The key indicators for judging the quality of serum separation gel mainly include the following aspects:

 

1. Specific gravity

 

Definition: The specific gravity of serum separation gel should be between that of plasma and red blood cells, which is the key to forming the isolation layer.

 

Scope: Generally speaking, the specific gravity of whole blood is about 1.050-1.060, the specific gravity of red blood cells is about 1.090-1.092, and the specific gravity of plasma is about 1.025-1.030. Therefore, the specific gravity of serum separation gel is usually between 1.0451.065g/cm ³. For example, the anti radiation serum separation gel developed and produced by Desheng Biochemical has a specific gravity of 1.055 ± 0.02, which is within this range.

 

Importance: Proper specific gravity ensures that the serum separation gel can separate serum and blood cells during centrifugation.

 

serum separation gel

 

2. Viscosity

 

Definition: Viscosity is an important indicator for measuring the fluidity of serum separation gel, which has a significant impact on its addition and flowability.

 

Scope: The viscosity of serum separation gel is generally between 100000 and 200000 centipoise

 

Importance: Appropriate viscosity helps the serum separation gel form a stable isolation layer during centrifugation, while also facilitating operation and gel addition.

 

3. Thixotropy

 

Definition: Thixotropy refers to the property that the viscosity of serum separation gel changes when subjected to external forces (such as centrifugal force), and can recover its original viscosity when the external force disappears.

 

Importance: Thixotropy is one of the key characteristics of serum separation gel to form an isolation layer, ensuring effective separation of serum and blood cells during centrifugation.

 

4. Physiological inertia

 

Definition: Physiological inertness refers to the fact that serum separation gel does not affect blood components when in direct contact with blood.

 

Importance: Serum separation gel must have physiological inertness to ensure the integrity of blood samples and the accuracy of test results.

 

5. Radiation resistance performance

 

Definition: Due to the need to ensure sterility in vacuum blood collection tubes, gamma rays are used for irradiation treatment. The anti irradiation performance refers to the fact that the properties of serum separation gel (such as specific gravity, viscosity, thixotropy, etc.) do not undergo significant changes after gamma ray irradiation.

 

Importance: The anti irradiation performance ensures that the serum separation gel remains stable after irradiation, so that its effectiveness is not affected.

 

6. Stability

 

Definition: Stability includes two aspects: first, the physical and chemical stability of serum separation gel after long-term storage; The second is compatibility with other additives in the blood collection tube.

 

Importance: Long term stability ensures that the performance of serum separation gel remains unchanged during storage and use; Compatibility with additives prevents adverse reactions and affects the accuracy of blood test results.

 

Product packaging

 

In summary, these key indicators collectively constitute important criteria for evaluating the quality of serum separation gels. In practical applications, appropriate serum separation gel products should be selected based on one's own needs. Desheng can provide a full range of blood collection tube additive products, including serum separation gel, EDTA dipotassium, blood anticoagulant, blood coagulant and other products. Welcome to the factory for inspection. Desheng's quality can withstand the test of everyone!