Results 21 to 30 of about 3,861,697 (308)

A Suitable Functionalization of Nitroindazoles with Triazolyl and Pyrazolyl Moieties via Cycloaddition Reactions

open access: yesMolecules, 2019
The alkylation of a series of nitroindazole derivatives with 1,2-dibromoethane afforded the corresponding N-(2-bromoethyl)- and N-vinyl-nitro-1H-indazoles.
Mohammed Eddahmi   +9 more
doaj   +1 more source

Characterization and Separation of Lignin from Kraft Black Liquor with Different Alcohols

open access: yesDrvna Industrija, 2022
The aim of this study was to investigate the properties of lignin obtained from black liquors of Scots pine (Pinus sylvestris L.) and European aspen (Populus tremula L.) woods cooked by Kraft method.
Ayhan Gençer   +3 more
doaj   +1 more source

ANALYTICAL CHEMISTRY. [PDF]

open access: yesJournal of the American Chemical Society, 1896
n ...
openaire   +2 more sources

Investigating the Visual/Analytic Shift in Students’ Knowledge in Chemistry [PDF]

open access: yes, 2015
We argue that the acquisition of chemistry expertise requires considerable conceptual changes, which among other things involve a change from reliance on visual-spatial thinking to the employment of analytic strategies.
Vosniadou, Stella   +6 more
core   +1 more source

Analytical Chemistry in Russia [PDF]

open access: yesFresenius' Journal of Analytical Chemistry, 1993
Research in Russian analytical chemistry (AC) is carried out on a significant scale, and the analytical service solves practical tasks of geological survey, environmental protection, medicine, industry, agriculture, etc. The education system trains highly skilled professionals in AC.
openaire   +2 more sources

Department of Chemistry Newsletter (1985, No. 8) [PDF]

open access: yes, 1985
The newsletter of the Department of Chemistry, published once or twice a year, highlights people, events, and facilities. Content includes brief articles on new faculty hires, faculty and staff retirements, obituaries, major facilities and equipment ...
Department of Chemistry
core   +1 more source

1,3–Bis(2–hydroxyiminomethylpyridinium) Propane as the Potential Reactivator of the Acetylcholinesterase Inhibited by Nerve Agents

open access: yesActa Medica, 2004
The oxime K005 [1,3–bis(2–hydroxyiminomethylpyridinium) propane dibromide] for the reactivation of the enzyme acetylcholinesterase (AChE) inhibited by cyclosarin and VX was tested.
Kamil Kuča, Vlastimil Dohnal
doaj   +1 more source

Immobilization of Chondroitin Sulfate A onto Monolithic Epoxy Silica Column as a New Chiral Stationary Phase for High-Performance Liquid Chromatographic Enantioseparation

open access: yesPharmaceuticals, 2021
Chondroitin sulfate A was covalently immobilized onto a monolithic silica epoxy column involving a Schiff base formation in the presence of ethylenediamine as a spacer and evaluated in terms of its selectivity in enantioseparation.
Ratih Ratih   +5 more
doaj   +1 more source

Department of Chemistry Newsletter (1982, No. 5) [PDF]

open access: yes, 1982
The newsletter of the Department of Chemistry, published once or twice a year, highlights people, events, and facilities. Content includes brief articles on new faculty hires, faculty and staff retirements, obituaries, major facilities and equipment ...
Department of Chemistry
core   +1 more source

NMR-Based Metabolomic Analysis of Spatial Variation in Soft Corals

open access: yesMarine Drugs, 2014
Soft corals are common marine organisms that inhabit tropical and subtropical oceans. They are shown to be rich source of secondary metabolites with biological activities.
Qing He   +9 more
doaj   +1 more source

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