Test method for viscosity of serum separation gel

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Serum separation gel is a widely used biomaterial in biomedical research and clinical applications. Due to its unique physical properties such as accurate density, high viscosity, radiation resistance, and good biocompatibility, it is used to separate plasma and blood cells and is a preprocessing step in many clinical tests and experiments. The quality of serum separation gel is directly related to the accuracy and operability of experimental results, among which viscosity is an important indicator to measure its performance. Below, we will carefully introduce the method of using a rotational viscometer to measure the dynamic viscosity of serum separation gel.

Dynamic viscosity measured by rotary viscometer

1. Instruments and equipment: When testing the viscosity of serum separation gel, we usually use a rotational viscometer. This is a common laboratory instrument that measures the viscosity of colloids by rotating cylinders or spheres.

2. Sample preparation: Before conducting viscosity testing, first prepare a sample of serum separation gel to ensure that the sample is in a uniform state without bubbles or particles.

3. Adjusting the rotary viscometer: According to the instructions for using the instrument, adjust the parameters of the rotary viscometer, including time, speed, etc., to ensure that the instrument is in normal working condition.

4. Measure dynamic viscosity: Place the prepared serum separation gel sample into the testing slot of the viscometer, start the instrument, and rotate it. By measuring the resistance of the colloid to rotation during the rotation process, the dynamic viscosity of the serum separation gel is calculated. To ensure measurement accuracy, each sample should be measured at least three times and the average value should be taken.

5. Recording data: During the testing process, real-time changes in dynamic viscosity can be recorded, and viscosity curves can be obtained through the instrument's display screen or computer software.

6. Analysis results: Based on the obtained data, analyze the viscosity curve and observe the viscosity changes of serum separation gel under different conditions to evaluate its applicability in the experiment.

Result analysis

By using a rotational viscometer to process the measured dynamic viscosity values, the relationship between serum separation gel concentration and viscosity can be obtained. As the serum separation gel concentration increases, its dynamic viscosity value gradually increases, indicating a certain positive correlation between the viscosity of serum separation gel and its concentration.

By comparing the dynamic viscosity values of serum separation gels with different concentrations, we can find that as the concentration increases, the dynamic viscosity values show a significant upward trend. This indicates that high concentrations of serum separation gels have higher viscosity, which is related to their physical properties such as increased molecular weight and enhanced interaction forces.

In addition, by observing the dynamic viscosity values of serum separation gels at different concentrations, its relationship with temperature can also be found. Within a certain range, as the temperature increases, the dynamic viscosity value of serum separation gel will decrease, which may be related to the enhanced thermal motion and weakened interaction forces of serum separation gel molecules under high temperature. Therefore, in practical applications, suitable serum separation gels should be selected according to experimental requirements.

The significance and application of viscosity testing

1. Quality control: By conducting viscosity testing on serum separation gel, effective control of product quality can be achieved, ensuring its stable performance.

2. Process optimization: In production, testing the viscosity of serum separation gel under different batches and conditions can help optimize the production process and improve product consistency.

3. Reliability of experimental results: Knowing the performance of serum separation gel under different viscosity conditions can help researchers design and conduct experiments more accurately, and improve the reliability of experimental results.

By using a rotational viscometer to test the dynamic viscosity of serum separation gel, one can comprehensively understand its performance in laboratory applications, which is of great significance for ensuring experimental accuracy, improving product quality, and optimizing production processes. As a manufacturer of serum separation gel and a professional supplier of blood vessel additives, Desheng integrates research and development, production, and sales. Its specific gravity, viscosity, radiation resistance, and other properties have been repeatedly tested, resulting in high customer praise and high return rates. If you have any relevant intentions, please feel free to click on the website to inquire about our purchase!