Mass spectrometry sheds new light on thallium poisoning cold case

In 1994, Chinese university student Zhu Ling began experiencing stomach pain, hair loss and partial paralysis. By the time doctors diagnosed Ling with thallium poisoning about four months later, she was in a coma. Two decades after the poisoning, mass spectrometry has been used to analyze several of Ling's hairs collected in 1994 and 1995 and established a timeline of her poisoning.

from Latest Science News -- ScienceDaily https://ift.tt/2EtyyaE