When it comes to protein determination, or nitrogen determination, the first thing that people think of is the Kjeldahl analyzer . As a protein measuring instrument widely used in various industries, Kjeldahl nitrogen analyzer has been widely recognized by the industry for its simple operation, high degree of automation, good safety, fast analysis speed and wide application range. Although everyone chooses Kjeldahl to determine the protein or nitrogen content of the sample, but what is the measurement principle of Kjeldahl? Let's take a brief introduction.
The protein is a nitrogen-containing organic compound. The Kjeldahl analyzer combines the sample with sulfuric acid and a catalyst to digest the protein to decompose the protein, and the decomposed ammonia combines with sulfuric acid to form ammonium sulfate. The alkalization distillation then releases the ammonia, absorbs it with boric acid, and then titrates it with a standard solution of sulfuric acid or hydrochloric acid, and multiplies the conversion factor by the acid consumption, which is the protein content. That is to say, the Kjeldahl nitrogen analyzer is based on the classical Kjeldahl method, and the Kjeldahl method is to convert the nitrogen-containing organic matter into inorganic nitrogen ammonium sulfate for detection to obtain the measured value of the nitrogen content. The protein content is obtained with a certain coefficient.
The above is the introduction of the measurement principle of Kjeldahl. Correct operation of the Kjeldahl analyzer can quickly and accurately measure the protein content of the sample, which is very popular among the testing departments. With the continuous improvement of product quality requirements in various industries, Kjeldahl is also experiencing a period of rapid development, and its application in various fields is more and more extensive. At the same time, with the development of science and technology, the technical level of Kjeldahl nitrogen analyzer is also constantly improving, and the degree of intelligence is continuously enhanced. It has made outstanding contributions in terms of product quality and product quality and safety in various fields. Top Yunon is a supplier of Kjeldahl nitrogen analyzers trusted by users. If you have KJV sulphur purchase requirements, please contact us for more information or quotations.
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