An alignment transfer section (30) transfers measurement containers (60) that align along an alignment rail (32). A step (66) of each measurement container (60) that is formed by a body and a neck comes in contact with an upper side (32a) of the alignment rail (32). The alignment rail (32) is disposed to slope downward toward the end thereof. The alignment transfer section (30) includes an upthrust plate (34) that comes in contact with the bottom of the measurement containers (60) supported by the alignment rail (32), and transfers the measurement containers (60) toward the end of the alignment rail (32) by causing the upthrust plate (34) or the alignment rail (32) to make an upward-downward motion.