Patent ID: 6302919
Filing Date: 2001-10-16
Classification: B01L,G01N

Abstract:
A method of filtering a liquid sample in a container comprising the steps of:placing a filtration device in the liquid sample;subjecting the liquid sample, the container, and the filtration device to centrifugation;wherein the vertical position of the filtration device relative to the container is fixed by the contact between the container and the filtration device, the filtration device comprising:a filtration housing having an open top end and an open bottom end;a liquid permeable diaphragm located within the filtration housing;a collection chamber located within the filtration housing above the liquid permeable diaphragm;a filter member located beneath the collection chamber bellow the liquid permeable diaphragm; andone or more spacer elements associated with the filtration housing that engage the container and keep the filter member accessible to the liquid sample during filtration.