Patent ID: 11921094
Assignee: SHIMADZU CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. The liquid chromatographic system according to claim 3, wherein
the liquid sending pump is a double plunger pump including two plunger pumps that are driven complimentarily with each other, and
the algorithm, in the pulsation detection step, is configured to obtain a difference between the liquid sending pressures at a start point and an end point of a discharging operation of one of the two plunger pumps as a first fluctuation range, obtain a difference between the liquid sending pressures at a start point and an end point of a discharging operation of another one of the two plunger pumps as a second fluctuation value and obtain the fluctuation range with use of the first fluctuation value and the second fluctuation value.