CHEMIST

Johan Kjeldahl

1849 - 1900

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Johan Gustav Christoffer Thorsager Kjeldahl (Danish pronunciation: [joˈhæn ˈkʰelˌtɛˀl] 16 August 1849 – 18 July 1900), was a Danish chemist who developed a method for determining the amount of nitrogen in certain organic compounds using a laboratory technique which was named the Kjeldahl method after him. Read more on Wikipedia

His biography is available in different languages on Wikipedia. Johan Kjeldahl is the 442nd most popular chemist (up from 465th in 2019), the 361st most popular biography from Denmark (up from 426th in 2019) and the 7th most popular Danish Chemist.

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Among CHEMISTS

Among chemists, Johan Kjeldahl ranks 442 out of 602. Before him are Hippolyte Mège-Mouriès, Felix Hoppe-Seyler, Juan José Elhuyar, Henri Braconnot, Eugène-Anatole Demarçay, and Michael Grätzel. After him are Carl Remigius Fresenius, Anders Jahan Retzius, Alexander William Williamson, James Crafts, Constantin Fahlberg, and J. L. B. Smith.

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Contemporaries

Among people born in 1849, Johan Kjeldahl ranks 68. Before him are Mohammad Yaqub Khan, Olena Pchilka, Albert Heim, Hugo von Seeliger, Ida Straus, and William Ernest Henley. After him are Ferdinand Brunetière, Pedro Montt, Jacob Riis, Carl Fredrik Hill, Emil Zuckerkandl, and Charles F. Brush. Among people deceased in 1900, Johan Kjeldahl ranks 64. Before him are Leonardo Murialdo, Piet Joubert, Sergei Korsakoff, Francišak Bahuševič, Alexandre Falguière, and Rudolf Charousek. After him are Edmond de Sélys Longchamps, Adrien René Franchet, Jasper Francis Cropsey, Leonhard Graf von Blumenthal, James Edward Keeler, and Jean Frédéric Frenet.

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In Denmark

Among people born in Denmark, Johan Kjeldahl ranks 361 out of 1,032. Before him are Willy Hansen (1906), Torben Ulrich (1928), Kim Larsen (1945), Harald Klak (null), Martha of Denmark (1277), and Vilhelm Buhl (1881). After him are Georg Jensen (1866), Christina of Denmark, Queen of Sweden (1120), Peter Andreas Heiberg (1758), Margrethe Vestager (1968), Kristian Zahrtmann (1843), and Christian August Lorentzen (1749).

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Among CHEMISTS In Denmark

Among chemists born in Denmark, Johan Kjeldahl ranks 7. Before him are Henrik Dam (1895), S. P. L. Sørensen (1868), Johannes Nicolaus Brønsted (1879), Sophia Brahe (1556), Rasmus Bartholin (1625), and Morten P. Meldal (1954). After him are Hans Peter Jørgen Julius Thomsen (1826).

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