Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1994-07-26
1997-01-14
Raevis, Robert
Measuring and testing
Sampler, sample handling, etc.
Capture device
7386434, G01N 114
Patent
active
055941834
ABSTRACT:
A capillary cavity is provided in communication with a liquid bath container. The cavity is metered with a predetermined quantity of a liquid by a process that includes: (a) providing at least one capillary cavity, which outwardly emerges via an introduction orifice and is dimensioned such that the liquid cannot enter or leave the cavity spontaneously; (b) providing a bath of the liquid; (c) evacuating the cavity, initially free of any liquid, in order to bring its internal pressure to a value that is less than a pressure prevailing above the liquid bath; (d) connecting the interior of the capillary cavity, which is at least partially evacuated, to the liquid bath via the introduction orifice, thereby filling the cavity; (e) separating the filled capillary cavity from a remainder of the liquid bath; (f) emptying the capillary cavity which is filled and separated from the liquid bath via the introduction orifice. The method and device have applications including, for example, diluting a precise amount of liquid with a diluent.
REFERENCES:
patent: 1678540 (1928-07-01), Trenner
patent: 3626762 (1971-12-01), Gilford
patent: 4537747 (1985-08-01), Castaneda
patent: 5221311 (1993-06-01), Rising et al.
Bio Merieux
Raevis Robert
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