US US20260235637A1
The present application relates to the field of liquid treatment, and discloses a solution for quantitatively treating a liquid. The solution includes: a container used for containing a liquid to be extracted or discharged; and a micro tubule including: a flow passage extending outwards from the interior of the container to a bifurcation point; a first by-pass communicating with the flow passage and extending from the bifurcation point to a first port; and a second by-pass communicating with the flow passage and extending from the bifurcation point to a second port. A peristaltic pump is disposed in series in at least one of the flow passage, the first by-pass and the second by-pass, and a cut-off valve or another peristaltic pump is disposed in series in at least another of the flow passage, the first by-pass and the second by-pass, so that a predetermined volume of liquid between the bifurcation point and the first port or the second port can be intercepted.
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