New imaging technology brings trace chemicals into focus

Friday, March 12, 2010 - 15:21 in Physics & Chemistry

Scientists have hit on a new, versatile method to significantly improve the detection of trace chemicals important in such areas as national security, human health and the environment. The research team was able to detect and identify tiny particles of the explosive trinitrotoluene or TNT -- each weighing less than a billionth of a gram -- on the ridges and canals of a fingerprint.

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