Incubator

An incubator for incubating a dry frameless chemical analysis film which comprises a support sheet and a reagent layer formed on the support sheet and is spotted on an upper surface with a sample liquid, the incubator comprising:

• an incubator base on which the frameless chemical analysis film is placed,
• an incubator cell member which is movable up and down between a lower position and an upper position and presses a peripheral portion of the upper surface of the frameless chemical analysis film at a location outside of the sample liquid against the incubator base while also enclosing a space around the frameless chemical analysis film in the lower position,
• a first heating means which heats the incubator based at least at a location in which the frameless chemical analysis film is brought into contact with the incubator base when the incubator cell member is in the lower position, to a first predetermined temperature and holds the incubator base and in turn the frameless chemical analysis film at the first predetermined temperature, and
• a second heating means which heats the incubator cell member to a second predetermined temperature higher than the first predetermined temperature.