| abstract |
A wafer (10) for synthesizing biopolymers includes a retaining ring (16), solid phase support material (22) and porous members (18, 20) at respective ends of the retaining ring (16). The porous members (18, 20) are maintained in position by rings (12, 14) which circumbscribe retaining ring (16). The porous members (18, 20) and the retaining ring (16) cooperate to define therebetween a reaction chamber which houses the solid phase support material (22). |