Fritz (Friderik) Pregl (September 3, 1869 – December 13, 1930) was an Austrian chemist of Slovenian descent.
FritzPregl - Biography Nobel Foundation, acquired on June 1, 2005.
Physician Friderik Pregl, Nobelist of Slovenian Descent, Zdravniški vestnik, 2001; 70: 399–404.
en.wikipedia.org /wiki/Fritz_Pregl (124 words)
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FritzPregl (September 3, 1869 - December 13, 1930), was a Slovenian-Austrian chemist, winner of Nobel prize in chemistry for 1923.
Pregl continued with this work when he returned to the Graz University in 1913; he was appointed Dean of the Medical Faculty for the year 1916-1917 and Vice-Chancellor of Graz University for 1920-1921.
Pregl's scientific interest has switched from mainly physiology and physiological chemistry in his early years to the study of the constitution of chemical compounds, in particular the investigation of bile acids.
FritzPregl was born on Sept. 3, 1869, in Laibach, now Ljubljana in Yugoslavia, but then a provincial capital in the Austro-Hungarian Empire.
In 1910 Pregl was called to the University of Innsbruck as full professor and head of the Institute of Medical Chemistry, only to return 3 years later in the same capacity to Graz, where he remained until his death on Dec. 13, 1930.
Pregl's great contribution to chemistry and medical science was the creation, in the years 1910-1917, of the methods of quantitativeorganicmicroanalysis.
FritzPregl was born in Laibach* on September 3, 1869, and attended the local "Gymnasium" (grammar school), from where he proceeded to the University of Graz to study medicine.
Pregl continued with this work when he was recalled to Graz University in 1913; he was appointed Dean of the Medical Faculty for the year 1916-1917 and Vice-Chancellor of Graz University for 1920-1921.
Pregl had, in the early stages of his investigations, avoided publishing individual reports on his experiments, until he had convinced himself that his methods did not only work in his own, but also in other laboratories.
FritzPregl was born in 1869, in Laibach, Austria (now Ljubljana, Republic of Slovenia), the only son of Friderike Schlacker and Raimund Pregl.
Pregl also took on the combustion analysis of carbon and hydrogen, improving that process by scaling down the size of the analytic equipment and adding a universal filling for the combustion tube that consisted of a mixture of lead chromate and copper oxide set in between two pieces of silver.
Pregl and his team also went on to devise new microanalytic techniques for boiling substances to determine their molecular weight by creating apparatus that impeded the substances' contamination with air.
Pregl taught at the University of Innsbruck (1910–13) and at the University of Graz from 1913 until his retirement in 1930.
Pregl’s authoritative monograph, Die quantitative Microanalyse (1917), was republished in several enlarged and revised editions and translated into many languages.
Pregl was awarded the 1923 Nobel Prize in chemistry for “his invention of the methods of microanalysis of organic substances.”
This work is devoted to the determination of the contents of the different elements in organic compounds, the aim of which is to determine the quantities of the various elements in organic, so-called carbon compounds - whether these compounds occur ready-formed in the animal and vegetable kingdom or have been prepared in a chemist's laboratory.
If one wishes to sum up the significance of the field to which Pregl's work belongs, one could say that without this organic elemental analysis there would be no organic chemistry in the scientific sense, neither would we possess the extensive chemical industry that has arisen out of it.
Pregl succeeded, by introducing new apparatus and techniques, in reducing to the almost incredibly small amount of 5-3 milligrams and even less the quantity normally required for the quantitative determination of various elements in organic compounds.
Pregl's microanalytical methods were a great contribution to chemistry, biochemistry and medical science; for his work in this field he received the 1923 Nobel Prize in Chemistry.
As a result of an interest in biological substances that could only be obtained in extremely small quantities, he had to decide whether to process tons of raw materials or search for new analytical methods that would be reliable on minute quantities.
Pregl was born in Ljubljana (Slovenia) but at age 18, after the death of his father, he moved with his mother to Graz, Austria, where he received the M.D. degree in 1894.
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On his return to Graz in 1905 Pregl worked at the Medico-Chemical Institute under K. Hofmann and was appointed forensic chemist for the Graz circuit in 1907.
Recognition for his work was first accorded with the Lieben Prize for Chemistry from the Imperial Academy of Science in Vienna (1914), an honorary doctorate in philosophy from the University of Gottingen (1920); in 1921 he was elected Corresponding Member by the Academy of Sciences in Vienna.
He then, in 1917, set down his findings in a monograph entitled Die quantitative Microanlalyse (published by J. Springer, Berlin).
Haber, Fritz (1868-1934), German chemist and Nobel laureate, best known for his development of an economical method of ammonia synthesis.
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Middle East Open Encyclopedia: Fritz Pregl(Site not responding. Last check: 2007-11-01)
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Pregl studied medicine at the University of Graz, receiving his M.D. in 1894.
Pregl was highly skilled in the design and construction of apparatus for microanalytical research and in 1923 he was awarded the Nobel prize for his microchemical feats.
