In the field of protein content determination, the Kjeldahl method has always occupied the core position of classical analytical methods due to its accuracy and universality. As the demand for detection shifts towards high-throughput and automation,DigiPREP TKN SystemsIt is no longer just the hardware configuration of the laboratory, but a key link in ensuring product quality control and optimizing industrial production processes.

1、 Core application: Solution for multi domain protein determination

The application depth of fully automatic Kjeldahl nitrogen analyzer directly determines the accuracy of quality control in related industries. The following are the core application scenarios of this instrument in practical production and scientific research:

1. Food and agricultural product processing: the cornerstone of label authenticity

In the food industry, protein content is the most important indicator for measuring nutritional value. The fully automatic Kjeldahl nitrogen analyzer is widely used for the detection of dairy products (such as milk powder, liquid milk), meat products, and grains. Through this instrument, inspectors can quickly identify adulteration behavior (such as abnormal fluctuations in non protein nitrogen) and provide nutritional information for the product packagingRaw data to ensure compliance with national food safety standards.

2. Feed industry: precise ratio optimization of breeding benefits

The cost of feed accounts for the vast majority of the livestock industry, and crude protein content is the core standard for feed pricing. The fully automatic Kjeldahl nitrogen analyzer can maintain repeatability in large-scale sample testing, helping feed manufacturers accurately calculate the addition ratio of raw materials such as soybean meal and fish meal. This can not only avoid poultry caused by protein deficiencylivestockslowSlow, it can also prevent cost waste and environmental pollution caused by protein excess.

3. Environmental and Soil Analysis: A Barometer for Ecological Monitoring

In the field of environmental science, this instrument is used to determine total Kjeldahl nitrogen (TKN) in soil, sludge, and water samples. By monitoring the distribution and loss of nitrogen elements in farmland, researchers can guide scientific fertilization and reduce groundwater nitrate pollution, which has profound guiding significance for sustainable agriculture and ecological restoration.

4. Pharmaceutical and Biological Products: Precise Monitoring of Technological Processes

In some biopharmaceutical processes, real-time monitoring of nitrogen content in fermentation broth or purified products is required. The fully automatic instrument, with its closed titration system, effectively avoids the loss of volatile ammonia and provides a highly reliable experimental basis for yield analysis in biopharmaceuticals.

2、 Technical application process: from digestion to data output

In practical operation, a fully automatic Kjeldahl nitrogen analyzer is usually used in conjunction with a digestion furnace. Its typical application process includes:

1. Sample digestion: Under the action of sulfuric acid and catalyst, organic nitrogen is converted into inorganic ammonium sulfate.

2. Automatic dosing and distillation: The instrument automatically completes the process of adding water, alkali, and boric acid to the receiving solution, and evaporates ammonia gas through steam.

3. Online titration and calculation: The built-in high-precision color sensor or potentiometric titration system determines the endpoint in real time and directly displays the protein content based on the built-in formula.

3、 Instrument Introduction Guide: Overview of Performance Advantages

As a technical support for the above applications, the core advantage of the fully automatic Kjeldahl nitrogen analyzer lies in its highly integrated automation logic.

• Technical principle: Based on the classic Kjeldahl nitrogen determination method, the digested sample is subjected to alkaline distillation, and then the nitrogen content is determined by acid-base titration.

• Key points of the guide:

• Safety: Modern instruments are equipped with digestive tube in place detection, safety door protection, and cooling water flow monitoring, greatly reducing the risk of operators coming into contact with strong acids and alkalis.

• Efficiency: Compared to traditional manual devices, fully automatic instruments shorten the single sample distillation time to 3-5 minutes, and the titration process is synchronized with distillation.

• Accuracy: The high-precision plunger titration pump (usually with a resolution of up to $0.1/step) ensures extremely low systematic errors even in microanalysis.

summary

DigiPREP TKN SystemsWith its stability, it has evolved from a simple physical and chemical analysis tool to a strategic equipment for various industries to improve production efficiency and ensure product safety.