| Fritz Feigl | |
|---|---|
| Born | May 15, 1875 Vienna Austria-Hungary |
| Died | January 23, 1971 (aged 95) Rio de Janeiro Brazil |
| Nationality | Austrian til 1944 Brazilian |
| Alma mater | University of Vienna |
| Doctoral advisor | Wilhelm Schlenk |
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Fritz Feigl (May 15, 1891 - January 23, 1971) was an Austria-born chemist. He taught at the University of Brazil.
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Feigl was born and studied in Vienna, but owing to his military service in the First World War he had to interrupt his studies. He received his Ph.D. for work with Wilhelm Schlenk in 1920. After his habilitation in 1928 he became a Professor at the University of Vienna. He was forced to retire after the Nazi occupation of Austria in 1938.
Feigl was able to get to Belgium and work there. After the occupation of Belgium he was imprisoned in a concentration camp, but was able to reach Portugal and from there Brasil in 1940.
He worked at the University of Rio de Janeiro and became a Brazilian citizen in 1944.
Fritz Feigl is known worldwide as the creator of "touch analysis", a simple and efficient technique where analytic assays are executed in only one, or a few drops, of a chemical solution, preferably in a great piece of filter paper, without using any sophisticated instrumentation.
Techniques and reagents to discover PH of samples like a little piece of paper with some reagents which shows if a solution is acid, basic or neutral.
He also has developed a way to know if fishes eaten by Amazon population are contaminated by plumber. Poor populations by the Amazon rivers were taught to easily use that technique to find out contaminated fishes and discharge them.
A less known contribution is the development of "luminol", a substance used by forensic investigations to detect presence of blood, even if the scene is washed and cleaned.