Automated timing of fluid delivery in sample analysis

Details Automated timing of fluid delivery in sample analysis Automated timing of fluid delivery in sample analysis

1974-12-24

1977-01-25

Queisser, Richard C.

Measuring and testing

Gas analysis

Gas chromatography

137 3, 137 93, G01N 3100

Patent

active

040044513

ABSTRACT:
Apparatus and method for analyzing liquid sample comprising flowing a stream including a liquid continuously in a conduit, detecting a flow rate characteristic in the conduit and generating a signal in response thereto, and increasing, decreasing or maintaining, unchanged the flow rate of the stream in the conduit in response to the signal, the flow being increased or decreased by the flow into the conduit of another fluid without changing the concentration of the aforementioned liquid. The continuing flow of the liquid may be the flow of a segmented sample-reagent liquid, and the other fluid which is added may be a gas.

REFERENCES:
patent: 2780414 (1957-02-01), De Heer
patent: 2958333 (1960-11-01), Poettmann
patent: 3403555 (1968-10-01), Versaci
patent: 3435659 (1969-04-01), Sternberg
patent: 3435660 (1969-04-01), Sternberg
patent: 3435678 (1969-04-01), Sternberg
patent: 3600953 (1971-08-01), Isreeli
patent: 3621715 (1971-11-01), Soderkvist
patent: 3727048 (1973-04-01), Haas
patent: 3739636 (1973-06-01), Versaci
patent: 3760829 (1973-09-01), Schuck
patent: 3881351 (1975-05-01), Prachar

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