Importance

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Abstract

A sampling cell (1) sucks body fluid, which is suction effusion fluid (SEF), into a passage by decompressive suction. At this time, the inside of the passage is under reduced pressure and accordingly the SEF contains a large amount of bubbles of oxygen and other gases. When, in this state, first opening/closing means (20, 21) provided in part of the passage are closed and third opening/closing means (25) is opened to bring the passage filled with the SEF into communication with the atmosphere, the gases contained in the SEF are discharged into the atmosphere. After that, the SEF in the passage, cleared of the gases, is supplied together with buffer solution to measuring means (7). Therefore, the SEF to be fed to the measuring means (7) can be supplied always in a fixed quantity.

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First Claim