Patent ID: 6129828
Filing Date: 2000-10-10
Classification: B01D,B01J,B01L,B03C,C12N,G01N,H01L

Abstract:
An apparatus for active biological sample preparation adapted to separate desired materials from undesired materials comprising:a first sample chamber, adapted to receive a buffer solution,a second sample chamber, adapted to receive a buffer solution,a spacer compartment disposed between the first sample chamber and the second sample chamber, the spacer compartment providing a trap having a differential effect on the desired materials versus undesired materials,a first electrode adapted for electrical contact with the buffer solution when located within the first sample chamber, anda second electrode adapted for electrical contact with the buffer solution when in the second sample chamber, characterized by havinga protective layer between the first sample chamber and the first electrode, thereby forming a first electrode chamber within the first sample chamber, wherein the protective layer is a membrane.