Finding the poison: Dr. Marc-Michael Blum explains the analytical chemistry needed to identify nerve agents in patients

The German media reported on September 9 that Russian opposition figure Alexey Navalny was poisoned with a new type of “Novichok” nerve agent, more dangerous than any variation previously identified. Earlier in the month, Meduza science editor Alexander Ershov interviewed biochemist Marc-Michael Blum to find out more about how analytical chemistry is able to identify these poisons in patients and what the outlook is for Navalny’s recovery. (Read the interview’s transcript here.)

On social media, it’s easy to find skeptics who question the German specialists’ conclusions — particularly because the implications of a nerve-agent attack against an opposition leader on his home soil are severe and strongly suggest the state authorities’ involvement — but such incredulity is hard to maintain in the face of Dr. Blum’s explanations.

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