Buscar
Mostrando ítems 21-30 de 1200
On the dissolution kinetics of humic acid particles: Effects of pH, temperature and Ca2+ concentration
(Elsevier Science, 2007-02)
The dissolution kinetics of humic acid particles has been studied in batch experiments by UV-vis spectrophotometry, and the effects of pH, temperature, stirring rate and Ca2+ concentrations are reported. The dissolution ...
Studies on the interaction between humic substances and conducting polymers for sensor application
(2005-01-01)
The interaction between humic substances and poly(o-ethoxyaniline) (POEA), a conducting polymer, was investigated for both solution and self-assembled films. The results have shown that the humic substances induce a doping ...
Studies on the interaction between humic substances and conducting polymers for sensor application
(2005-01-01)
The interaction between humic substances and poly(o-ethoxyaniline) (POEA), a conducting polymer, was investigated for both solution and self-assembled films. The results have shown that the humic substances induce a doping ...
SYNTHESIS, COLORFASTNESS EVALUATION AND UTILIZATION OF HUMIC ACID DERIVED DYES / PIGMENT
(Sociedad Chilena de Química, 2011)
Effect of pH, anions and cations on the dissolution kinetics of humic acid particles
(Elsevier Science, 2009-09)
The dissolution kinetics of solid humic acid (HA) particles under different conditions is reported and analyzed. The dissolution rate at pH 4 and 5 is very slow and several years may take to achieve equilibration. The rate ...
Soaking of Seedlings Roots in Humic Acid as an Effective Practice to Improve Eucalyptus Nutrition and Growth
(Taylor & Francis Group, 2022)
Sensing atrazine herbicide degradation products through their interactions with humic substances by surface-enhanced raman scattering
(2021-06-01)
In this work, we have developed a simple method to carry out the quantitative analysis of deethylhydroxyatrazine (DEHA), the most abundant metabolite of atrazine herbicide (ATZ), based on the surface-enhanced Raman scattering ...
Root ABA and H+-ATPase are key players in the root and shoot growth-promoting action of humic acids
(John Wiley & Sons Inc, 2019-10)
Although the ability of humic (HA) and fulvic acids (FA) to improve plant growth has been demonstrated, knowledge about the mechanisms responsible for the direct effects of HA and FA on the promotion of plant growth is ...