Results 61 to 70 of about 37,547 (266)

Measurement of arachidonic acid in the plasma by gas-liquid chromatography-flame ionization using dihomo-gamma-linolenic acid as an internal standard.

Journal of Lipid Research, 1979
A gas-liquid chromatography-flame ionization method is described for measuring arachidonic acid in plasma using dihomo-gamma-linolenic acid as an internal standard.
J G Gerber, J S Barnes, A S Nies
doaj   +1 more source

Revisiting Securidaca longipedunculata Seed Oil: Applying NMR and Mass Spectroscopy to Confirm the Presence of 2‐Acetyl‐1,3‐Diacyl–sn‐Glycerols and Conjugated Hydroxydienoic Fatty Acids

Journal of the American Oil Chemists' Society, EarlyView.
The manuscript confirms and expands on previous reports concerning the presence of unusual conjugated hydroxydienoic fatty acids and acetyl‐TAG in the seed oil of Securidaca longipedunculata. The location of acetate only at sn‐2 of TAG was conclusively shown by high resolution NMR and hydroxy seed fatty acids are characterized.
Mark A. Smith, Jianfeng Zhu, Jin‐Yue Sun   +2 more
wiley   +1 more source

Environmental and Genetic Effects on the Composition of Palm Oil From Hybrid Plant Clones of Caiaué and Oil Palm

Journal of the American Oil Chemists' Society, EarlyView.
ABSTRACT The interspecific hybrids (IEH OxG) obtained from the crossing of Elaeis oleifera (Eo) and Elaeis guineensis (Eg) are resistant to some diseases that affect Eg in some regions of South America, and commercial growing in several countries has been established.
Rosemar Antoniassi, Ricardo Lopes, Sidney Pacheco, Allan Eduardo Wilhelm, Rui Alberto Gomes Junior, Adelia Ferreira de Faria‐Machado, Raimundo Nonato Vieira Cunha   +6 more
wiley   +1 more source

Wind tunnel measurement of flow and dispersion over urban area

EPJ Web of Conferences, 2017
Measurements of flow and dispersion over urban area model were conducted in the boundary layer wind tunnel in VZLU. Scale model of an industrial area with its residential neighborhood was equipped with ground-level emission source and the flow and ...
Michálek Petr, Zacho David
doaj   +1 more source

Liquid‐phase oxidation of furfural catalyzed by magnetically separable metal oxide nanoparticles deposited on silica gel

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Oxidation of furfural (FF), a bio‐based platform chemical, was investigated using a range of iron‐, vanadium‐ and iron–zinc‐oxalates supported on silica gel (FeVOx@silica and FeZnOx@silica, respectively) as precursor for FeV@silica and FeZn@silica oxide catalysts and H2O2 as a green oxidant.
Alexander Pokutsa, Alina Mariana Balu, Rafael Luque   +2 more
wiley   +1 more source

Chemical Composition of the Essential Oil of the Flowering Aerial Parts of

Natural Product Communications, 2013
The essential oil composition of the flowering aerial parts of Pimpinella monoica Dalzell was analyzed by gas chromatography equipped with flame ionization detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC/MS).
Rajesh K. Joshi
doaj   +1 more source

Anthropogenic hydrocarbons in sediments of the northeastern Havana seaboard

Ciencias Marinas, 2011
The presence of petrogenic hydrocarbons was evaluated in surface sediments from the northeastern Havana littoral (Cuba). Different geochemical biomarkers were used to differentiate between biogenic and anthropogenic hydrocarbons.
EY Companioni-Damas, AC Nuñez-Clemente, MO Cora-Medina, M Rosabal-Rodríguez, L González-Bravo, R Marbot-Ramada, R Montes de Oca-Porto, MA Díaz-Díaz   +7 more
doaj   +1 more source

Metabolic fate of drugs of abuse and new psychoactive substances: A pilot study on a novel workflow using a zebrafish embryo model combined with human microdosing

British Journal of Clinical Pharmacology, EarlyView.
Aim The aim of this study was to develop a novel workflow to identify human urine biomarkers for drugs of abuse and new psychoactive substances. Metabolites of amphetamine, cocaine, LSD, MDMA, methamphetamine, THC, MDMB‐CHMICA, and MDPPP were first identified in a zebrafish embryo (ZE) metabolism study followed by comparison to most abundant human ...
Simon K. Wellenberg, Tanja M. Gampfer, Lea Wagmann, Philip Schippers, Jennifer Herrmann, Rolf Müller, Folker Westphal, Markus R. Meyer   +7 more
wiley   +1 more source

Small‐Crystal SAPO‐34 Preparation by Regulating Precursor Mixing Temperature for Methanol‐to‐Olefins Conversion

Carbon and Hydrogen, EarlyView.
By tuning the initial mixing temperature from 0°C to 80°C, the crystal size of SAPO‐34 can be adjusted from micro to nanoscale, reflecting a shift from classical single‐crystal growth at low temperatures to non‐classical polycrystalline aggregation at high temperatures.
Guanghua Liang, Junlan Guo, Xi Zhang, Ruiying Wang, Fene Gao   +4 more
wiley   +1 more source

Impact of Intermediate Wheatgrass as an Adjunct Ingredient on the Chemical Composition and Development of Aroma Compounds in Sake Brewing

Cereal Chemistry, EarlyView.
ABSTRACT Background Replacing a portion of polished rice with intermediate wheatgrass (IWG) could diversify raw materials for sake, but its effects on composition and fermentation outcomes are not well characterized. The objective of this study was to quantify how adjunct form (whole vs.
Takehiro Murai, Curtis Payne, George Amponsah Annor   +2 more
wiley   +1 more source