| 摘要 |
A device for concentrating enzyme immunoassay sandwich product in a very narrow band (14) in a column (10) for development and visual reading. The device may be constructed using a clear or transparent vessel or column (10), with a fluid inlet, in which there is disposed a band (14) or a plurality of bands (14) of small particles to which one of an immunochemical couple is bound, the other member of which couple is the species to be determined. The immunochemical band (14) is defined by bands (16, 18) of non-immunochemically active particles. An absorbent pad (23) may support the bands. |
