The effects of pH and acid-modification for clays on adsorption are also examined. The pH curves of phosphate adsorption are peak-shaped and the dominant adsorption is considered as anion exchange reactions in pH < 8.5. When pH > 8.5the precipitation adsorption is dominant.
By two steps we have got purified HCG requried by Pharmacopoeia of China. To compare HCG with the DEAEcellulose chromatography,two methods are all reliable on HCG purification and depyrogenation. But the recovery in the method of phosphate adsorption was higher.
Influence of ethyl acetate and alkyl phosphate adsorption on the frictional properties of VC(100)
Various representations of soil acidification, phosphate adsorption and hydrology drawn from existing models and literature are used to address both the chemical interactions and the spatial hydrological flows within the context of a river catchment.
Batch-type experiments were used to determine the anion (fluoride, nitrate, sulfate, and phosphate) adsorption and desorption characteristics of an Ultisol from the Piedmont Province of Georgia.
Lecithin (a phospholipid surfactant) could be exuded into the rhizosphere soil volume, decreasing soil water content and hydraulic conductivity at any given soil water potential, and decreasing phosphate adsorption to soil particles.
In this study, the influence of sulphate and pH on phosphate adsorption on goethite and the availability to plants of adsorbed phosphate was examined.