Ammonia detection device and related methods
AssigneeVirbac
InventorsRoni Kopelman, Stuart Jamieson, John Thuma
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Abstract
A reusable device for continuously monitoring gaseous ammonia concentration in a surrounding environment comprising a plurality of layers, including an active layer in which a dye (e.g., an indicator dye useful for measurement of pH) is immobilized to a membrane (e.g., polyamide membrane), and a hydrophobic filter layer capable of permitting contact between the active membrane and dissolved gaseous ammonia.
Claims20
A reusable device for continuously monitoring the gaseous ammonia (NH3) concentration in a surrounding environment comprising:
- a first layer comprising a sensor membrane with a indicator dye immobilized therein, wherein the indicator dye changes color corresponding to the gaseous ammonia concentration;
- and
- a second layer comprising a hydrophobic filter membrane permeable to gaseous ammonia such that gaseous ammonia can diffuse therethrough and contact the sensor membrane, the reusable device being immersible in an aqueous environment and reusable.
A method for detecting the gaseous ammonia (NH3) concentration in an aqueous environment, comprising:
- providing a multi-layered reusable device comprising a first layer having a sensor membrane with a indicator dye immobilized therein, wherein the indicator dye changes color corresponding to the gaseous ammonia concentration, and a second layer comprising a hydrophobic filter membrane permeable to gaseous ammonia such that gaseous ammonia can diffuse therethrough and contact the sensor membrane;
- immersing the device in the aqueous environment;
- and
- viewing the color change in the sensor membrane upon the gaseous ammonia contacting the sensor membrane.
Dependencies are inferred from the claim text.