LIQUID ANALYSIS APPARATUS
First Claim
2. A cell as set forth in claim 1 wherein the passages lie in a generally horizontal plane but on an angle with respect to one another, and said bore is located above the conical bottom of said chamber.
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Abstract
An apparatus for batch analysis of liquid samples wherein syringes are employed for delivering repeatable volumes of reagent to a cell prior to the addition of a sample and for withdrawing liquid from the cell after analysis thereof. Sensing means, such as a polarographic oxygen sensor, is mounted in the side wall of the cell with it sensing end contacting the liquid therein. A stirring element is positioned within the cell and rotated about the vertical axis of the cell so that a high tangential stirring force is produced to promote mixing of sample with reagent and to optimize sensor performance, yet only small sample volumes are required. The apparatus is particularly suited for rate sensing batch analysis of biological fluids such as blood or urine.
8 Citations
2 Claims
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2. A cell as set forth in claim 1 wherein the passages lie in a generally horizontal plane but on an angle with respect to one another, and said bore is located above the conical bottom of said chamber.
Specification
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Current AssigneeJames C. Sternberg, Robert A. Ray, Rudolf Deuringer
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Original AssigneeJames C. Sternberg, Robert A. Ray, Rudolf Deuringer
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InventorsRay, Robert A., Sternberg, James C., Deuringer, Rudolf
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Primary Examiner(s)Monacell, A. Louis
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Assistant Examiner(s)Simons, William A.
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Application NumberUS05/203,094Time in Patent Office785 DaysField of Search195/103.5,127 23/253R,259R 204/195R,195P,195T,195H 324/3B,7RUS Class Current422/82.04CPC Class CodesG01N 2035/00534 Mixing by a special element...G01N 2035/1025 Fluid level sensingG01N 35/00 Automatic analysis not limi...
