Introduction and classification of common nitrogen determination instruments in the market

There are many names for the nitrogen determination instrument, and the nitrogen determination instrument is one of the most concise names. According to its measurement method, the nitrogen analyzer can be called a Kjeldahl analyzer; it is also referred to as a protein analyzer or a crude protein analyzer according to its measurement object. In fact, in the market, the name of the nitrogen determination instrument is usually determined by the degree of automation, such as the semi-automatic Kjeldahl nitrogen determination instrument and the automatic Kjeldahl nitrogen determination instrument. Here are the typical nitrogen determinations in these two types of markets. Instrument features and differences.

1. Semi-automatic Kjeldahl apparatus The semi-automatic Kjeldahl apparatus is literally understood to be semi-automatic only, and it cannot be completely automated. It mainly means that only the distillation part contains no titration, and titration requires manual titration of nitrogen. Instrument type. In fact, there are two types of semi-automatic nitrogen determination instruments. The first is a semi-automatic Kjeldahl nitrogen determination device that requires manual addition of alkali, manual addition of water, and manual control of the distillation time. The second is automatic alkali addition, automatic replenishment, and automatic addition. Acid, semi-automatic Kjeldahl nitrogen analyzer without human intervention throughout the distillation process.

2. Automatic Kjeldahl nitrogen determination instrument Kjeldahl nitrogen determination instrument refers to the integrated design of distillation and titration. After the sample is completely digested, the instrument can be automatically added with water, automatically added with alkali, automatic replenishment, automatic acid addition, and automatic titration. Even the type of nitrator that automatically prints the results. The advantage of using this instrument to perform the determination test is that no human intervention is required during the entire experiment process, which greatly reduces the workload of laboratory personnel, improves work efficiency, and results in more accurate test results.

At present, these two kinds of nitrogen determination instruments have a very wide range of applications in the market, but with the advancement of technology and the development of marketization, the cost of automatic Kjeldahl will gradually decrease, making more and more The company or department will actively use the automatic Kjeldahl analyzer, so the future application prospect of the automatic Kjeldahl analyzer can be said to be even broader.

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