Jaroslav Heyrovský, Czech chemist and academic, Nobel Prize laureate (d. 1967)
Jaroslav Heyrovský (Czech pronunciation: [ˈjaroslav ˈɦɛjrofskiː] (listen)) (December 20, 1890 – March 27, 1967) was a Czech chemist and inventor. Heyrovský was the inventor of the polarographic method, father of the electroanalytical method, and recipient of the Nobel Prize in 1959 for his discovery and development of the polarographic methods of analysis. His main field of work was polarography.