Patent ID: 8057761

Claim:
A chemical detector, comprising: first and second detection windows; first and second ampoules selectively communicatively coupled to the first detection window; and third and fourth ampoules selectively communicatively coupled to the second detection window; wherein the first and third ampoules contain a substance that can hydrolyze a G-type nerve agent and a V-type nerve agent; wherein the second ampoule contains a substance that can react with a hydrolyzed V-type nerve agent to produce a colored precipitate and that produces no color change when reacting with a hydrolyzed G-type nerve agent; and wherein the fourth ampoule contains a substance that can react with a hydrolyzed V-type nerve agent in the presence of a polycarboxylic acid to produce a color change and that does not react with a hydrolyzed G-type nerve agent in the presence of the polycarboxylic acid to produce a color change.