Star Trek Tricorder now a reality

Brilliant minds at Purdue University have managed to develop a handheld analytical device reminiscent of the Tricorder as seen in the Star Trek sci-fi series. This invention is actually an amalgamation of two device, where one sprays an object with ionized water vapor while a miniaturized mass spectrometer will go to work trying to detect substances. A Windows-based computer will then store results of the analysis which can be looked into at a later date. What are some of the uses you can think of with the tricorder? For instance, users will now be able to detect disease markers in urine, salmonella in food, and even cocaine on a rolled-up bill. Expect to see the tricorder hit markets in the near future.