Knowledge without frontiers Knowledge Without Frontiers | Page 51

Microanalysis device. Faculty of Education University of Ljubljana. Photo: Nebojša Tejić, STA. In the past, questions were raised as regards Pregl’s attitude to Slovenian identity and culture. But it is indisputable that he expressed gratitude to the university in his native Ljubljana when he donated a replica of his microanalysis device to the University of Ljubljana in 1925. One part of the device has been preserved by the Faculty of Education, while a second part has unfortunately been lost. PREGL'S METHOD IN PRACTICE In the subsequent years, Pregl’s method would lead to numerous new discoveries and influenced the development of chemistry, physics, biology, and medicine. For example, SECOND ATTEMPT The Berlin publisher Springer published using his method, researchers of male sex Pregl’s book on quantitative organic microa- were present in urine. They succeeded in iso- nated for the Nobel Prize. The nomination did hormones proved that some of the hormones lating 15 mg of chemically pure hormone from 15,000 litres of urine; without Pregl’s method they would have needed at least 100 times more “raw material”. nalysis in 1917, the same year he was first nomi- not succeed because the prevailing opinion was that his contribution was too narrow and too insignificant. He was nevertheless nominated once again in 1923, this time successfully. 51