Analyzer

An analyzer in which optical measurement is performed with respect to a sample placed in a cell of an analysis tool, comprising:

• a light source unit that emits light for optical measurement;
• a light-receiving unit that receives light emitted from the light source unit and transmitted through the sample or reflected by the sample;
• a tray on which the analysis tool is placed, wherein the tray has an open part in a portion where the analysis tool is placed;
• and
• a drive mechanism for driving the tray, the tray comprises a holding section that holds, in a predetermined position, the analysis tool placed on the tray, the drive mechanism reciprocates the tray between a first position where the analysis tool placed on the tray is exposed to the outside of the analyzer and a second position where the analysis tool placed on the tray is accommodated inside the analyzer, the light source unit is disposed so that emitted light is incident on the cell of the analysis tool when the tray is located in the second position, and the light-receiving unit is disposed so as to receive light transmitted through the cell when the tray is located in the second position;
• the analyzer further comprises a connector connected to the analysis tool and a supporting part supporting the analysis tool through the open part,
• wherein the connector is connected to the analysis tool when the tray is located in the second position, the supporting part supports the analysis tool in an opposite position to the connector, and completion of connection by the connector and support by the supporting part releases holding of the analysis tool by the holding section.