• The Kjeldahl method or Kjeldahl digestion (Danish pronunciation: [ˈkʰelˌtɛˀl]) in analytical chemistry is a method for the quantitative determination of...
    13 KB (1,443 words) - 04:21, 22 June 2025
  • Thumbnail for Johan Kjeldahl
    Thorsager Kjeldahl (Danish pronunciation: [joˈhæn ˈkʰelˌtɛˀl] 16 August 1849 – 18 July 1900), was a Danish chemist who developed a method for determining...
    4 KB (407 words) - 02:12, 1 September 2024
  • Look up Kjeldahl in Wiktionary, the free dictionary. Kjeldahl may refer to: Johan Kjeldahl (1849–1900), Danish chemist Kjeldahl method, analytical chemistry...
    206 bytes (58 words) - 05:07, 25 May 2018
  • samples. This automatic Dumas technique has replaced the Kjeldahl method as the standard method of analysis for nutritional labelling of protein content...
    3 KB (418 words) - 15:48, 10 October 2023
  • Thumbnail for Ratwita Gandasoebrata
    meticulous analyses, such as determining plasma protein levels using the Kjeldahl method and electrophoresis (with equipment assembled themselves), as well...
    11 KB (1,049 words) - 04:39, 18 June 2025
  • Retrieved February 5, 2011. A micro-Kjeldahl method is described. The method is more rapid than the ordinary macro-Kjeldahl procedure and is not appreciably...
    41 KB (4,381 words) - 01:27, 17 June 2025
  • Thumbnail for Protein
    organic matter in general. As the name suggests, the Kjeldahl method is applied. More sensitive methods are available. In the absence of catalysts, proteins...
    105 KB (10,969 words) - 16:27, 26 June 2025
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    that would normally react to make soap instead of biodiesel fuel. Kjeldahl method: a measure of nitrogen content in a sample. Organic nitrogen is digested...
    39 KB (4,676 words) - 19:19, 14 May 2025
  • Thumbnail for Protein (nutrient)
    classic assays for protein concentration in food are the Kjeldahl method and the Dumas method. These tests determine the total nitrogen in a sample. The...
    50 KB (5,539 words) - 15:49, 8 June 2025
  • analyzers LECO Corporation, a large manufacturer of combustion analyzers Kjeldahl method, an alternative analysis of CHN content Frederic L. Holmes (1963)....
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  • Thumbnail for Nitrogen
    amount of nitrogen in a chemical substance can be determined by the Kjeldahl method. In particular, nitrogen is an essential component of nucleic acids...
    107 KB (12,510 words) - 18:45, 25 June 2025
  • Thumbnail for Amino acid
    organic matter in general. As the name suggests, the Kjeldahl method is applied. More sensitive methods are available. Biology portal Chemistry portal Amino...
    94 KB (10,037 words) - 18:20, 18 June 2025
  • Thumbnail for Devarda's alloy
    under the form of ammonia, the total nitrogen is then determined by Kjeldahl method. The reduction of nitrate by the Devarda's alloy is given by the following...
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  • amount of nitrogen in a chemical substance can be determined by the Kjeldahl method. In particular, nitrogen is an essential component of nucleic acids...
    34 KB (4,298 words) - 22:07, 27 March 2025
  • 640 ng/mL Nitrogen detection: Kjeldahl method: used primarily for food and requires oxidation of material Dumas method: used primarily for food and requires...
    19 KB (2,284 words) - 02:33, 2 June 2025
  • reduction agent. There are some more methods like Liebig method / Duma's method / Kjeldahl's method and Carius method for estimation of organic compounds...
    6 KB (708 words) - 23:14, 24 May 2025
  • Thumbnail for Chemical test
    metals The Gilman test tests for the presence of a Grignard reagent The Kjeldahl method quantitatively determines the presence of nitrogen Nessler's reagent...
    6 KB (709 words) - 15:11, 12 October 2024
  • Nitrogen solubility index (category Protein methods)
    divided by the nitrogen in the initial sample, as measured by the Kjeldahl method. The relevance of the NSI is based on the fact that proteins are the...
    2 KB (287 words) - 18:13, 9 April 2023
  • — Direct gravimetric method [Withdrawn without replacement] ISO 332:1981 Coal — Determination of nitrogen — Macro Kjeldahl method [Withdrawn without replacement]...
    258 KB (37,454 words) - 15:11, 21 August 2024
  • nitrogen, either by Dumas or Kjeldahl methods total fat, traditionally by a solvent extraction, but often now by secondary methods such as NMR crude ash (total...
    5 KB (569 words) - 21:42, 29 May 2025
  • PMID 15413335. Vickery, Hubert Bradford (1946). "The Early Years of the Kjeldahl Method to Determine Nitrogen". The Yale Journal of Biology and Medicine. 18...
    7 KB (774 words) - 23:58, 19 June 2025
  • Thumbnail for Lactobacillus vaccine
    of 3.68 mg in 100 ml solution (based on the dry material, using the Kjeldahl method). Using the conversion factor of 6.25 to convert nitrogen concentration...
    96 KB (10,570 words) - 17:52, 9 June 2025
  • derived products — Determination of nitrogen content by the Kjeldahl method — Titrimetric method ISO 3189 Sockets for wire ropes for general purposes ISO...
    205 KB (28,951 words) - 23:36, 17 March 2025
  • Denmark to study Danish brewing techniques with Johan Kjeldahl and introduced the Kjeldahl method into British brewing. He also met Emil Christian Hansen...
    3 KB (370 words) - 17:41, 1 February 2025
  • tests for crude protein content used in the food industry (Kjeldahl method and Dumas method are used for official purposes) measure total nitrogen. Accidental...
    94 KB (10,430 words) - 01:02, 23 June 2025
  • Protein detection (category Protein methods)
    concentrations of the defatted powdered immunogens are set through the Kjeldahl method with 46.4% raw defatted walnut and 34.9% roasted defatted walnut. Polyclonal...
    31 KB (3,711 words) - 12:41, 2 May 2025
  • Technicon Corporation. The first applications were for clinical analysis, but methods for industrial and environmental analysis soon followed. The design is...
    18 KB (2,261 words) - 14:39, 18 July 2024
  • Thumbnail for Mille Lacs Lake
    the lake is phosphorus limited, which combines with relatively low total Kjeldahl Nitrogen to largely limit algal bloom growths. Zebra mussels, an aquatic...
    20 KB (2,068 words) - 00:07, 24 May 2025
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    to increase the apparent protein content. Standard tests, such as the Kjeldahl and Dumas tests, estimate protein levels by measuring the nitrogen content...
    63 KB (6,528 words) - 02:59, 28 June 2025
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    wastewater from toilets and sinks. The typical concentrations of BOD and total Kjeldahl nitrogen for dairy wastewater range from 1200 to 5000 mg/L and 30 to 200 mg/L...
    58 KB (7,849 words) - 05:15, 17 May 2025