Kjeldahl nitrogen analyzer: instrument for detecting nitrogen/protein content

Kjeldahl nitrogen analyzer is a laboratory instrument for detecting nitrogen content and protein content, and is widely used in food, feed and other fields. But with so many models on the market, how to choose a high-precision, high-efficiency and compliant Kjeldahl nitrogen analyzer?

Detection accuracy and accuracy

Q: What is the error range of the Kjeldahl nitrogen analyzer?

A: The measurement accuracy of the Kjeldahl nitrogen analyzer is a relative difference of ≤1%, a repeatability parallel difference of ≤0.5%, and a recovery rate of up to 99%~100%, ensuring the high accuracy of the test data.

Q: Can it detect nitrogen content as low as 0.1%?

A: The measurement range of the Kjeldahl nitrogen analyzer covers 0.1~240.0mg nitrogen, and even trace nitrogen content can be accurately measured, meeting the testing needs of food, feed and other industries.

Automation and ease of operation

Q: Is it necessary to add reagents manually? Can the distillation process be fully automatic?

A: The Kjeldahl nitrogen analyzer automatically completes the steps of adding alkali, boric acid, diluent, distilled water, etc., and can automatically complete the steps of distillation and absorption, greatly reducing manual intervention and avoiding operational errors.

Kjeldahl nitrogen analyzers are divided into semi-automatic and fully automatic. Semi-automatic Kjeldahl nitrogen analyzers can automatically complete the steps of adding liquid, distillation, and absorption, and titration needs to be done manually; #Fully automatic Kjeldahl nitrogen analyzers can automatically complete the steps of adding liquid, distillation, absorption, titration, emptying, and cleaning. There are two types of titration: static titration and dynamic titration.

Q: Is the touch screen operation complicated? How long does it take for novice training?

A: The Kjeldahl nitrogen analyzer is equipped with Android 10 system and is equipped with touch screen operation. The semi-automatic Kjeldahl nitrogen analyzer is a 7-inch touch screen, and the fully automatic Kjeldahl nitrogen analyzer is a 10-inch touch screen. The interface is intuitive and easy to operate. Novices can operate independently after 1~2 trainings, which greatly reduces the threshold for use.

Sample throughput and detection efficiency 

Q: How many samples can be processed in a single batch? How long does it take to test a sample on average?

A: A single test only takes 3 to 9 minutes, supports continuous sampling, and is equipped with dynamic titration technology (titration while distilling), which effectively improves the detection efficiency. The Kjeldahl nitrogen analyzer has two modes to choose from: automatic and manual. The automatic mode is suitable for daily batch testing, while the manual mode is suitable for fine operation and debugging under special circumstances. Both modes can be selected according to needs.

Data management and security

Q: How to ensure the traceability of test data?

A: The Kjeldahl nitrogen analyzer has a built-in 16G storage capacity, automatic storage of test data (5 million storage capacity), and supports Excel export, U disk copy, batch printing and uploading, supports wifi networking function, and the test results can be directly uploaded to the platform to ensure data traceability.

Q: How to prevent equipment failure from affecting detection?

A: The Kjeldahl nitrogen analyzer has multiple safety protection functions such as water level monitoring, anti-dry burning protection, condensate flow rate monitoring, and condenser temperature detection to ensure long-term stable operation.

The Kjeldahl nitrogen analyzer is one of the key equipment for nitrogen content and protein testing. With its high precision, fully automated process, efficient testing and data traceability functions, it meets the compliance requirements of food, medicine and other fields and provides technical support for laboratory testing.