Currently, in many industries, the determination of the nitrogen content or protein content of a sample is performed directly using a nitrogen analyzer . Kjeldahl nitrogen analyzer based on Kjeldahl method has many advantages such as fast test speed, high efficiency, good parallel test results and low risk factor, so it is very popular among industry personnel.
Kjeldahl nitrogen analyzer can be mainly divided into semi-automatic nitrogen analyzer and automatic nitrogen analyzer. Gu Mingsi believes that semi-automatic nitrogen analyzer can only achieve semi-automatic measurement, and some operations need manual assistance, and fully automatic nitrogen analyzer. The degree of automation is even higher, and the fully automated measurement analysis of the instrument is truly realized. Here is a detailed description of the difference between semi-automatic nitrogen analyzer and automatic nitrogen analyzer?
1. Semi-automatic nitrogen analyzer
The semi-automatic nitrogen analyzer only has a distillation section that does not contain titration, and titration requires manual titration. Some need to manually add alkali, manually add water, manually control the distillation time, etc. Some can automatically add alkali, automatic water, automatic acid addition, the entire distillation experiment process does not require human intervention, choose semi-automatic nitrogen analyzer, also need to know the instrument function in detail, To ensure that the instrument function matches the measurement needs.
2, automatic nitrogen analyzer
The automatic nitrogen analyzer adopts the integrated design of distillation and titration, which can realize automatic water addition, automatic alkali addition, automatic water supply, automatic acid addition, automatic titration and result calculation printing. In the experiment using the automatic nitrogen analyzer, the whole process does not require human intervention, so it is more convenient and safer to use this instrument.
The above is the difference between the semi-automatic nitrogen analyzer and the automatic nitrogen analyzer. The function of the automatic nitrogen analyzer is more perfect and the degree of automation is higher. After the application, the workload of the laboratory personnel can be greatly reduced, the work efficiency is improved, and the test result is obtained. More accurate. However, the price of this instrument will be higher accordingly, so the choice of which type of nitrogen analyzer should be based on its own needs and experimental requirements.
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