Analytical device

An analytical device on which a plurality of analysis chips are to be detachably loaded, the plurality of analysis chips each having a reaction region in which a reagent for a corresponding measurement item is immobilized and each being provided, outside the reaction region, with item information related to the corresponding measurement item, the analytical device being configured to analyze a plurality of measurement items for a test substance sample by spotting the test substance sample onto the reaction region of each of the plurality of analysis chips and measuring a state of a reaction between the test substance sample and the reagent, the analytical device comprising:

• a substrate provided with a plurality of cells in each of which a corresponding one of the analysis chips is to be loaded;
• a pressing member that is provided for each of the cells and that presses the analysis chip loaded in the cell in a direction toward the reaction region;
• an item-information reading unit that reads the item information of each of the analysis chips;
• and
• a stain detection mechanism that includes a detection unit detects a stain adhering to the pressing member due to a loaded analysis chip that is the analysis chip loaded in one of the cells in previous measurement, and a processor being configured to store, in a memory, stain-related information on each of the cells, the stain-related information including stain information related to presence or absence of the stain on each of the cells and previous item information that is the item information of the loaded analysis chip, the stain information and the previous item information being associated with each other;
• wherein the processor that executes, before loading of a to-be-loaded analysis chip that is the analysis chip to be loaded in a to-be-used cell that is the cell to be used in current measurement, carryover suppression processing for suppressing carryover, in which the stain due to the previous measurement affects the current measurement, based on the stain-related information that is stored in the memory and that is related to the to-be-used cell and current item information that is acquired from the item-information reading unit and that is the item information of the to-be-loaded analysis chip.