| abstract |
A substrate (101) is provided with a channel (103), and a drying section (107) having many columnar bodies (105) is formed at one end of the channel (103). The top of the channel (103) except the portion above the drying section (107) is covered with a covering (109). A sample supplied into the channel (103) moves to the drying section (107) due to capillary phenomenon. The drying section (107) is heated with a heater (111), so that the solvent is evaporated, thereby concentrating and drying the solute. |