CAJ | 학술논문

对阴离子性化合物在强阴离子交换毛细管电色谱中的保留行为进行了研究。发现样品在固定相上的吸附使样品的保留因子k变小，柱子的分离能力减小；而电压的增大，使酸性样品的k*也增大，并且电压的改变也能改变分离的选择性；样品保留因子的对数值随着缓冲液离子强度的对数值的增大而线性减小；样品在强阴离子交换毛细管电谱和毛细管区带电泳中有不同的保留行为。
대음리자성화합물재강음리자교환모세관전색보중적보류행위진행료연구。발현양품재고정상상적흡부사양품적보류인자k변소，주자적분리능력감소；이전압적증대，사산성양품적k*야증대，병차전압적개변야능개변분리적선택성；양품보류인자적대수치수착완충액리자강도적대수치적증대이선성감소；양품재강음리자교환모세관전보화모세관구대전영중유불동적보류행위。
The separation of anionic compounds by strong anion-exchange capillary electrochromatography (SAX-CEC) was carried out. It was found that the analytes could be absorbed onto the stationary phase, and this would lessen the retention factors (k) of the analytes, thus the column separation capability decreased. For the acidic compounds, k increased with increase of applied voltage. And the change of the applied voltage could provide different separation selectivity for the solutes. The separation with different eluent was studied. It showed that the logarithm of the capacity factor linearly decreased with increase of the logarithm of the ionic strength. The different retention behavior of the anionic compounds in SAX-CEC and CE was also studied