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1. Is the sample repeatedly tumbling in the distillation unit, posing a danger to the operator?
The traditional fixed nitrogen device may present potential danger to the experimenter. However, the nitrogen analyzer distiller produced by Zhejiang Top Company will not. It fully considers the safety issues, adds safety gates during design, and ensures the life safety of the experimenters. At the same time, the Kjeldahl titrator violently tumbling because of the large amount of water vapor entering the digestive tube. At this time, the Kjeldahl meter has its own overpressure protection device, which can maintain the internal normal pressure and will not cause any harm to the operators.
2. What are the requirements for adding water to the distillation unit?
The water in the Kjeldahl distillation drum requires distilled water or pure water, and if you do not use the Kjeldahl for a long time, it is best to let the water out of the distiller.
3. How does Kjelting's nitrogen analyzer turn on the water in the distiller?
It is normal to check whether the distilled water tank is leaking in half a minute after being turned on, and it is normal to be filled with gas. Check if the water level in the distilled water tank exceeds one third, which is not enough;
4. When the sample is in the digester, can it heat the digester?
When samples are digested, strong fires cannot be used. If the sugar or fat content of the sample is very high, then we must pay attention to control the temperature, so as not to spray a large amount of foam out of the Kay flask, causing the danger of personnel, and the results of the determination will be affected. The digestion furnace produced by Zhejiang Top Company includes water bath heating and electric heating. The greatest benefit of heating in a water bath is to heat evenly.
5. Does the capacity of the Kjeldahl flask affect the experiment? The most appropriate size Kjeldahl flask can greatly increase the experimental rate.
Generally we choose Kjeldahl flasks of 800 or 1000 ml. Kjeldahl flasks with a large capacity can shorten the ammoniation time and have better heating uniformity and ammoniating efficiency. When adding the sample, try not to adhere the sample to the flask static, so as not to affect the experimental results.
6. When digesting the digester, do we choose to heat the water bath or use a hot plate?
Generally we use water bath heating. The water bath is heated evenly, the temperature rises steadily, and the digestive efficiency is greatly improved, as well as personal safety.
Nitrogen meter precautions
Several issues that need attention: