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20131022-NGC-DBF-5666

Tom Weber, (l), Leader of Grain Inspection, Packers and Stockyards Administration (GIPSA) Trace Analysis Laboratory, shows Agriculture Secretary Tom Vilsack the tiny capsules in which extracts of grain samples are placed prior to analysis by High Performance Liquid Chromatography in Kansas City, MO, on Wednesday, Oct. 23, 2013. . USDA photo by David Funk.

 

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Uploaded on October 29, 2013
Taken on October 23, 2013