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Kjeldahl
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Kjeldahl
Kjeldahl may refer to:
Johan Kjeldahl (1849–1900), Danish chemist
Kjeldahl method, analytical chemistry method for determining total nitrogen
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Kjeldahl
Kjeldahl Biochem. (ˈkɛldɑːl) The name of Johann Kjeldahl (1849–1900), Danish brewing chemist, used attrib. and in the possessive to denote a method of estimation of nitrogen invented by him, in which the organic substance to be analysed is treated with concentrated sulphuric acid and the ammonium su...
Oxford English Dictionary
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Johan Kjeldahl
Kjeldahl method
In order to solve the problem of determining accurate nitrogen content in a sample, Kjeldahl developed a method which involves a two-step Kjeldahl equipment is used extensively all over the world.
Literature
Jessen-Hansen, H. (1932) Johan Kjeldahl, pp. 169–172 in: Meisen, V.
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Kjeldahl method
The Kjeldahl method or Kjeldahl digestion () in analytical chemistry is a method for the quantitative determination of nitrogen contained in organic substances This method was developed by Johan Kjeldahl in 1883.
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Kjeldhal nitrogen
Kjeldahl nitrogen may refer to:
Kjeldahl method
Total Kjeldahl Nitrogen
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colorimetrically
colorimetrically, adv. (ˌkʌlərɪˈmɛtrɪkəlɪ) [f. colorimetrical a. + -ly2.] By means of a colorimeter.1909 in Cent. Dict. Suppl. 1946 Nature 3 Aug. 169/2 Determining cytochrome oxidase activity colorimetrically. 1964 Corner & Cowey in Oceanogr. & Marine Biol. II. 159 In Phaeodactylum tricornutum the p...
Oxford English Dictionary
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Frans Alfons Janssens
He was sent by his bishop to the brewery school in Munich, then to the Carlsberg Laboratory in Copenhagen, where he worked with Johan Kjeldahl and Emil
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1900 in Denmark
1805)
AprilJune
9 May – Carit Etlar, author (b. 1816)
29 May – Carl Lange, physician and psychologist (b. 1834)
OctoberDecember
18 June – Johan Kjeldahl
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John Simpson Ford
During his time in the firm he made an important trip to Denmark to study Danish brewing techniques with Johan Kjeldahl and introduced the Kjeldahl method
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البروتين الكلي للمصل
الطريقة التقليدية لقياس البروتين الكامل تتم باستخدام كاشف بيورت (اختبار بيوريت) (Biuret reagent) لكن الطرق الكيميائية الأخرى كطريقة كيلدال (Kjeldahl method
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2008年中国奶制品污染事件的始末是怎样的?三鹿集团投放三聚氰胺于婴儿奶粉,有哪些原因和细节值得关注?
3、凯氏定氮法 凯氏定氮法是由一个叫Kjeldahl的哥们发明的,用不(百)正(度)确(搜)的结果没找到这个人,可能是上网姿势不对,打住··· 按书(百)本(度)记(百)载(科)的说法,凯氏定氮法是测定化合物或混合物中总氮量的一种方法。
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Copper(II) selenite
Uses
Copper(II) selenite can be used a catalyst for Kjeldahl digestion.
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Dumas method
(except in high fat content foods where the Kjeldahl method is still preferred due to fire risks). more for Kjeldahl.
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Devarda's alloy
After conversion under the form of ammonia, the total nitrogen is then determined by Kjeldahl method. See also
Kjeldahl method
Nitrate test
Nitrite test
Nascent hydrogen
Marsh test
Detection of:
Arsine
Stibine
Raney nickel, prepared from an Al,
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