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[Chemical Knowledge]：Scientific and correct liquid nitrogen preservation precautions to ensure experimental quality

Read： 431 Time：8months ago Source：Transform the World with Simplicity

Liquid nitrogen preservation is a common way to preserve laboratory samples, which plays a very important role in protecting the quality of experiments. However, when performing liquid nitrogen preservation, we need to pay attention to some details to ensure that the experimental samples can be well preserved and protected. The following are some scientifically correct precautions for liquid nitrogen preservation for your reference.

ensure that the container is well sealed. In the process of liquid nitrogen preservation, it is very important to choose a container with good sealing performance. Otherwise, the volatilization of liquid nitrogen will lead to moisture, deterioration or failure of the sample. Therefore, it is necessary to choose a liquid nitrogen preservation container with good sealing performance, and strictly follow the method of sealing the container to ensure that the liquid nitrogen will not volatilize.

take care to avoid nitrogen leakage. In the use of liquid nitrogen preservation, we must pay attention to avoid nitrogen leakage. Nitrogen is a harmful gas to the human body, and prolonged exposure may be harmful to health. Therefore, when storing liquid nitrogen, we must pay attention to the sealing of the container to prevent nitrogen from leaking out. The

maintains sufficient liquid nitrogen. The effectiveness of liquid nitrogen preservation is directly related to the adequacy of liquid nitrogen. Therefore, in the preservation of liquid nitrogen, we must pay attention to check the remaining amount of liquid nitrogen, and timely add liquid nitrogen. Adequate liquid nitrogen can ensure that the experimental samples are fully frozen, so as to better protect the quality of the experiment.

pay attention to the liquid nitrogen preservation mark. During liquid nitrogen preservation, the preserved samples must be marked, including the sample name, preservation date, preservation personnel and other information. This is conducive to our tracking and management of experimental samples, and it is also convenient for us to take samples. Therefore, when storing in liquid nitrogen, attention must be paid to marking the stored samples.

To sum up, liquid nitrogen preservation is a very effective way to preserve experimental samples, and scientific and correct liquid nitrogen preservation precautions can ensure experimental quality. Therefore, when storing liquid nitrogen, it is necessary to pay attention to the sealing of the container, avoid nitrogen leakage, maintain sufficient liquid nitrogen, and mark details to ensure that the experimental samples can be well preserved and protected. It is hoped that the above content can provide some useful guidance for scientific research workers.

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