Test component picking manner of liquid chromatography and test component picking device null for liquid chromatography

摘要

PURPOSE: To easily perform sampling of a component to be inspected by sampling an eluate into a tube connected to a passage without dropping it from the terminal of the passage and separating and holding by interposition of air. ;CONSTITUTION: When eluate comes out from a column 6, due to eluted protein component, the change of an electric signal is detected as a peak with a peak sensor 18 in accordance with the electric signal from a detector 8 and its signal is transmitted to a valve 22. Thereby, the valve 22 changes over passages, an eluate part from a flow cell 14 is introduced to a tube for preparative isolation 26 and air is discharged to a drain passage. When the electric signal received with the peak sensor 18 is lower than peak detection sensitivity, a peak detection end signal is transmitted, the passage of the valve 22 is changed over, the eluate not containing a component to be inspected is drained to the drain passage and air is introduced to the tube for preparative isolation 26. As the result, only the eluate containing protein is sampled to the tube 26.;COPYRIGHT: (C)1995,JPO