| 摘要 |
<p>A flow cell (1) has at least two inlet channels (6 to 9), each connectable with a reservoir (10 to 13) and controllable by means of valves (14 to 17) and ending in an inlet chamber (5). Each of the two ends (21, 22) of the inlet chamber (5) is connected with the discharge channel (18) by means of an outlet channel (19, 20). Thus, the old fluid remaining in the chamber is displaced into the discharge channel (18) by the newly supplied fluid. The dead time until the passing of the pure new fluid is short.</p> |
