By characterizing the phase, the behavior of compounds on the phase may be better predicted. One way to characterize the phase is to compare its selectivity against a well- documented column such as DB-1.Gay SunPhil Stremple
The regression results for the four column stationary phases is presented in Table 3. The models include the cross product ofTBand logKow, which has not
The fundamental arrival rate λ of this DBMAP can then be defined as(2)λ=πa∑i=1∞iDie,where πa is the stationary probability vector of D in (1), i.e. πaD = πa, πae = 1, and e is assumed in this paper to be the all-1 column vector with the designated dimension. ...
特殊选择固定液 selective stationary phase 梯度洗脱 gradient elution 梯度洗脱装置 gradient elution device 梯度液相色谱 gradient liquid chromatography 体积排斥理论 size exclusion theory 体积排斥色谱size exclusion chromatography 体积色谱法 volumetric chromatography 填充毛细管柱 pack...
bicolor was run through a column using silica gel (60120 mesh) as the stationary phase and various dilutions of hexane, chloroform and ethanol as the mobile phase. Eight major fractions monitored with thinlayer chromatography were obtained but the staining compound was contained in the reddishbrown...
滴定 titration 容量分析法 volumetric analysis 化学计量点 stoichiometric point 等当点 equivalent point 电荷平衡 charge balance 电荷平衡式 charge balance equation 质量平衡 mass balance 物料平衡 material balance 质量平衡式 mass balance equation 酸碱滴定法 酸碱...
Barbato F., Martino D., Grumetto L., LaRotonda M. I. Retention of quinolones on human serum albumin and α1-acid glycoprotein HPLC column: relationships with different scales of lipophilicity, European Journal of Pharmaceutical Sciences, 2007, 30: 211-219....
Capillary columnPoly-(1-trimethylsilyl-1-propyne) (PTMSP)Modified stationary phaseIn this work, we report the study of properties of capillary columns with a porous layer of the functionalized polymer prepared via oxidation of poly-(1-trimethylsilyl-1-propyne) (PTMSP) by nitrous oxide. It was ...
Althoughthe chromatograms of individual resins and their blends are independentof the cooling rate, it will be shown that sample volume (column loading)and heating rate during the elution cycle affect the peak separationof the components in binary blends.Alghyamah...
Complete separation of enantiomers has been achieved on a Chiralcel OD-H analytical column (250 × 4.6 mm) using n-hexane–isopropanol (80:20, v/v) as the mobile phase at a flow rate of 1.0 mL/min under UV and optical rotation detection. The effect of the mobile phase and temperature ...