Fully automatic Kjeldahl nitrogen analyzer: an accurate and efficient protein analysis tool.

    In scientific research, food testing, feed analysis, and other fields, accurate determination of protein content has always been crucial. In recent years, the emergence of fully automatic Kjeldahl nitrogen analyzers has provided an efficient and accurate solution to this demand. This instrument not only greatly improves the efficiency of protein determination, but also ensures the accuracy and reliability of the results, becoming an indispensable "tool" for many laboratories.

    The working principle of the fully automatic Kjeldahl nitrogen analyzer is based on the Kjeldahl nitrogen determination method. The instrument automatically adds reagents, distills, absorbs, and titrates the digested samples, and outputs the test results. The results can be nitrogen content or converted to protein content. The specific reaction steps are that the ammonium sulfate produced after the sample digestion reacts with the alkali to produce ammonia. The ammonia and steam are condensed through the condenser and collected in the absorption liquid with boric acid added. At the same time, the indicator in the absorption liquid changes color, and then the instrument performs automatic titration. The color sensor can automatically determine the titration endpoint, and the nitrogen content of the sample can be calculated according to the consumption of the standard titration acid.

    The significant advantage of the fully automatic Kjeldahl nitrogen analyzer is its high degree of automation and efficiency. The instrument adopts advanced automation technology, and all steps are automatically completed according to the program. It automatically completes the steps of adding alkali, boric acid, diluent, distilled water, etc.; it automatically completes the operation steps of distillation, absorption, titration, etc.; after the titration is completed, the reaction cup is automatically emptied and cleaned. In addition, the modern fully automatic Kjeldahl nitrogen analyzer has a built-in high-capacity 16G storage capacity, and the test result storage capacity is 5 million. The test results are in Excel tables and can be directly copied to a USB flash drive. Equipped with a high-speed thermal printer, the test report can be automatically printed after the test is completed. With the wifi networking function, the test results can be directly uploaded to the platform, which is convenient for users to view and manage data and generate detailed test reports.

    The fully automatic Kjeldahl nitrogen analyzer has a wide range of applications. It is not only suitable for protein determination of common samples such as food and feed but also can be used for nitrogen content analysis of various samples such as soil, water samples, chemicals, etc. In the food industry, the instrument can be used for nutrient analysis to help food manufacturers accurately label the protein content in products and ensure that the products meet relevant standards and consumer needs. In the feed industry, the instrument can be used for feed formula design to ensure the appropriate proportion of protein in the feed and improve feed utilization and animal growth performance. In addition, the instrument can also be used in environmental monitoring, pharmaceutical research and development, plant nutrition analysis, and other fields, providing strong support for scientific research and industrial production.

     In summary, the fully automatic Kjeldahl nitrogen analyzer plays an important role in the field of protein analysis with its accuracy, efficiency, and automation. With the continuous advancement of science and technology and the continuous expansion of application fields, the fully automatic Kjeldahl nitrogen analyzer will continue to provide more convenient and reliable solutions for scientific research and industrial production.

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