WASHINGTON: Scientists from Carlos Fraga from Pacific Northwest National Lab, Washington have developed a test that traces difficult-to-detect residues of sarin, a nerve agent used by terrorists, back to its source.
For instance, sarin leaves traces after an attack but there has been no practical way of tracing the residues back to their actual source. Sarin is a manmade nerve agent, the most toxic and rapidly acting of the known chemical warfare agents. It is a clear, colourless, odourless and tasteless liquid that can evaporate into gas, the journal Analytical Chemistry reports. Exposure to large doses of sarin may cause loss of consciousness, convulsions, paralysis and respiratory failure possibly leading to death. IANS