Dispensing Device, Mixing Device, And Analysis Device

Abstract: [Problem] To provide a dispensing device capable of improving the dispensing accuracy of a liquid-phase sample. [Solution] A dispensing device 1 according to an embodiment comprises: a cylindrical first flow passage 11 which has a cylindrical main body part 14, an opening 15 formed in the main body part 14, and a lid part 16 which closes the opening 15 and has greater flexibility than the main body part 14, and is for causing a liquid-phase sample 7 to flow downward; a pressing part 12 for pressing the lid part 16; and a pressing control part 13 which controls the pressing of the lid part 16 by means of the pressing part 12. The first flow passage 11 has an injection part 19 in which a sample injection port 11a is formed on the upstream side from the lid part 16, and is for injecting a gas between the sample injection port 11a and the lid part 16.

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