Christen Thomsen Barfoed
Christian Thomsen Barfoed ( born June 16, 1815 in Stege, † April 30, 1889 in Copenhagen) was a Danish chemist who was a professor at the Royal Veterinary and Agricultural University from 1858 to 1887. He devoted himself to chemical analysis and developed an after him called a Barfoed'sche sample method for distinguishing between monosaccharides and di-, oligo-or polysaccharides. From 1865 he was a member of the Royal Danish Academy of Sciences.
Life
Christian Thomsen Barfoed was born in 1815 in Stege son of a pharmacist and was in 1835 the state examination in pharmacy and in 1839 the examination as a candidate of applied natural science at the Polytechnic College in Copenhagen, currently Technical University of Denmark. From 1839 to 1842 he completed further studies abroad, eg in Berlin, Vienna and Paris, where he dealt in particular with chemistry and mineralogy. After he had then first given private lessons, he served from 1845 as professor of chemistry and physics, and from 1850 to 1857 as a professor at the Veterinary University in Copenhagen. From 1850 to 1859 he also taught chemistry at the University of the Danish army. In 1858 he became an associate professor of chemistry and pharmacy at the founded two years earlier Royal Veterinary and Agricultural University, where he established the chemical laboratory in the following years and was active until 1887.
Christian Thomsen Barfoed was married from 1846 and the father of one son and two daughters. He was, among other friends with Jacob Christian Jacobsen, the founder of the Carlsberg Brewery, and played a major role in the development of the Carlsberg Laboratory in 1876. Until his death he was a member of the Executive Board of the laboratory and the Board of the Carlsberg Foundation that financed the laboratory among others. Among his pupils was, among others, Johan Kjeldahl, based on its recommendation, the head of the chemical department of the Carlsberg Laboratory took over after a stint as an assistant in Barfoeds laboratory and later developed the Kjeldahl nitrogen determination. He died in 1889 in Copenhagen.
Scientific work
Christian Thomsen Barfoed dealt in particular with the development of chemical analysis for the application in the pharmaceutical industry, in agriculture and in the production of food and spirits. His main work is considered a first time published in 1863 and 1880 published in its second edition textbook of analytical chemistry with the title " i Lærebog the analytiske Kemi. Prøvemidlerne above the uorganiske kvalitative analysis ", which along with his 1878 published work " " until the early 20th century, the teaching and practice in chemical analysis in Denmark coined De organiske Stoffers kvalitative analysis. Named after him in 1873 " the list shall of glucose addition dextrin and related bodies Over ", first described by him in the Journal of Analytical Chemistry under the title Barfoed'sche sample to distinguish between monosaccharides and di-, oligo-or polysaccharides.
Awards
Christian Thomsen Barfoed was recorded in 1865 in the Royal Danish Academy of Sciences and as a Knight in the Order of Dannebrog, from which he also in 1878 the Cross of Honour ( Dannebrogordenens Hæderstegn ) received and was promoted to commander in 1887. The Uppsala University (1877 ) and the University of Copenhagen (1879 ) awarded him an honorary doctorate. In addition, he was in 1885 appointed honorary member of the Danish Association of Pharmacists.
Works (selection)
- The rene Krystallographi 's Hovedtræk. Copenhagen 1861
- Analyzes af uorganiske, i Vand opløselige alkali Old: til Brug ved de første Øvelser i chemisk analysis. Copenhagen 1863
- I Lærebog the analytiske Kemi. Prøvemidlerne above the uorganiske kvalitative analysis. Copenhagen 1863 ( second edition 1880)
- De organiske Stoffers kvalitative analysis. Copenhagen in 1878; German edition: Textbook of organic qualitative analysis. Copenhagen 1881