Automated pipetting of small volumes

Details Automated pipetting of small volumes Automated pipetting of small volumes

1995-11-01

1998-06-09

Pyon, Harold Y.

Chemistry: analytical and immunological testing

Including sample preparation

Volumetric liquid transfer

436179, 422100, 422103, 7386401, 7386332, 7386344, 7386413, G01N 110

Patent

active

057632782

ABSTRACT:
A device for automated pipetting of small volumes of liquid has a pipetting needle, a diluter having a liquid output with a syringe and a valve, the syringe including a piston and a piston drive. Tubing interconnects the needle and the liquid output of the diluter, the tubing and diluter containing a substantially incompressible liquid. An impulse generator is connected in the device and coupled to the incompressible liquid in the tubing for generating and applying directly to the liquid in the tubing a mechanical impulse force of at least 0.01 N.multidot.s for separating liquid from the needle.

REFERENCES:
patent: 3798961 (1974-03-01), Flambard et al.
patent: 4223558 (1980-09-01), Schmider et al.

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