| 摘要 |
PROBLEM TO BE SOLVED: To easily detect a fault of a separation column in a liquid chromatography device. SOLUTION: The liquid chromatography device includes the separation column; a pump capable of sending liquid to the separation column; a sensor capable of detecting a pressure of the liquid sent by the pump; an upstream selector valve provided on the upstream the separation column, communicable with a waste liquid container; and a downstream selector valve provided on the downstream the separation column, communicable with the waste liquid container. Each selector valve on the upstream and downstream the separation column is switched to be communicated with the waste liquid container, and the liquid is sent by the pump, and the pressure of liquid sending by the pump is detected, to thereby detect a fault of the separation column. An abnormality of the separation column can be detected easily by this invention. COPYRIGHT: (C)2008,JPO&INPIT
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