Determination of equilibrium solubility of doxifluridine in various media and its apparent oil/ water partition coefficient by HPLC 高效液相色谱法测定去氧氟尿苷在不同介质中的平衡溶解度和表观油水分配系数
Determination of equilibrium solubility and partition coefficient of glipizide 格列吡嗪油水分配系数和平衡溶解度的测定
Fluor-hydroxyapatite ( FHA) coating has a more promising application future due to its smaller solubility, smaller thermal expansion coefficient and better bioactivity than hydroxyapatite coating. 含氟羟基磷灰石(FHA)涂层由于比羟基磷灰石涂层的溶解度低、热膨胀系数小且生物活性好,有着更为广泛的应用前景。
Solubility of Antioxidant 1010 in Low Carbon Alcohols and its Activity Coefficient Models 抗氧剂1010在低碳醇中溶解度与活度系数模型
The model was used to fit the release profiles of three actives with different solubility, and the diffusion coefficient and dissolution rate constant were obtained. 用溶解度不同的活性物释放数据对方程进行拟合并求得各组分在多孔聚合物基质中的有效扩散系数和溶解速率常数。
Determination of Equilibrium Solubility and Apparent Oil/ Water Partition Coefficient of Daidzein By HPLC HPLC法测定大豆苷元的平衡溶解度和表观油水分配系数
OBJECTIVE The solubility in different solvents, the oil/ water detached coefficient and pKa value of genistein were determined for the study of its absorption in vivo. 目的:测定染料木黄酮在不同溶剂中的溶解度、油/水分配系数、pKa值。
Use of solubility parameters of vehicles to predict percutaneous permeability coefficient of testosterone through rat skin 睾酮在不同介质中经皮渗透系数的预测
HPLC method was developed for the assay of ACVP. The solubility of ACVP in different medium and apparent oil/ water partition coefficient were determined by HPLC. 建立了ACVP的体外分析方法,HPLC法测定了ACVP在不同介质中的溶解度和表观油/水分配系数。
Some physical and chemical properties of soybean isoflavones such as state, flavor, melting point, solubility, maximum absorption length of ultraviolet spectrometry, molar extinction coefficient, stability, hydrolysis and esterification were reviewed in this paper. 综述了大豆异黄酮的状态、风味、熔点、溶解性、紫外最大吸收波长、摩尔消光系数、稳定性、水解、酯化等物理、化学性质。
During the preformulation study, the drug solubility, oil/ water partition coefficient and melting point were determined. 在处方前研究中,测定了药物的溶解度、熔点及油水分配系数;
The Relationship between Water Solubility and Partition Coefficient of Aliphatic Alcohols and Topological Indices 脂肪醇的溶解度、分配系数与拓扑指数的相关性氢氧化物溶解度的规律性
Finally, by investigating the effects of solvent viscosity, molecular volume and solubility parameter on pure solvent permeability coefficient, studies established experimental model of pure solvent permeability coefficient and these parameters. 最后,实验考察了粘度、摩尔体积以及溶解性参数对纯溶剂透过系数的影响,拟合出透过系数与这些参数的关系式。
A correlation equation of solubility has been proposed by using Kirkwood-Buff s solution theory and the Flory-Huggins activity coefficient equations. 运用Kirkwood-Buff溶液理论和Flory-Huggins活度系数方程,建立了溶解度关联方程。
The equilibrium absorption studies indicate that the permselectivity of the anion exchange membrane is related not only to the component solubility, but mean diffusion coefficient as well. 三种抗衡离子膜的平衡吸收实验表明,该阴离子膜的选择渗透性不仅与醇水在膜中的溶解度有关,而且取决于平均扩散系数。
Study on Solubility and Volumetric Mass Transfer Coefficient of Dimethyl Ether in Liquid Paraffin 二甲醚在液体石蜡中的溶解度和体积传质系数的研究
Determine the physical and chemical constans of genistein The solubility in different solvents, the oil/ water detached coefficient and pKa value of genistein were determined by UV spectrophotometry. 实验测定了染料木黄酮在不同溶剂中的溶解度、不同pH值下的油/水分配系数(HBL)和pKa值。
Determination and estimation of water solubility and n-octanol/ water partition coefficient for substituted aromatic ketone and aldehyde 芳香族醛酮化合物溶解度和分配系数的测定与估算
The selectivity, solubility, distribution coefficient and extracted concentration of ethanol under different conditions were investigated. Results indicated that the solubility of ethanol increased with pressure, temperature and the ethanol concentration in the liquid phase under the supercritical conditions. 同时,分析了不同条件下超临界丙烷的萃取效果,结果表明:在超临界条件下,随着温度、压力和液相乙醇浓度增加,乙醇的溶解度增大。
The relationships among water solubility ( Sw), n-octanol/ water partition coefficient ( Kow), organic carbon sorption constant in soil ( K ∝) and bioconcentration factor ( Kb, or BCF) of 147 Kinds of pesticides and other organic compounds were discussed in this paper. 农药和其它有机化合物的水溶解度、正辛酸/水分配系数、有机碳吸附常数和生物浓缩因子等物化参数之间存在着明显的相关性。
Using solubility model and S-H activity coefficient equation, the parameters of the solubility equation were obtained by correlating the solubility data. The thermodynamic model of the calculating solubility of p-aminophenol was obtained. 用溶解度模型和S-H活度系数方程对实验数据进行回归,得出了模型计算所需要的二元交互作用参数lij,建立了计算对氨基苯酚溶解度的热力学模型,回归及计算结果与实验值符合良好。
Determination of Dissociation Constant, Apparent Solubility and Apparent Partition Coefficient of Huperzine A 石杉碱甲的解离常数、表观溶解度和表观油/水分配系数的测定
The success of the novel anode structure lies in that the solubility and diffusion coefficient of CO2 in the water-proof oil DMS are higher than in methanol-water solution. PLSE这种阳极结构的成功之处在于CO2在这种防水油DMS中的溶解度和扩散系数都要高于在甲醇水溶液中的溶解度和扩散系数。
The decrease of gas permeability is largely due to the decrease of diffusion coefficient while the solubility coefficient was constant. 溶解度系数基本不变,扩散系数的下降导致气体渗透系数下降。
The solubility of FCV in water. 0.9% NaCl. different physiological pH media and the apparent partition coefficient in n-octanol/ H2O system were determined. 测定了FCV在水、0.9%NaCl及各种pH范围介质中的溶解度和正辛醇/水系统的油水分配系数。
The relative extent of lipid solubility and water solubility was defined as lipid water partition coefficient. 脂溶性和水溶性的相对大小一般以脂水分配系数表示。