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11:48 Sep 26, 2019 |
German to English translations [PRO] Science - Chemistry; Chem Sci/Eng / Titration/substance data | |||||||
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| Selected response from: Johannes Gleim Local time: 03:28 | ||||||
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Summary of answers provided | ||||
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5 +1 | content and concentration |
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4 | content |
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4 | Quantity |
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Discussion entries: 1 | |
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content Explanation: I think the term "content" is correct here. :) |
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content and concentration Explanation: Please use both terms: Definierter Gehalt Gehalt % g/g =Gehalt 1 / (Dichte * 0.9982) = Gehalt Titration (wasserfrei) Gehalt Stickstoff (Kjeldahl) Gehaltsbestimmungen Gehaltsaenderung zur Titration 30 min.: 0.48% => Specified content Content % g / g = content 1 / (density * 0.9982) = Titrated concentration (anhydrous) Nitrogen concentration (Kjeldahl) determination of contents concentration change against titration 30 min .: 0.48 % The Kjeldahl method or Kjeldahl digestion (Danish pronunciation: [ˈkʰɛltæːˀl]) in analytical chemistry is a method for the quantitative determination of nitrogen contained in organic substances plus the nitrogen contained in the inorganic compounds ammonia and ammonium (NH3/NH4+ : The end of the condenser is dipped into a known volume of standard acid (i.e. acid of known concentration). A weak acid like boric acid (H3BO3) in excess of ammonia is often used. Standardized HCl, H2SO4 or some other strong acid can be used instead, but this is less commonplace. The sample solution is then distilled with a small amount of sodium hydroxide (NaOH). : Indirect back titration is used instead if strong acids were used to make the standard acid solution: strong base of known concentration (like NaOH) is used to neutralize the solution. : The Kjeldahl method's universality, precision and reproducibility have made it the internationally recognized method for estimating the protein content in foods and it is the standard method against which all other methods are judged. It is also used to assay soils, waste waters, fertilizers and other materials. It does not, however, give a measure of true protein content, as it measures nonprotein nitrogen in addition to the nitrogen in proteins. https://en.wikipedia.org/wiki/Kjeldahl_method I suppose the context refers only to such or similar methods. Thus I would waive other terms like percentage. |
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Quantity Explanation: Quantity and in some cases like Gehalt Stickstoff can also use Amount of, as in Amount of nitrogen. https://www.linguee.com/english-german/search?source=auto&query=Gehaltsbestimmungen |
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