LIQUID SENDING APPARATUS, LIQUID CHROMATOGRAPH, AND OPERATION METHOD OF LIQUID SENDING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a liquid sending apparatus for a liquid chromatograph capable of obtaining an accurate analyzing result by sending a liquid in an accurate flow rate reduced in pulsating flow.

SOLUTION: A judging point is provided before the measured pressure value of a cylinder pressure detector and the measured pressure value of a discharge pressure detector coincide with each other in order to prevent the erroneous operation due to a measuring error when it is judged that the compression of a liquid is completed and a compression completing point is calculated and controlled to prevent pressure fluctuations. Further, the compression completing point can be also calculated from the compression history up to this time to be controlled.

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