Chemistry: physical processes – Physical processes – Crystallization
Patent
1974-06-27
1976-06-15
Scovronek, Joseph
Chemistry: physical processes
Physical processes
Crystallization
23255E, 204195P, 324 30R, G01N 2700, G01N 3100, G01N 3316
Patent
active
039634400
ABSTRACT:
A blood analysis system comprises a tempering chamber in which a plurality of flow through measuring cells are disposed. A sensor electrode is associated with each cell. A sample flow path extends from an entrance port through a heater element, a first measuring cell, a control valve, a second measuring cell, a reference electrode interface, to a positive displacement pump. In standby condition, the entrance port is immersed in flush fluid and operation of the pump in such condition flows flush fluid through the entire sample path. Fluid access to either measuring cell is obtainable through the entrance port, auxiliary valve ports, or disconnectable conduits connected to the valve. The control valve is connected in the flow path between the two measuring cells, and in a first condition that control valve places the measuring cells in series fluid communication with the inlet port, and in a second condition isolates the measuring cells from one another so that the electrode systems associated with the two measuring cells may be calibrated concurrently and independently of one another.
REFERENCES:
patent: 3556950 (1971-01-01), Dahms
patent: 3658478 (1972-04-01), Spergel et al.
patent: 3672843 (1972-06-01), Rosse et al.
Spergel Philip
Stein Bernard
Instrumentation Laboratory Inc.
Scovronek Joseph
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