Pregl, Fritz (frĭts prāˈgəl) [key], 1869–1930, Austrian physiologist and chemist, M.D. Univ. of Graz, 1894. He taught at the universities of Innsbruck (1910–13) and Graz (from 1913). For his methods of quantitative organic microanalysis he received the 1923 Nobel Prize in Chemistry. His other contributions include several micromethods for measuring atomic groups and a sensitive microbalance.