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US 8,557,184 B2Granted
Devices and methods for measuring the acidity of airborne matter using UV-visible spectrometry
AssigneeUniversity of Florida Research Foundation, Inc.
InventorMyoseon Jang
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Abstract
Devices and methods for measuring the acidity of airborne matter are provided. A filter can be impregnated with an indicator dye which changes color in response to changes in acidity. After the sample passes through the filter, the filter can be analyzed using UV-visible spectrometry.
Claims4
A device for measuring the acidity of airborne matter, comprising:
- a filter impregnated with an indicator dye;
- a UV-visible spectrometer;
- a cartridge to remove ammonia;
- and
- a cartridge to remove nitric acid gas,
- wherein the filter comprises Teflon polymers and glass fibers.
3 more elements
Dependencies are inferred from the claim text.