Abstract: The present invention provides a nucleic acid collection device that can estimate the nucleic acid collection amount when collecting nucleic acids from a biological sample containing nucleic acids. The nucleic acid collection device comprises a sucking and discharging unit for sucking in and forcing out a sample containing nucleic acids, a collector for collecting the nucleic acids by sucking in and forcing out the sample using the sucking and discharging unit, a pressure measurer for measuring a discharging pressure when forcing out the sample and a sucking pressure when sucking in the sample, and measuring a differential pressure that is the difference between the discharging pressure and the sucking pressure, and an estimator for estimating the collection amount of nucleic acids collected based on the differential pressure.

Abstract: A liquid droplet introducing tank 3A includes a tank body 31, which is formed by mutually opposing top surface 31a and bottom surface 31b, and a side surface 31c. The tank also includes an injection hole 32 that is opened in the top surface 31a. Liquid droplets Dr are injected from the injection hole 32. The center of the injection hole 32 is closer to the side surface 31c than the center of the top surface 31a. The liquid droplet introducing tank 3A enables liquid droplets to be suitably injected therein and is suitable for reducing size.

Abstract: The present invention provides a nucleic acid collection device that can estimate the nucleic acid collection amount when collecting nucleic acids from a biological sample containing nucleic acids. The nucleic acid collection device comprises a sucking and discharging unit for sucking in and forcing out a sample containing nucleic acids, a collector for collecting the nucleic acids by sucking in and forcing out the sample using the sucking and discharging unit, a pressure measurer for measuring a discharging pressure when forcing out the sample and a sucking pressure when sucking in the sample, and measuring a differential pressure that is the difference between the discharging pressure and the sucking pressure, and an estimator for estimating the collection amount of nucleic acids collected based on the differential pressure.

Abstract: The present invention relates to a centrifugal separator (5) including a rotor (51) which pivotally supports a container (9) including an upper opening (90B) and which is to be rotated to apply a centrifugal force to the container (9). The rotor (51) includes an evaporation preventer (55A) for preventing separation target liquid contained in the container (9) from evaporating when the rotor (51) is rotated. The evaporation preventer (55A) includes a standing wall (55Ab) which is positioned in front of the upper opening (90B) when the container (9) is pivoted by rotating the rotor (51).

Abstract: A liquid droplet introducing tank 3A includes a tank body 31, which is formed by mutually opposing top surface 31a and bottom surface 31b, and a side surface 31c. The tank also includes an injection hole 32 that is opened in the top surface 31a. Liquid droplets Dr are injected from the injection hole 32. The center of the injection hole 32 is closer to the side surface 31c than the center of the top surface 31a. The liquid droplet introducing tank 3A enables liquid droplets to be suitably injected therein and is suitable for reducing size.

Abstract: The present invention relates to a centrifugal separator including a rotor (51) which is to be rotated to apply a centrifugal force to a container (9) and which includes a detection target portion (57) utilized for detecting a particular portion of the rotor (51), and also relates to an analytical apparatus provided with the centrifugal separator. The detection target portion (57) is so designed as to cause outputting of at least three kinds of signals which are distinguishable from each other. For instance, the detection target portion (57) includes a first detection target region (57A) having a higher reflectivity than a surface of the rotor (51), and a second detection target region (57b) which reflects light in a manner different from the surface of the rotor and the first detection target region (57A). For instance, the second detection target region (57b) includes a plurality of linear portions (57Ba) regularly spaced from each other.

Abstract: The present invention relates to a centrifugal separator (5) including a rotor (51) which pivotally supports a container (9) including an upper opening (90B) and which is to be rotated to apply a centrifugal force to the container (9). The rotor (51) includes an evaporation preventer (55A) for preventing separation target liquid contained in the container (9) from evaporating when the rotor (51) is rotated. The evaporation preventer (55A) includes a standing wall (55Ab) which is positioned in front of the upper opening (90B) when the container (9) is pivoted by rotating the rotor (51).