Patent ID: 7744822

Claim:
A microchip reactor comprising: a base portion including a first glass plate and a second glass plate bonded together to form a first longitudinal flow channel, the first glass plate having a groove in its one surface, the second glass plate having a liquid inlet port and a liquid exit port formed at desired positions in communication with the first flow channel; and a movable portion including a third glass plate and a fourth glass plate bonded together to form a second flow channel, the third glass plate having a groove in its one surface, the fourth glass plate having a liquid inlet port at a desired position in communication with the second flow channel in the third glass plate, wherein said base portion and said movable portion have respective sliding contact surfaces which are slidably in contact with each other, wherein said base portion and said movable portion have respective downstream channel portions meeting each other at an intersection at variable locations along the length of the first flow channel where different reagents are introduced, mixed, and reacted, and wherein the position of the intersection is determined by an intersection between an opening in communication with said second flow channel, said opening formed in the sliding contact surface of the movable portion and a slot formed in the sliding contact surface of the base portion, the slot being in communication with said first flow channel, said slot having a major axis in the direction of sliding motion of the movable portion.