| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid sending device for a liquid chromatograph capable of stably sending a liquid at a constant flow rate by altering a flow channel to reduce a pulsating flow without providing a dead volume. Ž<P>SOLUTION: The liquid sending device for the liquid chromatograph, having the pistons 3 and 4 subjected to reciprocating motion in pump chambers 1 and 2 having the inlet and outlet of the liquid and valves 5 and 6 for preventing the back flow of the liquid and sending the liquid to the outlet from the inlet by the reciprocating motion of the pistons 3 and 4, is provided with coned disc springs 20 and 21 exerting elastic force on the pistons 3 and 4. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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