Mass spectrometry sheds new light on thallium poisoning cold case

Amadeo15 Dec, 2018News

Two decades after a poisoning, an associate of Ling�s family asked Richard Ash, an associate investigate scientist in a University of Maryland�s Department of Geology, to investigate several of Ling�s hairs collected in 1994 and 1995 to settle a timeline of her poisoning. Although Ash specializes in examining geological samples, he frequently helps a accumulation

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