Buscar
Mostrando ítems 31-40 de 663
Adsorption and removal of phenoxy acetic herbicides from water by using commercial activated carbons: experimental and computational studies
(Elsevier Science, 2018-11)
In this study, commercial activated carbons (GAB and CBP) were successfully used for the removal of two phenoxy acetic class-herbicides, 4-chloro-2-methyl phenoxy acetic acid and 2.4-dichlorophenoxy acetic acid (MCPA and ...
Correlación entre una medida potenciométrica (ph) y la acidez titulable en vinagreCorrelation between potentiometric measurement (ph) and acidity titrate in vinegar
(Universidad de Antioquia, Facultad de Ciencias Farmacéuticas y AlimentariasGrupo de Nutrición y Tecnología de AlimentosMedellín, Colombia, 2021)
On the dissolution kinetics of humic acid particles. Effect of monocarboxylic acids
(Pergamon-Elsevier Science Ltd, 2008-05)
The dissolution kinetics of humic acid particles has been studied in batch experiments, and the effects of monocarboxylic (formic, acetic, and propionic) acids are reported. The dissolution rate of the particles is ...
Reaction pathway to the synthesis of anatase via the chemical modification of titanium isopropoxide with acetic acid
(American Chemical Society, 2008-01)
Anatase nanoparticles were obtained through a modified sol-gel route from titanium isopropoxide modified with acetic acid in order to control hydrolysis and condensation reactions. The modification of Ti(OiPr)4 with acetic ...
Indole acetic acid is responsible for protection against oxidative stress caused by drought in soybean plants: the role of heme oxygenase induction
(Taylor & Francis, 2014-11)
Objectives
This study was focused on the role of indole acetic acid (IAA) in the defense against oxidative stress damage caused by drought in soybean plants and to elucidate whether heme oxygenase-1 (HO-1) and nitric oxide ...
Day and blue light modify growth, cell physiology and indole-3-acetic acid production of Azospirillum brasilense Az39 under planktonic growth conditions
(Wiley Blackwell Publishing, Inc, 2021-05)
In this work, we evaluated the effects of light on growth, cell physiology and stress response of Azospirillum brasilense Az39, a non-photosynthetic rhizobacteria, under planktonic growth conditions. Methods and results: ...
Kinetics of nopyl acetate synthesis by homogeneously catalyzed esterification of acetic acid with nopolCinética de la síntesis de acetato de nopilo mediante esterificación de ácido acético con nopol homogéneamente catalizada
(Universidad de Antioquia, Facultad de IngenieríaCatálisis AmbientalMedellín, Colombia, 2020)
Preparation and characterization of modified starches obtained in acetic anhydride/tartaric acid medium
(Wiley VCH Verlag, 2020-03)
In the current contribution chemically modified starches are prepared by reaction of corn starch in hot acetic anhydride, containing tartaric acid. Characterization of the starch products shows evidence that the incorporation ...
Products and coke from the conversion of bio-oil acids, esters, aldehydes and ketones over equilibrium FCC catalysts
(Pergamon-Elsevier Science Ltd, 2013-12)
Reactivity and product distributions in the conversion of five different compounds representing typical species in bio-oils were studied over an equilibrium FCC catalyst at 500 °C during 60 s in a fixed bed reactor. Acetic ...