The unique QIAprecipitator module replaces the centrifugation step traditionally used to collect isopropanol-precipitated DNA following purification. The QIAprecipitator module traps the precipitated DNA while the isopropanol-buffer mixture flows through. The DNA is then simply eluted from the QIAprecipitator into a microcentrifuge tube with TE buffer or water. This unique module also eliminates the risk of pellet loss, which can occur during decanting of the supernatant following centrifugation.
QIAfilter Cartridges are special filter units designed to replace the centrifugation step following alkaline lysis of bacterial cells. QIAfilter Cartridges completely remove SDS precipitates and clear bacterial lysates in a fraction of the time needed for centrifugation.