What is the gel in a serum separator tube

Details:

Serum separation gel is a kind of colorless transparent colloid which can separate serum and blood clot. It is physiologically inert and insoluble in water. There are a lot of hydrogen bonds in its structure. The network structure composed of hydrogen bonds has excellent thixotropic and isolation properties.

Scope of application: it is specially used to manufacture disposable vacuum blood collection vessels and injection blood collection vessels, which are necessary materials for the preparation of high-quality serum and blood samples for preservation, transmission and transfer in clinical examination.

Separation principle: the separation gel has good thixotropy and isolation properties. When the gel and the coagulated blood are centrifuged in the same tube, the hydrogen bond between the gel molecules is broken under the action of centrifugal force, and the gel is converted into a low viscosity fluid. Because its specific gravity is between the blood cell and the serum, the gel gradually accumulates between the serum and the blood clot during centrifugation. When the external centrifugal force disappeared, the intermolecular hydrogen bonds reassociated to form a network structure, and the separation gel became a high viscosity colloid again, forming a dense isolation layer to separate the serum from the blood clot.

Disadvantages: easy to produce bubbles, affect the appearance, different components of the serum gel hydrolysis performance is not the same. At present, polyolefins, polyesters and propenes are the most widely used. Their anti hydrolysis performance is not good, and they are hydrophilic. Long term contact with water will cause changes in pH value, resulting in changes in the original properties of blood, and the test results will be further affected.

Advantages: insoluble in water, with high temperature resistance, low temperature resistance, oxidation resistance, high stability, high transparency.

In addition, it should be noted that immediately after blood collection, the coagulant attached to the tube wall should be fully mixed in the blood; Blood samples can not be centrifuged immediately after collection. Blood samples should be allowed to stand for 30 to 45 minutes and centrifuged after the serum is fully analyzed.

Since the market demand, users have requirements, then the enterprise will be more pursuit! At this time, we have to mention the excellent enterprise - Hubei xindesheng, whose production of separation gum also has the characteristics of anti irradiation. More than ten years, continuous innovation, the pursuit of excellence, can give the majority of users to hand over the most satisfactory papers!