| 摘要 |
Two rectangular slides having front and rear faces are held with front faces (112, 132) facing each other. Raised end portions (122, 142) on one or both front faces abut and space the front faces by a distance (e.g., 100 to 250 mu m) conductive for reversible capillary action between the slides. Raised island portions (125, 145) on one or both front faces are located at corners opposite the raised end portions. The raised island portions serve to maintain spacing between the front faces, particularly as the ends of the slides opposite to the raised end portions contact an absorbent material. An opening between the raised island portions permits liquid to enter and leave the gap (140) between the front faces. |
