MIPC COLUMN CLEANING SYSTEM AND PROCESS

摘要

An apparatus for effecting base pair length separations of DNA fragments by matched ion paired chromatography comprising a separation column containing separation media having non-polar DNA separation surfaces, separation soluti on supply means, and a separation solution conduit communicating with the separation column and the separation solution supply means, and a cleaning solution valve means positioned in the separation solution conduit for injecting cleaning solution into the separation solution conduit. A process for cleaning the non-polar DNA separation surfaces in the apparatus comprisi ng interrupting the flow of separation solvent with a block of cleaning solutio n injected into the flow of separation solution passing to the column, the cleaning solution containing agent which removes accumulated residues from t he non-polar surface. The cleaning solution can have an alkaline pH and contain a chelating agent such as EDTA.