| 摘要 |
In a biochemical analysis apparatus, a chemical analysis element is taken out from a chemical analysis element cartridge, spotted with sample liquid and transferred to an incubator. After incubation, the optical density of the chemical analysis element is measured, and the concentration of a component to be analyzed in the sample liquid is determined. A test element which is substantially equal to the chemical analysis element in size and shape and has a density pattern for detecting shift of the position of the test element from a predetermined position is taken out from a cartridge and is transferred to the incubator in the same manner as the chemical analysis element. On the way to the incubator, the position of the test element relative to, for instance, a suction member for transferring the chemical analysis element is detected by use of the density pattern, and when it is detected that the test element is in the regular position relative to the suction member, it can be expected that the chemical analysis element can be transferred in the regular position on the suction member.
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