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Dumas method

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  • Dumas method — For the method to determine the molecular weight of an unknown compound, see Dumas method of molecular weight determination. The Dumas method in analytical chemistry is a method for the quantitative determination of nitrogen in chemical… …   Wikipedia

  • Dumas method of molecular weight determination — The Dumas method of molecular weight determination was historically a procedure used to determine the molecular weight of an unknown substance. The Dumas method is appropriate to determine the molecular weights of volatile organic substances that …   Wikipedia

  • Dumas — is a Southern French topographic surname, with fused preposition and definite article du, for someone who lived in an isolated dwelling in the country rather than in a village, from Occitan mas farmstead (Late Latin mansum, mansus).[1] Contents 1 …   Wikipedia

  • Dumas, Jean-Baptiste-André — ▪ French chemist born July 14, 1800, Alais [now Alès], France died April 10, 1884, Cannes  French chemist who pioneered in organic chemistry (chemistry), particularly organic analysis.       Dumas s father was the town clerk, and Dumas attended… …   Universalium

  • Dumas , Jean Baptiste André — (1800–1884) French chemist Dumas was educated in classics at the college in his native city of Alais and intended to serve in the navy. However, after Napoleon s final defeat he changed his mind and became apprenticed to an apothecary. In 1816 he …   Scientists

  • Kjeldahl method — The Kjeldahl method in analytical chemistry is a method for the quantitative determination of nitrogen in chemical substances developed by Johan Kjeldahl during the 1800s. [Julius B. Cohen Practical Organic Chemistry 1910… …   Wikipedia

  • Jean-Baptiste Dumas — Born 14 July 1800 …   Wikipedia

  • Protein (nutrient) — This article is about protein as a nutrient. For protein as a class of molecule, see protein. For other uses, see bodybuilding supplement. Amino acids are the building blocks of protein. Proteins are polymer chains made of amino acids linked… …   Wikipedia

  • Protein adulteration in the People's Republic of China — refers to the adulteration and contamination of several food and feed ingredients with inexpensive melamine and other compounds such as cyanuric acid, ammeline and ammelide. These adulterants can be used to inflate the apparent protein content of …   Wikipedia

  • Chinese protein export contamination — was first identified after the wide recall of many brands of cat and dog food starting in March 2007 (the 2007 pet food recalls), and eventually involved the human food supply. The recalls in North America, Europe and South Africa came in… …   Wikipedia

  • Cervical cap — This article is about the contraceptive device. For devices used to help achieve pregnancy, see conception device. Cervical cap Oves brand cervical cap (discontinued) Background Birth control type …   Wikipedia

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