Table 2 effect of different elution solvent on recoveries .

不同洗脱剂对回收率的影响。

A substance used as a solvent in the process of elution .

洗提液在洗提过程中作为溶剂的物质。

The effects of initial buffer composition and ph on the gradient elution have been investigated .

考察了梯度洗脱分离时，起始缓冲液组成及ph值对分离的影响。

The dynamic experiments further show that 20 % ethanol and 20 % isopropanol are good for their high elution speed and large distribution ratio of6-apa in the liquid phase etc.

通过动态解吸实验，进一步说明20%乙醇和20%异丙醇的解吸速率快，洗脱集中，液相的6-apa分配系数大。

Microprocessor controlled systems are capable of accurately delivering a mobile phase of either constant ( isocratic elution ) or varying composition ( gradient elution ) , according to a defined programme .

微处理器控制系统可以根据确定的程序准确地传输恒定的移动相（恒溶剂洗脱法）或变化组分的移动相（梯度洗脱法）。