Tópico(s): Pharmacogenetics and Drug Metabolism
1972 - Elsevier BV | Biochemical Pharmacology
Sven Hammarström, Bengt Samuelsson,
... sphingosine and N (2′D-hydroxy docosanoyl) 3-tritio D-erythro-trans sphingosine were prepared. A mixture ...
Tópico(s): Drug Transport and Resistance Mechanisms
1970 - Elsevier BV | Biochemical and Biophysical Research Communications
Carmine Coscia, Luigi Botta, Rocco Guarnaccia,
... mevalonate. Gentiopicroside obtained in the 2R and 2S-tritio mevalonate incorporations had the same 3H14C ratio as ...
Tópico(s): Plant biochemistry and biosynthesis
1970 - Elsevier BV | Archives of Biochemistry and Biophysics
Colin Eaborn, Paula Jackson, Richard J. K. Taylor,
... rates at 25·0° of detritiation of 4-tritio-m-xylene and of cleavage (desilylation) of p- ...
Tópico(s): Chemical Reactions and Mechanisms
1966 - Royal Society of Chemistry | Journal of the Chemical Society B Physical Organic
J Renson, John W. Daly, Herbert Weissbach, Bernhard Witkop, Sidney Udenfriend,
Non-heme mono-iron (NHMI) dioxygen (O2) activating enzymes are widely distributed in nature. They are involved in many fundamental biological pathways, and catalyze a stunningly broad array of oxidative reactions, including some of the most challenging chemical transformations, such as hydroxylation and halogenation on unactivated carbon-hydrogen bonds and carbon-carbon (C(sp2)-C(sp3)) bond formation. This chemical versatility is achieved by the exquisite control of O2 activation by the mono-iron centers ...
Tópico(s): Enzyme-mediated dye degradation
1966 - Elsevier BV | Biochemical and Biophysical Research Communications
Tópico(s): Chemical Analysis and Environmental Impact
1963 - Elsevier BV | Journal of Pharmaceutical Sciences
K. J. M. Andrews, F. Bultitude, E. Anthony Evans, Michael Gronow, RM Lambert, D.H. Marrian,
K. J. M. Andrews, F. Bultitude, E. A. Evans, M. Gronow, R. W. Lambert and D. H. Marrian, J. Chem. Soc., 1962, 3440 DOI: 10.1039/JR9620003440
Tópico(s): Chemical Synthesis and Analysis
1962 - Chemical Society | Journal of the Chemical Society (Resumed)
... of randomly labeled C 14 -tetracycline and 7-tritio-tetracycline following intraperitoneal and oral administration in the ...
Tópico(s): Pharmacological Effects and Toxicity Studies
1960 - American Society for Pharmacology and Experimental Therapeutics | Journal of Pharmacology and Experimental Therapeutics
Henry D. Hoberman, Amedeo F. D’Adamo,
Tópico(s): Analytical Chemistry and Chromatography
1960 - Elsevier BV | Journal of Biological Chemistry
Tópico(s): Nuclear Physics and Applications
1959 - Springer Science+Business Media | The Science of Nature
... technique described by Glascock for counting tritium as tritio- butane was examined for the effect of the ...
Tópico(s): Chemical Reactions and Isotopes
1961 - Pergamon Press | The International Journal of Applied Radiation and Isotopes