| 摘要 |
A column container is formed in a bonding portion between a first support plate and a second support plate, and a column is held in the column container. An inlet channel connects the column container to a liquid inlet port. The inlet channel includes a first channel having a small diameter and a second channel having an increasing diameter. An inner surface of the second channel is a hemispherical surface. The radius of the column container is substantially the same as the radius of the hemispherical surface. The distance from an inflow end of the column to the boundary between the first channel and the second channel is substantially the same as the radius of the hemispherical surface. |
