“Sample Preservation Solution: A Capable Assistant in Scientific Research and Medical Testing”

In the fields of modern scientific research and medical testing, sample preservation solution plays a crucial role.

I. Specific Applications

Sample preservation solution is widely used for the preservation of various biological samples. In medical diagnosis, it is used to preserve samples such as blood, urine, sputum, and tissue sections. For example, in the early screening of cancer, some early – stage tumor markers can be detected through blood tests. The sample preservation solution can ensure that the biological components in the blood sample do not deteriorate from the time of collection to the time of testing, ensuring the accuracy of the test results.

In pathological research, the preservation of tissue samples is of great importance. After doctors remove diseased tissues from patients, placing them in sample preservation solution can prevent autolysis and corruption of tissue cells, providing good samples for subsequent pathological section preparation and microscopic observation.

In microbiological research, for microbial samples such as bacteria and viruses collected from the environment or human bodies, sample preservation solution can maintain the activity of microorganisms, facilitating the operations of cultivation, isolation, and identification by researchers.

II. Usage Methods

When using sample preservation solution, first ensure that the tools for sample collection are clean and sterile. For liquid samples, such as blood, immediately inject the blood slowly along the wall of the container into the container containing the sample preservation solution after collection, avoiding generating too many bubbles. For tissue samples, gently place the tissue into the preservation solution with tweezers or other appropriate tools, ensuring that the tissue is completely submerged.

During the mixing process, for some samples that require special treatment, it may be necessary to gently shake the container to make the sample fully contact with the preservation solution, but pay attention that the shaking force should not be too large to avoid damaging the sample.

III. Characteristics

Sample preservation solution has remarkable characteristics. First, it has good biocompatibility and will not damage the biomolecules or cells in the sample. Second, it has strong antibacterial ability, which can inhibit the growth of bacteria, fungi, and other microorganisms and prevent sample contamination. Third, it can maintain the stable physical and chemical properties of the sample, such as stable pH value, ensuring that the sample will not change due to environmental factors during long – term preservation.

IV. Precautions

When using sample preservation solution, pay attention to selecting the appropriate type of preservation solution. Different samples, such as nucleic acid samples and protein samples, may require different – formulated preservation solutions. At the same time, pay attention to the storage conditions of the preservation solution. Generally, it needs to be stored in a low – temperature and light – proof environment to ensure the performance of the preservation solution itself.

During sample collection and placing the sample into the preservation solution, strictly abide by the aseptic operation principle to prevent contamination by external microorganisms. If abnormal phenomena such as turbidity or discoloration of the preservation solution are found, stop using it to avoid affecting the quality of the sample.