Two surface soils (Patua and Tokomaru) of contrasting mineralogy were incubated with several levels of either CaCO 3 or HC1. The effects of ionic strength on pH, on surface charge, and on the adsorption of phosphate and sulphate were measured in three concentrations of NaCl. The pH at which...
The present invention relates to a composite of amorphous calcium phosphate or amorphous calcium phosphate fluoride stabilized by phosphopeptides or phosphoprotein (PP), high calcium ion content greater than about 30 moles of calcium per PP1 mole It will provide a composite body having a. Higher tha...
This contrasts with previously observed effects on phosphate. It is suggested that the difference may have arisen because appreciable desorption of fluoride occurs by exchange with hydroxyl ions rather than by escape of the fluoride ion together with its counter ion. 展开 ...
were grown under greenhouse conditions with nitrogen and phosphorus fertilization individually, or both, and with a large amount of organic matter and CaSO4 in the soil superficie. The irrigation water was strongly brackish. In the plants, nitrate and phosphate showed an obvious mobility, whereas ...
Theionic strengthof the buffer played a critical role in the eradication. Treatment ofE.colisuspended in water with a conductivity of 0.2 mS/cm led to a total bacterial inactivation with twice the number ofpulsesneeded with in phosphate buffer (1 mS/cm) (but at a lower energy cost). The...
D Dorjnamjin,M Ariunaa,YK Shim - 《International Journal of Molecular Sciences》 被引量: 134发表: 2008年 Using the solvation parameter model to characterize functionalized ionic liquids containing the tris(pentafluoroethyl)trifluorophosphate (FAP) anion Ionic liquids (ILs) containing the tris(penta...
In this IL molecule, delocalization of the charge along the O2S–N–SO2 core of [NTf2]− reduces the ion–ion interactions; thereby, allowing the formation of low melting point and viscosity compared to ILs with [PF6]−, tris(pentafluoroethyl)triflurophosphate, [FAP]−, or trifluro...
Cellulose is one of the most abundant natural polymers in the nature, which has many attractive advantages, such as renewability, biodegradability, and biocompatibility. However, due to the strong hydrogen bond network and hierarchical structure, cellulose is extremely difficult to be dissolved and proc...
(pentafluoroethyl)trifluorophosphate anion at a charged sapphire substrate (Mezger et al.2008), which also showed the formation of layers of ions. Using SFA, Perkin and co-workers not only confirmed the layering of ions, but also demonstrated that as the alkyl chains of her ionic liquids ...
A new green procedure has been applied to prepare TiO2 nanocomposite in polyvinyl alcohol (PVA) matrix using an aqueous micelle solution of ionic liquid 1-methyl-3-octylimidazolium bromide by determining critical micelle concentration (CMC). The COSMO-SAC model has been used to calculate the activi...