Results 21 to 30 of about 6,805 (187)

Characteristics of the root exudate release system of typical plants in plateau lakeside wetland under phosphorus stress conditions

open access: yesOpen Chemistry, 2020
In this study, the root exudates of wetland plants, Pistia stratiotes, black algae, and Cyperus alternifolius, exposed to six phosphorus concentration gradients (0, 0.2, 1, 5, 10, and 20 mg/L) were characterized.
Duan Xu, Zhao Yang-yi, Zhang Jian-cong
doaj   +1 more source

ISOTHERM ADSORPTION STUDY OF THE SOME DICARBOXYLIC ACID BY MANGANESE DIOXIDE [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2014
The adsorption process for Aliphatic and Aromatic dicarboxylic acid on manganese dioxide was studied briefly as a polluted material which produced in nature.
KHALEL I. AL-NIEMI   +2 more
doaj   +1 more source

Synthesis and characterization of new phthalimides and succinimides substituted with 1,3,4-oxadiazole ring [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2012
A series of new phthalimides and succinimides connected to 1,3,4-oxadiazole moiety were synthesized via multistep synthesis. The first step involved synthesis of six 5- substituted 2- amino-1,3,4-oxadiazoles by oxidative cyclization of substituted ...
Ahlam Marouf Al-Azzawi   +1 more
doaj   +1 more source

Geometry and conformations of benzenecarboxylic acids [PDF]

open access: yesJournal of the Serbian Chemical Society, 2004
The geometry, conformations and energy of mono-, di-, and tri-carboxylic derivatives of benzene were studied by means of the AM1 molecular-orbital method.
IVAN GUTMAN   +2 more
doaj  

Metabolite signatures and distribution patterns of processed pasta from fractionated whole wheat and Bambara groundnut using gas chromatography high-resolution time-of-flight mass spectrometry

open access: yesFood Chemistry Advances, 2023
This study investigated the metabolite signatures and distribution in cooked whole wheat pasta enriched with Bambara groundnut using gas chromatography high-resolution time-of-flight mass spectrometry (GC-HRTOF-MS).
Samson A. Oyeyinka   +6 more
doaj   +1 more source

Glycine–phthalic acid (1/1) [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2012
In the title compound, C2H5NO2·C8H6O4, the glycine mol-ecule exists as a zwitterion (2-aza-niumyl-ethano-ate) with a positively charged amino group and a negatively charged carboxyl-ate group. In the crystal, N-H⋯O and O-H⋯O hydrogen bonds link the components into layers parallel to the ab plane.
Balakrishnan, T.   +2 more
openaire   +2 more sources

Analysis of chemical signatures of alkaliphiles using fatty acid methyl ester analysis

open access: yesJournal of Pharmacy and Bioallied Sciences, 2017
Background: Fatty acids occur in nearly all living organisms as the important predominant constituents of lipids. While all fatty acids have essentially the same chemical nature, they are an extremely diverse group of compounds. Materials and Methods: To
Basha Sreenivasulu   +5 more
doaj   +1 more source

Seasonal variations of water-soluble organic carbon, dicarboxylic acids, ketocarboxylic acids, and α-dicarbonyls in Central Himalayan aerosols [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
Aerosol samples were collected from a high elevation mountain site (Nainital, India; 1958 m a.s.l.) in the central Himalayas, a location that provides an isolated platform above the planetary boundary layer to better understand the composition of the ...
P. Hegde, K. Kawamura
doaj   +1 more source

Sunscreen‐Inspired Nano‐Pesticide for UV‐Shielding and Laccase‐Responsive Delivery of Mancozeb With Enhanced Fungicidal Efficacy and Ecological Safety

open access: yesAdvanced Science, EarlyView.
The sunscreen‐inspired nano‐pesticide, MCB@URFSL, provides UV‐shielding, enhanced rainfastness, and laccase‐responsive delivery for improved fungicidal efficacy and high ecological safety. ABSTRACT Fungicides are a crucial tool for protecting crops and ensuring consistent food supply.
Jin Yan   +10 more
wiley   +1 more source

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

open access: yesBiofuels, 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   +2 more
wiley   +1 more source

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