A process for the accelerated dialytic recovery of foreign substances from passive samplers consisting of semipermeable membranes of varying lengths and dimensions

The invention relates to a dialysis method for the recovery of foreign substances, especially of low molecular weight inorganic and / or organic substances, of semipermeable membranes of varying lengths and dimensions using a PLE (pressurized liquid extraction) -Extraktionsapparatur. It is preferable that the membranes are semipermeable membrane devices (SPMDs), which accumulate as a passive collector foreign materials / contaminants to a decrease or an adsorbent.