Liquid handling process

Details Liquid handling process Liquid handling process

1984-11-01

1986-11-25

Sever, Frank

Chemistry: analytical and immunological testing

Including sample preparation

Dilution

422 67, 422 68, 436180, G01N 110, G01N 118

Patent

active

046249281

ABSTRACT:
The invention relates to a liquid handling process that provides self-limited, controlled and gentle movement of a quantity of liquid for metering and positioning purposes without the need for auxiliary sensors, and without loss or damage to the liquid sample. Precise positioning is accomplished under the influence of progressively reduced volumes of reduced pressure in an arrangement in which atmospheric pressure produces movement of the liquid quantity without need for auxiliary sensing devices, flow or pump control mechanisms, and the like.

REFERENCES:
patent: 3609040 (1971-09-01), Kuzel
patent: 3613729 (1971-10-01), Dora
patent: 3900289 (1975-08-01), Liston
patent: 3934611 (1976-01-01), Gachot et al.
patent: 3951167 (1976-04-01), Howell et al.
patent: 3963440 (1976-06-01), Stein et al.
patent: 4108602 (1978-08-01), Hanson et al.
patent: 4168294 (1979-09-01), Calzi et al.
patent: 4219530 (1980-08-01), Kopp et al.
patent: 4304257 (1981-12-01), Webster

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