- Kjeldahl nitrogen
- азот, визначений методом К'єльдаля (органічний та амонійний азот)
English-Ukrainian analytical chemistry dictionary. 2013.
Kjeldahl nitrogen
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Total Kjeldahl Nitrogen — or TKN is the sum of organic nitrogen; ammonia (NH3) and ammonium (NH4+) in biological wastewater treatment.TKN is determined in the same manner as organic nitrogen, except that the ammonia is not driven off before the digestion step.It is named… … Wikipedia
Total Kjeldahl Nitrogen — Als Total Kjeldahl Nitrogen (Gesamter Kjeldahl Stickstoff) oder TKN wird die Summe von organischem Stickstoff und Ammonium (NH4+) bezeichnet. Dieser Wert wird zum Beispiel in der biologischen Abwasserbehandlung benötigt. Der TKN wurde nach dem… … Deutsch Wikipedia
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
Kjeldahl — may refer to:*Johan Kjeldahl (1849 1900), Danish chemist *Kjeldahl method for determining total nitrogen … Wikipedia
Kjeldahl flask — n a round bottomed usu. long necked glass flask for use in digesting the sample in the Kjeldahl method of nitrogen analysis … Medical dictionary
Kjeldahl — Johan G.C., Danish chemist, 1849–1900. See K. apparatus, K. method, macro K. method, micro K. method. * * * Kjel·dahl kel .däl adj of, relating to, or being a method for determining the amount of nitrogen (as in an organic substance) by digesting … Medical dictionary
Kjeldahl , Johan Gustav Christoffer Thorsager — (1849–1900) Danish chemist Kjeldahl, the son of a physician, was born at Jagerpris in Denmark and educated at the Roskilde Gymnasium and the Technical University of Denmark, Copenhagen. After working briefly at the Royal Veterinary and… … Scientists
Kjeldahl-Aufschluss — Schema der Bestimmung Die Kjeldahlsche Stickstoffbestimmung ist eine 1883 entwickelte quantitative, häufig verwendete Bestimmungsmethode des Stickstoffgehaltes. Die Methode wurde nach dem dänischen Chemiker Johan Kjeldahl – Mitarbeiter einer noch … Deutsch Wikipedia
Nitrogen — carbon ← nitrogen → oxygen ↑ N ↓ P … Wikipedia
nitrogen group element — ▪ chemical elements Introduction any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… … Universalium
kjeldahl — ˈkelˌdäl adjective Usage: usually capitalized Etymology: after Johan G. C. T. Kjeldahl died 1900 Dan. chemist : of, relating to, or being a method for determining the amount of nitrogen (as in an organic substance) by digesting a sample with… … Useful english dictionary
