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AN ATOMIC ABSORPTION SPECTROPHOTOMETER IS USED TO DETECT METALS SUCH AS ARSENIC IN PESTICIDE SAMPLES BY THE... NARA .tif Scope and content General notes Local identifier DA Environmental Protection Agency NARAAuthor Messina John Photographer File ANATOMICABSORPTIONSPECTROPHOTOMETERISUSEDTODETECTMETALS SUCHASARSENIC INPESTICIDESAMPLESBYTHE