Despite many efforts, the mechanism of this still-used detection reaction from 1904 is still unknown

150 Years Alfred Wöhlk

Great Architecture and Chemists in Dahlem
Walking tour through Dahlem, one of the richest parts of Berlin and an important historical center for academic research

50th Anniversary: Death of Hertha Sponer
Renowned researcher in the field of molecular spectroscopy, co-developed the Birge-Sponer method

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150th Birthday: Søren Sørensen
Danish biochemist who developed the pH scale

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200th Birthday: William Allen Miller
British chemist used spectroscopy to study the stars

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50th Anniversary: Death of Elmer McCollum
American biochemist discovered the first vitamins

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