The present invention pertains to a device for separating plasma from a blood sample comprising a stacked structure which is provided with a first portion including a separating member having a first surface for applying or receiving the blood sample, wherein the separating member is adapted to permit the passage of plasma but to inhibit the passage of cells, and a second portion including an absorptive member for absorbing the plasma, which has a second surface in contact with the separating member for receiving the plasma, wherein the absorptive member is adapted to generate a capillary pressure so as to draw plasma from the separating member to the absorptive member. The first portion is fixed to the backing member in a manner to be removed without destroying the absorptive member. The absorptive member is fixed to the backing member in a manner to be removed without destroying the absorptive member. It further relates to a device wherein the first portion is fixed to the absorptive member in a manner to be removed without destroying the absorptive member. It further relates to a process for separating plasma from a blood sample comprising the following steps of: applying the blood sample to a plasma separating member; drawing said blood sample through said separating member to a plasma absorbing member backed by a backing member; non-destructively removing said absorptive member from said separating member and non-destructively removing said absorptive member from said backing member.