Chemistry: analytical and immunological testing – Automated chemical analysis – With a continuously flowing sample or carrier stream
Patent
1991-11-26
1994-04-19
Housel, James C.
Chemistry: analytical and immunological testing
Automated chemical analysis
With a continuously flowing sample or carrier stream
436 84, 436165, 436172, 436805, 422 8207, 422 8208, 422 8209, 2504581, 2504611, 250343, 250373, 356417, G01N 2164, G01N 2180
Patent
active
053044924
ABSTRACT:
An apparatus that conducts in situ analyses of fluids in real time is disclosed. The apparatus comprises bifurcated optic fibers, a pulsed light source, a light detector, a water-tight pressure case that houses the pulsed light source and the light detector, and a flow-through cell that receives one end of each bifurcated optic fiber. The flow-through cell may comprise a plurality of attached tube sections that define a volume which acts as a passageway for conducting fluids. One or more sections of the flow-through cell may be adapted to introduce a reagent into fluid flowing through the cell. Sections of the cell may contain potassium periodate and N,N-diethylaniline that are released into a fluid flowing through the passageway, enabling the spectrophotometer to analyze manganese (II) concentrations by monitoring the decrease in fluorescence accompanying the oxidation of DEA to 2 DEA'. The fluid may also be analyzed by measuring reflectance, absorption, turbidity, and fluorescence.
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Bhat N.
Housel James C.
The State of Oregon Acting by and through the State Board of Hig
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