Sulfur dioxide detector device embodied by using so2-oxidant...

Details Sulfur dioxide detector device embodied by using so2-oxidant... Sulfur dioxide detector device embodied by using so2-oxidant...

G - Physics

01

N

G01N 33/84 (2006.01) C12Q 1/00 (2006.01) C12Q 1/02 (2006.01) G01N 33/00 (2006.01)

Patent

CA 2052590

ABSTRACT In a sulfur dioxide detector embodied by using SO2-oxidant microbe, a bio-membrane is located at one end of an oxygen concentration sensor, the bio-membrane consisting of the SO2-oxidant microbe provided between an immobilized membrane and a gas permeable membrane. The sensor has an electrode in contact with the immobilized membrane of the bio-membrane. A dish-shaped cell has an open end which is in contact with the gas permeable membrane so that SO2-involved solution supplied to the cell causes to oxidize sulfurous acid to sulfuric acid during which the SO2 permeates through the bio-membrane so as to change an output from the sensor. An inlet and outlet hole are formed on a sidewall of the cell. The outlet hole is located to be always right above the inlet hole so as to drain foam occasioned at the time when the SO2-involved solution is supplied to the dish-shaped cell through the inlet hole and drained from the outlet hole.

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