Spectral Analysis of Alkyl Phosphate Anion Surfactants by  ̄( 31) P-NMR 磷酸酯类阴离子表面活性剂的~(31)P-NMR波谱分析
After modification with rare earth and phosphorus, the acidity density and strength in the pores of zeolite Y are improved effectively and the surface acidity is reduced and weakened suitably owing to the interaction of rare earth cation and phosphate anion. 经过稀土和磷复合改性,增强了沸石孔道的酸性中心,而表面活性中心在磷和稀土相互作用的改性中得以减少和弱化。
The effect of the phosphate anion on the stabilization of hydrate in magnesium oxychloride cement ( MOC) was investigated by the method of XRD. 通过XRD分析的方法,探讨了磷酸根离子对氯氧镁水泥水化物的影响。
Calculated interaction energies indicate that the change of nucleic acid conformation result from that the charge distribution of phosphate anion is subjected to polarization of the cation, The order cf effect of the cation is Na+ 计算的相互作用能表明,由于金属离子对磷酸阴离子电荷分布的极化,使核酸构象发生改变。其阳离子作用顺序为Na~+