Figure 1. The dissolution chamber is made of poly methyl methacrylate. Inlet tubing connects from a syringe pump to the upper part of the chamber, and the outlet tubing leaves from the lower part of the chamber to the sample collector. In the center of the dissolution chamber, a titanium mesh circle is installed to prevent the large drug particles reaching the lower chamber to possibly clog the outgoing tubing. The mesh contains 5-µM pores.