Mobile phase monitor, liquid chromatograph, analysis system, and program

A liquid chromatograph separating an introduced sample by a column to detect a sample component, the liquid chromatograph comprising:

• a mobile phase container configured to accommodate a mobile phase sent to the column;
• a mobile phase monitor configured to manage a liquid amount of the mobile phase accommodated in the mobile phase container;
• and
• a liquid feeding unit configured to feed the mobile phase accommodated in the mobile phase container to the column,
• wherein the mobile phase monitor includes:
• a weight sensor that measures a weight of the mobile phase container;
• a computer memory that stores a plurality of calibration curves respectively corresponding to a plurality of types of mobile phases;
• and
• a computer controller, wherein:
• the computer controller produces a calibration curve based on a measurement value of a weight of a mobile phase container body and a measurement value of a weight of the mobile phase container accommodating the mobile phase of a known liquid, and
• discriminates a type of the mobile phase accommodated in the mobile phase container by searching for the produced calibration curve from the plurality of calibration curves stored in the computer memory, and
• the computer controller further calculates the liquid amount of the mobile phase from the measurement value of the weight sensor based on the produced calibration curve, and notifies an outside computer different from the computer controller of the liquid amount of the mobile phase, such that an operator of the outside computer can monitor the liquid amount of the mobile phase in real time through the outside computer.