Chemistry: molecular biology and microbiology – Condition responsive control process
Patent
1978-04-04
1980-05-20
Warden, Robert J.
Chemistry: molecular biology and microbiology
Condition responsive control process
23230B, 204195B, 422 68, 435 32, 435 34, 435 38, 435 39, 435289, 435290, 435291, 435311, 435316, C12Q 300, C12Q 106, C12M 136
Patent
active
042040370
ABSTRACT:
Method and automated apparatus are disclosed for determining the time of detection of metabolically produced hydrogen by coliform bacteria cultured in an electroanalytical cell from the time the cell is inoculated with the bacteria. The detection time data provides bacteria concentration values. The apparatus is sequenced and controlled by a digital computer to discharge a spent sample, clean and sterilize the culture cell, provide a bacteria nutrient into the cell, control the temperature of the nutrient, inoculate the nutrient with a bacteria sample, measures the electrical potential difference produced by the cell and measures the time of detection from inoculation.
REFERENCES:
patent: 3421982 (1969-01-01), Schultz et al.
patent: 3743581 (1973-07-01), Cady et al.
patent: 4009078 (1977-02-01), Wilkins et al.
patent: 4030979 (1977-06-01), Zuber
patent: 4149938 (1979-04-01), Young et al.
Dill W. Preston
Frosch Robert A. Administrator of the National Aeronautics and Space
Jeffers Eldon L.
Taylor Rueben E.
Manning John R.
Marnock Marvin J.
Matthews Marvin F.
Warden Robert J.
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