| abstract |
The invention relates to a method for detecting an analyte in a sample and to a device for carrying out the method. The device is remarkable in that it comprises a tubular volume (6), having a lower zone (8), and an upper reading zone (9), limited at its lower part by a membrane (3) permeable to liquids, in which slides a piston (5), said volume containing in the lower zone a solid phase consisting of particles of higher and lower density. |