The article is, for example, a reagent cartridge used in an analyzer for biochemical analysis or immunoassay using blood as a sample. The tubular part on the left front side is a chip accommodating part for accommodating chips, and the tubular part on the right front side is a cleaning liquid accommodating part for accommodating a cleaning liquid. The lower ends of the chip accommodating section and the washing liquid accommodating section are arranged on the same plane, and the reagent cartridge is formed so as to be able to stand on its own by the lower ends. The tubular part on the left side of the washing liquid storage part is a sample storage part into which a sample such as blood is dispensed, and the sample storage part is formed in a substantially gourd shape as shown in a plan view. The small gourd-shaped hole is used for dispensing the sample, and the large hole is used for sucking the sample into the analyzer. Further, an antibody storage section and a reagent storage section are formed between the chip storage section and the sample storage section, and are used in a state where the antibody and the reagent are stored respectively. This article is made of a synthetic resin.