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Kjeldahl Nitrogen Analyzer manufacturers take you to understand the issues to be aware of when using the Kjeldahl method
Time of issue:
2021-09-15
Kjeldahl Nitrogen Analyzer manufacturers tell you that from the principle of Kjeldahl nitrogen determination: Kjeldahl nitrogen determination method is to convert nitrogen-containing organic matter into inorganic nitrogen ammonium sulfate for detection, in order to obtain the measured value of nitrogen content multiplied by a certain coefficient of the protein content.
Kjeldahl Nitrogen Analyzer manufacturers tell you that from the principle of Kjeldahl nitrogen determination: Kjeldahl nitrogen determination method is to convert nitrogen-containing organic matter into inorganic nitrogen ammonium sulfate for detection, in order to obtain the measured value of nitrogen content multiplied by a certain coefficient of the protein content.
Kjeldahl Nitrogen Analyzer manufacturers tell you that nitrogenous organics are not just proteins, but also melamine and so on. In addition, the current national standard and internationally accepted determination method of protein content in food is the classical Kjeldahl method, which provides an opportunity for counterfeiters.
Kjeldahl Nitrogen Analyzer manufacturers tell you that the nitrogen content in protein does not exceed 30%, while the biggest feature of melamine is its high nitrogen content (66%), which is colorless and odorless when dissolved in water, that is to say, in a glass of water Adding melamine, and then using the Kjeldahl method, the results showed that it contained protein. Since the "Kjeldahl method" can only measure the nitrogen content, it cannot identify whether there are illegal chemicals in the feed, so the milk powder added with melamine can theoretically measure a higher protein content.
The above information is the Kjeldahl Nitrogen Analyzer manufacturer's introduction and analysis of the issues to be aware of when using the Kjeldahl method, hope it helps you.
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