Function of the serial separation gel

Details:

Serum separation gel is a colorless transparent colloid that can separate serum and blood clots. It is physiologically inert and insoluble in water. The structure contains a large number of hydrogen bonds. It is a network structure composed of hydrogen bonds, which 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. It is an essential material for the preservation, transmission and transfer of high-quality serum and blood samples in clinical testing.

Separation principle: the separation glue has good thixotropic performance and isolation performance. When the separation gel and coagulated blood are centrifuged in the same test tube, under the action of centrifugal force, the hydrogen bond between the molecules of the separation gel is broken and transformed into a low viscosity fluid. Because its specific gravity is between blood cells and serum, the separation gel will gradually accumulate between serum and blood clots during centrifugation. When the external centrifugal force disappears, the hydrogen bonds between molecules re associate to form a network structure, and the separation gel becomes a high viscosity colloid again, forming a dense isolation layer to separate the serum and blood clot.

Disadvantages: it is easy to produce bubbles and affect the appearance, and the hydrolysis performance of serum separation gel with different components is also different. Moreover, polyolefin, polyester and propylene are the most used at present, and their hydrolysis resistance is not good. 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, it has the characteristics of high temperature resistance, low temperature resistance, oxidation resistance, high stability and high transparency.

In addition, it should be noted that after blood collection, it should be reversed and mixed for 5-8 times immediately, so that the coagulant attached to the pipe wall can be fully mixed in the blood; Blood samples cannot be centrifuged immediately after collection. It is necessary to let the blood samples stand for 30 to 45 minutes, and then centrifuged after the serum is filled and analyzed.

Since the market has demand and users have requirements, enterprises will pursue more! At this time, we have to mention the excellent enterprise - Hubei xindesheng, whose separation glue also has the characteristics of radiation resistance. For more than ten years, we will continue to explore and innovate and pursue excellence in order to hand over the most satisfactory test paper to the majority of users!