Patent attributes
An electrophoresis apparatus 1 has an introducing passage 11 for allowing a sample to move from one end of the introducing passage 11 toward the other end thereof, and an analyzing passage 10, formed so as to cross the introducing passage in a cross-portion 8, for allowing a part of the sample in the cross-portion 8 to be separated from the other part of the sample in the introducing passage 11 to move by electrophoresis, wherein the angle between a downstream portion 10a of the analyzing passage 10 from the cross-portion 8 in an electrophoresis direction, and at least one of an upstream portion of the introducing passage 11 from the cross-portion 8 in a sample moving direction, and a downstream portion of the introducing passage 11 from the cross-portion 8 in the sample moving direction, is an acute angle.
