Function advantages of automatic nitrogen determination instrument

Function advantages of automatic nitrogen determination instrument

There are many ways to determine protein concentration. As the study progresses, more and more accurate and simple methods will be developed. In addition to the general Kjeldahl nitrogen and lowry methods, there are non-universal methods such as the BCA method, the Bradford method, and the sulfosalicylic acid precipitation method. Among them, the lowry method and the BCA method belong to the same chemical method. That is, the chemical reaction is involved in the test process. The Bradford method is a dye binding method. Coomassie Brilliant Blue G-250 is reddish-brown in acidic solution, and after being combined with the protein, it turns into Blue, the color depth is proportional to the protein concentration. The sulfosalicylic acid precipitation method does not involve a chemical reaction at all, and the entire process is a physical reaction.

Kjeldahl method uses the now popular automatic nitrogen analyzer or semi-automatic nitrogen analyzer. At present, Kjeldahl has a variety of models, such as ZDDN-II automatic determination of nitrogen, KDN-04B semi-automatic nitrogen determination, KDN-08B nitrogen determination and so on. Different models correspond to different specifications and prices. This article focuses on the ZDDN-II automatic nitrogen determination instrument. In combination with all the functions of other nitrogen determination instruments, it also adds some more diversified functions to make the instrument better able to measure the protein content of substances.

ZDDN-II automatic nitrogen determination instrument can measure the content of protein in food, food, beverage, feed, water, medicine, dairy products and so on. Moreover, this type of nitrogen determination instrument is fully automatic, as long as the mode is set at the beginning, once started, all processes are completed in a one-stop manner, eliminating the need for manual addition of solvents and the trouble of watching the process. There are two modes to choose from in the operation mode of the ZDDN-II fully automatic nitrogen determination instrument, namely both automatic and manual modes. In the automatic mode, the four processes of alkali addition, addition of boric acid, distillation, and absorption of ammonia gas are completed in one operation, ie, the automatic mode. The manual mode can also be selected, but sometimes the automatic mode is selected for convenience. ZDDN-II automatic determination instrument uses a large-screen dot-matrix liquid crystal display, touch buttons, making the operation convenient and quick. In addition, the nitrogen determination instrument has automatic distillation control, automatic water addition, automatic water level control, automatic water stoppage, and low water pressure alarm, which makes it completely automatic in the nitrogen determination process because the instrument almost makes it possible to happen. Predict and respond to relevant emergency measures so that you can completely rest assured that its safety protection mode is also quite complete. The digestive tube has a safety gate device to prevent splashing of liquid during the digestion process. The steam generator is equipped with a water shortage alarm device. The steam generator will not be short of water. These are all other types of Kjeldahl analyzers, so the ZDDN-II automatic nitrogen analyzer has no performance advantage over yours.