50 years - Austria / II. Republic of Austria 1973 - 4 Shilling

Fritz Pregl was born on September 3, 1869 in Ljubljana. After graduation he enrolled at the medical faculty of the University of Graz. After completing his doctorate, Pregl devoted himself entirely to physiology and completed his habilitation in 1899. He began to study chemistry, recognizing that modern physiological research is not possible without thorough chemical knowledge. To deepen this even further, Pregl studied in Germany for a year before returning to Graz in 1905. He devoted himself to the development of quantitative organic micromethods for elemental analysis and received in 1923 for this work awarded the Nobel Prize. The starting point was the problem of the small amounts of substances of animal or plant substances available for examination. In his years of research, he developed, among other things, a time-saving automatic combustion furnace for the determination of carbon and hydrogen. Its development of the microanalysis method has made it possible to carry out analyzes on incredibly small amounts of substance of 5 to 3 milligrams with the same accuracy, but saving time, labor and costs. In addition, this method can perform up to 50 different analyzes. Despite numerous appointments Pregl remained true to his place of work Graz, where he died on 13 December. The brand image shows a portrait of the Nobel Prize winner.