초록 ▼

A pipette device comprises one or more pipette tubes. Hydrophobic filter paper secured to each tube limits the upward movement of an aqueous liquid in each tube to provide for a predetermined amount of liquid in each tube. The device can be adapted to be connected to a manifold for alternately apply

A pipette device comprises one or more pipette tubes. Hydrophobic filter paper secured to each tube limits the upward movement of an aqueous liquid in each tube to provide for a predetermined amount of liquid in each tube. The device can be adapted to be connected to a manifold for alternately applying a vacuum and pressure to the pipette tubes through the filter paper. Alternatively it may have, as an integral part thereof, a manifold for the same purpose.

대표청구항 ▼

A multiple pipette device comprising: a plurality of pipette tubes having upper and lower ends, means for holding the pipette tubes together, a hydrophobic filter secured to the top of each pipette tube to limit the upward movement of an aqueous liquid in the tube to provide for filling the tube wit

A multiple pipette device comprising: a plurality of pipette tubes having upper and lower ends, means for holding the pipette tubes together, a hydrophobic filter secured to the top of each pipette tube to limit the upward movement of an aqueous liquid in the tube to provide for filling the tube with a predetermined amount of aqueous liquid while permitting the passage of a gas through the filter, and means forming a manifold above said pipette tubes and in fluid communication with said tubes, said manifold being adapted to be connected to a source of vacuum and a source of pressure.