Liquid dispenser with an improved probe

Details Liquid dispenser with an improved probe Liquid dispenser with an improved probe

1977-04-19

1978-10-24

Tollberg, Stanley H.

Measuring and testing

Measuring vessel

G01N 114

Patent

active

041214668

ABSTRACT:
A metering apparatus is adaptable either as a dispenser or a sampler, the surface of the aspirating probe being coated with a thin film of liquid immiscible with the liquids to be aspirated. The thin immiscible film prevents contamination between segments of successively aspirated liquids and, also, their respective sources. Further, segments of the immiscible liquid can be aspirated between successive liquid segments, to maintain such liquid segments discrete.

REFERENCES:
patent: 3479141 (1969-11-01), Smythe et al.

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