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    • Automatic Kjeldahl tester ZDDN-II is also called full-automatic Kjeldahl tester, full-automatic nitrogen tester, etc., designed by Top Yunong based on the Kjeldahl method. A product, the nitrogen determination instrument is mainly used to detect the content of ammonia nitrogen and protein nitrogen in food, food, dairy products, beverages, feed, soil, water, drugs, sediments and chemicals. Please contact Top Yunong for the price of the automatic Kjeldahl meter!
    • ZDDN-II
    • Automatic type Kjeldahl meter is also called full-automatic Kjeldahl meter , automatic nitrogen meter, etc. It is a product designed according to the principle of Kjeldahl method. This instrument is also a necessary inspection equipment in the QS and HACCP certification of food factories and drinking water factories.


      working principle:
      The automatic type Kjeldahl meter is designed and manufactured based on the international Kjeldahl method. The main unit of this instrument uses an automatic steam generator. With the cooperation of a liquid level regulator, the steam can be made in tens of seconds Smooth output for use in stills. The lye under the control of the first executive body flows through the distillation tube into the quantitative digestion tube, so that the ammonia fixed in the acid liquid volatilizes under alkaline conditions. The steam under the control of the second executive body distills the sample under alkaline conditions to completely volatilize the ammonia. The volatilized ammonia is condensed by the condenser, completely fixed in boric acid, and then titrated to At the end point, calculate the nitrogen content, and then multiply it by the protein conversion factor to get the protein content.


    • Automatic Kjeldahl nitrogen analyzer TOP Yunong ZDDN-II-A type Kjeldahl nitrogen meter can realize one-button automatic reagent addition, automatic distillation and separation of samples, and automatic termination of distillation仪 产品。 Instrument products. Automatic Kjeldahl nitrogen price consultation telephone: 0571-86056609!
    • ZDDN-II-A
    • Instrument introduction:

      ZDDN-II-A automatic Kjeldahl tester uses international Kjeldahl method to distill diverse samples of food, feed, food, soil, dairy products, beverages, etc., which can be completed within a few minutes One-button automatic addition of reagents, automatic distillation to separate samples, and automatic termination of distillation.


    • Kjeldahl nitrogen determination instrument Top Yunun ZDDN-II-B Kjeldahl nitrogen determination instrument uses the international Kjeldahl method to distill a variety of samples such as food, feed, food, soil, dairy products, beverages, etc. It can be completed in a few minutes. It can realize one-button automatic addition of reagents, automatic distillation and separation of samples, and automatic termination of distillation. Please contact Top Yunong for the price of Kjeldahl automatic nitrogen analyzer!
    • ZDDN-II-B
    • Instrument introduction:

      ZDDN-II-B type Kjeldahl automatic nitrogen analyzer uses international Kjeldahl method to distill a variety of samples such as food, feed, food, soil, dairy products, beverages, etc., which can be completed within a few minutes, which can be realized One-button automatic addition of reagents, automatic distillation to separate samples, and automatic termination of distillation.


    • Full- automatic Kjeldahl nitrogen analyzer (economic type) TOP Yunnong ZDDN-III-A Full-automatic Kjeldahl nitrogen analyzer (economic type) adopts four independent imported metering pumps, which can efficiently, accurately and automatically add liquid. It is widely used in the analysis of nitrogen content in a variety of samples such as food, feed, food, soil, dairy products, and beverages. Price consultation phone for automatic Kjeldahl nitrogen analyzer: 0571-86056609!
    • ZDDN-III-A
    • Instrument introduction:

      ZDDN-III-A automatic Kjeldahl nitrogen determination instrument (economic type) adopts the international standard Kjeldahl nitrogen determination method and adopts four independent imported metering pumps, which can efficiently, accurately and automatically add liquid. Distillation, separation, condensation, titration calculation, result storage, and printing are integrated. The automatic Kjeldahl nitrogen analyzer is widely used in the analysis of nitrogen content in a variety of samples such as food, feed, food, soil, dairy products, and beverages.


    • Full- automatic Kjeldahl nitrogen analyzer (common type) TOP Yunnong ZDDN-III-B Full-automatic Kjeldahl nitrogen analyzer (common type) can add reagents, distillation, titration, analysis and calculation, result storage, and digestion tube Waste liquid discharge, titration cup waste liquid discharge and cleaning procedures, and has millions of batches of data storage, can be arbitrarily queried and printed. Price consultation phone for automatic Kjeldahl nitrogen analyzer: 0571-86056609!
    • ZDDN-III-B
    • Instrument introduction:

      采用国际标准凯氏定氮法,采用四路独立进口计量泵,可高效、准确、自动加液。 ZDDN-III-B automatic Kjeldahl nitrogen determination instrument (common type) adopts the international standard Kjeldahl nitrogen determination method and adopts four independent imported metering pumps, which can efficiently, accurately and automatically add liquid. Distillation, separation, condensation, titration calculation, result storage, and printing are integrated. The automatic Kjeldahl nitrogen analyzer is widely used in the analysis of nitrogen content in a variety of samples such as food, feed, food, soil, dairy products, and beverages.


