Airports started to check for liquid explosives when a plot to bomb airplanes using liquid explosives was uncovered in the United Kingdom.
I told you some time ago that the Transportation Security Administration can scan your carry bags with their Multi-View X-Ray Devices for some liquid explosives.
Such X-Ray based devices can detect the presence of liquid explosives but along with it they can also give false alarms.
A company based in Stillwater, OK, has developed a detector for Hydrogen-Peroxide that is the main ingredient of a liquid bomb. The device is so sensitive that it can detect the presence of the ingredient in a factory sealed container.
The detector is based on chemical films, which can sense minute amount of vapor of the chemical. The films are specially formulated and they start to glow if they detect the presence of Hydrogen Peroxide and any of its compounds.
The device has a simple design that makes it efficient for use in an Airport.
Via: technologyreview
