G - Physics – 01 – N
Patent
G - Physics
01
N
73/3, 354/30
G01N 9/34 (2006.01) G01N 9/00 (2006.01)
Patent
CA 1261163
- 18 - ABSTRACT Apparatus for determining the amount of biological material in a fluid medium, typically the concentration of bacteria in a fermentation chamber, has a test cell through which medium can be passed with bacteria or after bacteria have been removed by filtration. In the test cell a vibratory element is excited to a resonant frequency indicative of density and a comparison of medium density and medium plus bacteria density reveals the bacteria concentration.
478322
Blake-Coleman Barry C.
Clarke David J.
Goudreau Gage Dubuc
Public Health Laboratory Service Board
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