| abstract |
In an apparatus for pre-processing a specimen to be input to an automatic analyzer for analyzing a component concentration of a biological sample, a biological body capable of reducing manual work and improving processing capacity and reducing costs. A sample analyzer is provided. In a biological sample analyzer, a hole 311 for fixing a blood collection tube 101 vertically, an irradiation means 312 for irradiating light to the blood collection tube 101, and an irradiation means 312 relative to the side surface of the blood collection tube 101. A moving means 316 for moving the blood collection tube 101, an imaging means 324 fixed to the upper side in the vertical direction of the blood collection tube 101, and imaging the inside of the blood collection tube 101 at predetermined time intervals in synchronization with the movement by the movement means 316, and an imaging means 324 The data acquisition means 327 for acquiring the picked-up image picked up in (1) and the data analysis means 328 for specifying the boundary position of the layer based on the picked-up image are provided. [Selection] Figure 2 |