In this Sept. 21, 2010 photo, a computer screen attached to an argon plasma torch displays graphs indicating the presence of various elements detected during testing of samples taken from designs on ... more 
In this Sept. 21, 2010 photo, a computer screen attached to an argon plasma torch displays graphs indicating the presence of various elements detected during testing of samples taken from designs on the exterior of commemorative glassware, at ToyTestingLab, in Warwick, R.I. Solutions with samples taken with swabs from the surface of the glasses were passed through the argon plasma torch to determine the presence of toxic metals such as cadmium and lead. The combustion of various elements in the samples alters the color of the flame during the test, giving lab technicians an indication of the metals present. less 
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Associated Press | Photo By Steven Senne
Sun, Nov 21, 2010 7:59 PM EST