    • Full- automatic Kjeldahl nitrogen analyzer (high-end type) Top Yunun ZDDN-III-C Full-automatic Kjeldahl nitrogen analyzer (high-end type) adopts the international standard Kjeldahl method and uses four independent imported metering pumps, which can efficiently Accurate and automatic dosing. Price consultation telephone of automatic Kjeldahl nitrogen analyzer: 0571-86056609!
    • ZDDN-III-C
    • Instrument introduction:

      ZDDN-III-C automatic Kjeldahl determination instrument (high-end type) adopts the international standard Kjeldahl determination method and adopts four independent imported metering pumps, which can efficiently, accurately and automatically add liquid. Distillation, separation, condensation, titration calculation, result storage, and printing are integrated. The automatic Kjeldahl nitrogen analyzer is widely used in the analysis of nitrogen content in a variety of samples such as food, feed, food, soil, dairy products, and beverages.


    • KDN-08C protein analyzer is also called crude protein analyzer, nitrogen phosphorus phosphate analyzer, this instrument uses tap water source, including 8-well digital display digestion furnace, mainly used for measuring seeds, grain, food, dairy products, Nitrogen content in beverages, feed, soil and other agricultural and sideline products. Please contact us for protein analyzer price!
    • KDN-08C
    • Instrument introduction:

      Protein analyzers are also known as crude protein analyzers , nitrogen , phosphorus and calcium analyzers . This instrument is a necessary inspection equipment for QS and HACCP certification of food factories and drinking water factories.

      working principle:
      The protein analyzer (commonly known as the nitrogen determination instrument) is designed and manufactured based on the international Kjeldahl method. The main body of the instrument uses a steam automatic control generator. With the cooperation of a liquid level regulator, the steam is made in tens of seconds. Stable output in time for use by the still. The lye under the control of the first executive body flows through the distillation tube into the quantitative digestion tube, so that the ammonia fixed in the acid liquid volatilizes under alkaline conditions. The steam under the control of the second executive body distills the sample under alkaline conditions to completely volatilize the ammonia. The volatilized ammonia is condensed by the condenser, completely fixed in boric acid, and then titrated to At the end point, calculate the nitrogen content, and then multiply it by the protein conversion factor to get the protein content.

      Model list: (The following standard configuration: still + digester)

      Type

      KDN-04C

      KDN-08C

      KDN-20C

      Functional difference

      Tap water source,

      With 4 holes digital display digestion furnace

      Tap water source,

      With 8-hole digital display digestion furnace

      Tap water source,

      With 20-well digital display digestion furnace


    • KDN-04C Kjeldahl nitrogen determination instrument TOP Yunong KDN-04C Kjeldahl nitrogen determination instrument is based on the principle of constant nitrogen content in protein, by measuring the nitrogen content in the sample to calculate the protein content of the instrument. The instrument uses a tap water source and contains a 4-hole digital display digestion furnace. KDN-04C Kjeldahl nitrogen meter price please call for consultation!
    • KDN-04C
    • KDN-04C Kjeldahl nitrogen determination instrument is based on the principle of constant nitrogen content in protein, by measuring the nitrogen content in the sample to calculate the protein content. Because its protein content measurement and calculation method is called Kjeldahl method, it is called Kjeldahl meter, also known as nitrogen meter, protein analyzer, crude protein analyzer.


      Kjeldahl nitrogen principle:
      Co-heating an organic compound with sulfuric acid converts nitrogen into ammonium sulfate. In this step, potassium sulfate is often added to the mixture to increase the boiling point of the intermediate product. The end of the sample analysis process is easy to judge because the mixture will become colorless and transparent (dark at the beginning)
      A small amount of sodium hydroxide was added to the obtained solution, followed by distillation. This step converts the ammonium salt to ammonia. The total ammonia content (directly determined by the nitrogen content of the sample) is determined by back-titration: the end of the condenser tube is immersed in a boric acid solution. Ammonia reacts with acid, while excess acid uses sodium carbonate as indicated by methyl orange. The result obtained by titration is multiplied by a specific conversion factor.


      Application of Kjeldahl nitrogen analyzer:
      The Kjeldahl tester uses the Kjeldahl method to measure ammonia, protein nitrogen content, phenol, volatile fatty acids, cyanide, sulfur dioxide, ethanol and other contents in grains, food, feed, water, soil, silt, sediment and chemicals . It has a very good price-performance ratio, and only the titration process needs manual operation, which is very suitable for routine testing in laboratories and inspection agencies. It is widely used in the analysis of nitrogen or protein content in food, crops, seeds, soil, fertilizer and other samples.

      Model list: (the following standard configuration: still + digester)

      Type

      KDN-04C

      KDN-08C

      KDN-20C

      Functional difference

      Tap water source,

      With 4 holes digital display digestion furnace

      Tap water source,

      With 8-hole digital display digestion furnace

      Tap water source,

      With 20-well digital display digestion furnace


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