Results 21 to 30 of about 68,150 (262)

Nontargeted biomonitoring of halogenated organic compounds in two ecotypes of bottlenose dolphins (Tursiops truncatus) from the Southern California Bight. [PDF]

open access: yes, 2015
Targeted environmental monitoring reveals contamination by known chemicals, but may exclude potentially pervasive but unknown compounds. Marine mammals are sentinels of persistent and bioaccumulative contaminants due to their longevity and high trophic ...
Aluwihare, Lihini I   +8 more
core   +3 more sources

Experimental Study of DI Diesel Engine Operational and Environmental Behavior Using Blends of City Diesel with Glycol Ethers and RME

open access: yesEnergies, 2019
An experimental investigation is performed in a single-cylinder direct-injection (DI) diesel engine using city diesel oil called DI1 and two blends of DI1 with a mixture of glycol ethers.
Theodoros C. Zannis   +3 more
doaj   +1 more source

Permitted daily exposure for diisopropyl ether as a residual solvent in pharmaceuticals [PDF]

open access: yes, 2018
Solvents can be used in the manufacture of medicinal products provided their residual levels in the final product comply with the acceptable limits based on safety data.
Evandri, Maria Grazia, Romanelli, Luca
core   +1 more source

Isobaric Vapour Liquid Equilibrium at 101.3 kPa for the Binary Mixtures 2-Methyl-2-Butene / Methanol and Isopentane / Methanol

open access: yesChemical Engineering Transactions, 2013
Due to the increased interest for using tertiary ethers as fuel additives (such as TAME – tert-amyl-methyl-ether synthesis), the research intensified to study its thermodynamic aspects.
M. Bernabeu Diaz   +4 more
doaj   +1 more source

Mass spectrometry-based fragmentation as an identification tool in lignomics [PDF]

open access: yes, 2010
The ensemble of all phenolics for which the biosynthesis is coregulated with lignin biosynthesis, i.e., metabolites from the general phenylpropanoid, monolignol, and (neo)-lignan biosynthetic pathways and their derivatives, as well as the lignin ...
Akiyama, Takuya   +11 more
core   +2 more sources

Transition-metal-free formal cross-coupling of aryl methyl sulfoxides and alcohols via nucleophilic activation of C-S bond

open access: yesNature Communications, 2020
Cross-coupling processes without the use of transition metals are challenging to achieve. Here, the authors show a transition-metal-free cross-coupling utilizing aryl(heteroaryl) methyl sulfoxides and alcohols to afford alkyl aryl(heteroaryl) ethers and ...
Guolin Li   +7 more
doaj   +1 more source

Stereoisomer libraries: Total synthesis of all 16 stereoisomers of the pine sawfly sex pheromone by a fluorous mixture-synthesis approach [PDF]

open access: yes, 2004
All 16 stereoisomers of the sex pheromone of pine sawfly (3,7,11-trimethylundecanol propanoate ester) have been synthesized on a 10- to 20-mg scale by a split-parallel fluorous mixture-synthesis approach.
Curran   +9 more
core   +3 more sources

Cyanovinylation of Aldehydes: Organocatalytic Multicomponent Synthesis of Conjugated Cyanomethyl Vinyl Ethers

open access: yesMolecules, 2021
A novel organocatalytic multicomponent cyanovinylation of aldehydes was designed for the synthesis of conjugated cyanomethyl vinyl ethers. The reaction was implemented for the synthesis of a 3-substituted 3-(cyanomethoxy)acrylates, using aldehydes as ...
Samuel Delgado-Hernández   +2 more
doaj   +1 more source

The Thermal degradation of Bisphenol A Polycarbonate in Air [PDF]

open access: yes, 2005
The thermal degradation of polycarbonate in air was studied as a function of mass loss using TGA/FTIR, GC/MS and LC/MS. In the main degradation region, 480–560 °C, the assigned structures of smaller molecules and linear molecules that evolved in air were
Jang, Bok Nam, Wilkie, Charles A.
core   +2 more sources

Complex of Chemical-technological and Sanitary-hygienic Quality Indicators of the New Pastry Products of Special Nutrition [PDF]

open access: yes, 2017
The complex of chemical-technological and sanitary-hygienic quality indicators of new pastry products of special nutrition was studied. The original recipes of meat pastries for special nutrition, enriched with biologically active components at the ...
Kotliar, Y. (Yevhenii)   +4 more
core   +2 more sources

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