What details should be paid attention to in the use of Kjeldahl nitrogen analyzer

What details should be paid attention to during the use of Kjeldahl Nitrogen Analyzer? 1 Does the sample roll repeatedly in the distillation device pose a danger to the operator? The traditional nitrogen analyzer may pose a potential danger to the laboratory personnel However, the distiller of nitrogen determinator produced by Zhejiang top company will not It fully considered the safety problem and added the safety door device in the design to ensure the life safety of the experimenter At the same time, the sharp rolling of the Kjeldahl nitrogen analyzer is due to the large amount of water vapor entering into the digestive tube At this time, the Kjeldahl nitrogen analyzer has its own overpressure protection device, which can maintain the internal atmospheric pressure and will not cause harm to the operators 2 What are the requirements for the water added to the distillation unit? The water in the distillation drum of Kjeldahl nitrogen analyzer is required to be distilled water or pure water, and if Kjeldahl nitrogen analyzer is not used for a long time, Zui should drain the water in the distiller 3 How to solve the problem of no water in the distiller when the Kjeldahl nitrogen analyzer is turned on? It is normal to check whether the distilling bucket leaks and can be inflated by air during half a minute of turning on; check whether the water level in the distilling bucket is more than one third, which is not enough to make up; 4 When the sample is in the digester, can it be heated by strong fire? When the sample is digested, strong fire cannot be used If the sugar or fat content of the sample is very high, we must pay attention to controlling the temperature so as not to cause a large number of bubbles to blow out the Kay flask, causing the danger of the personnel, and the results will also be affected The digester produced by Zhejiang top company has water bath pot heating and electric heating plate heating The main advantage of water bath heating Zui is even heating 5 Will the capacity of Kjeldahl flask affect the experiment? How much capacity is suitable for Zui can greatly improve the experiment speed Generally, we choose 800 or 1000 ml Kjeldahl flask with large capacity, which can shorten the ammoniation time In addition, the heating uniformity and ammoniation efficiency are better When adding the sample, try not to stick the sample on the static flask to avoid affecting the test results 6 When digesting the sample in the digester, do we choose water bath or electric heating plate? Generally, we use water bath to heat The water bath is evenly heated and the temperature rises steadily The Kai type nitrogen determinator greatly improves the digestion efficiency and personal safety