Precautions for the general classification and purchase of frozen storage tubes

Cryotubes are also called cryotubes and are mainly used for cryogenic transport and storage of biological materials.

Cryotubes are typically used for cryopreservation of laboratory cells. It is commonly used in biological and medical experiments, but it is also used in experiments in other industries such as food.

The classification of cryotubes is not strictly divided. Generally, it is divided according to the capacity of the experiment, such as 0.5ml, 1.0ml, 1.5ml, 1.8ml.
2.0ml, 4ml, 5ml, 7ml, 10ml, etc., can also be divided according to special purposes, the general cryotube can not enter the liquid nitrogen, only special materials can be placed. At the same time, the cryotubes also have double-layered and non-double-layered silicone mats and no silicone mats, as well as colorless and variegated colors and various solid colors. These are all based on experimental needs or experimental convenience. There is no strict division in the design of oneself.
When purchasing, you should see whether the purchased cryotube is suitable according to your own needs. Generally, the cryotube cannot enter the liquid nitrogen. If you need to enter the liquid nitrogen preservation, you must choose a sealed low-temperature special cryotube. Whether the cryotubes purchased by the Qing is sterile, if the experimental requirements are high, it is necessary to purchase sterile and DNA-free, RNA-free tubes. In addition, if it is newly bought, it is not opened outside, it can be used directly. If it is opened outside, it will be high pressure.

At present, there are many kinds of frozen storage tubes on the market. The specifications and materials of frozen storage tubes produced by various manufacturers are different. The price difference is also large, but in general, the imported ones are sometimes more expensive than the domestic ones. This is because foreign countries The materials used in the cryotubes are very good. They are generally used for cryopreservation. In addition, there are many types of products in foreign countries. Generally, they can be made into a series and have various colors for different users to choose. The general quality is guaranteed, and the domestic products are so poor. Some, generally produced is the common use of frozen storage tubes, the variety is not many, the color is relatively simple but the price is relatively low, such as 1.5ml frozen storage tube domestically produced unit price is about 0.2-0.3 yuan, foreign countries generally exceed 1 dollar. Under normal circumstances, the price of all kinds of domestically produced cryotubes is less than one, and the types of imported ones are generally more than one, and some special uses have reached 4-5.

When we purchase frozen storage tubes, we can buy them according to our own conditions. It is not that the quality of imported products is good for both imported and domestically produced. We usually buy domestically produced products that have higher requirements for experimental frozen biomaterials. Domestically produced in a situation that is not high can be fully qualified.

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