| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pump for liquid chromatograph capable of reducing pulsation even when discharge flow quantity is changed, and the liquid chromatograph. <P>SOLUTION: A pump controller makes a first plunger pump and a second plunger pump connected in series or in parallel with each other alternately perform suction, compression operations approximately in a fixed period, makes a pressure chamber of at least one plunger pump into a higher pressure state than the other, and adjusts lift amounts of the first plunger and the second plunger to perform flow control. <P>COPYRIGHT: (C)2012,JPO&INPIT |
