Abstract: Provided is a sample analysis apparatus including: a syringe pump; a channel switch valve; a mixing container; a detection unit configured to detect a concentration of a specified substance contained in a sample solution; and a control unit configured to control the syringe pump and the channel switch valve. The channel switch valve includes a sample port, a reagent port, and a detection port connected to a detection pipe on which the detection unit is arranged. The control unit controls the syringe pump and the channel switch valve to draw the reagent solution from the reagent pipe to the mixing container, draw the sample solution from the sample pipe to the mixing container, draw the reagent solution from the reagent pipe to the mixing container, and supply a mixture solution containing the sample solution and the reagent solution from the mixing container to the detection unit.

Abstract: A cleaning apparatus 200 is provided with: a treatment tank 10, which defines a treatment space 15 by the inner surfaces (11a, 11b) thereof and on the inner surfaces of which a water-repellent coating has been applied; a cleaning liquid supply device with nozzles 24a (cleaning liquid spray nozzles) for spraying, into the treatment space 15, a mist of a cleaning liquid CL for cleaning surface treatment processing liquid PL adhering to the surface of a metal part S and/or processing liquid PL adhering to the inner surface; and a drying device, which comprises an air compressor 23a and is for supplying drying air compressed by the air compressor 23a to the treatment space 15.