903 HCY DNA Blood COLLECTION CARD

In the field of medicine and biological research, sample collection is a key link. In order to ensure the accuracy and reliability of experimental results, scientific sampling methods are particularly important. As a convenient sampling tool, biological sample collection cards are gradually becoming the first choice for laboratory and field testing. This article will introduce the characteristics, usage methods and advantages of biological sample collection cards in detail to help readers better understand this important tool.

The effective use area of ​​FTA 903 blood collection card: 5*5cm 5 circles 10mm, the effective area of ​​blood collection paper is not less than 4.5*2.5 square centimeters.

SIZE:10cmX7cm

Package:200 pcs/box、bags

10 boxes/carton

Manufacturer: HCY Technology

Origin: Shenzhen

Item No.:107033409629

In the field of medical and biological research, sample collection is a key link. In order to ensure the accuracy and reliability of experimental results, scientific sampling methods are particularly important. As a convenient sampling tool, biological sample collection cards are gradually becoming the first choice for laboratory and field testing. This article will introduce the characteristics, usage methods and advantages of biological sample collection cards in detail to help readers better understand this important tool.

1. Structure and composition The biological sample collection card mainly consists of two parts: information card and collection filter paper. The information card is used to record relevant information of the sample, including the name, gender and sampling date of the sampled person. Accurate recording of this information can effectively avoid sample confusion. The collection filter paper is the part that directly contacts the sample. Its special cotton fiber matrix contains chemicals that can automatically lyse after capturing cells to protect the DNA in the sample from degradation and contamination.

2. Sampling principle The key to the biological sample collection card lies in its sampling principle. The special chemicals in the filter paper can bind to the nucleic acid in the cell to maintain the integrity of the DNA. This mechanism effectively prevents the damage of nucleases, oxidants and ultraviolet rays to DNA, while inhibiting the growth of bacteria and microorganisms. This principle allows biological samples to remain stable under different environmental conditions, providing reliable samples for subsequent analysis.

3. Usage method The biological sample collection card is suitable for sampling blood and saliva. The following are the specific steps: Blood sampling: Use alcohol cotton pads to disinfect the blood collection site. Punch the blood collection site with a blood collection needle and drip the peripheral blood into the circle or grid of the collection card. After blood collection, use hemostatic cotton to stop bleeding. The blood at the scene or corpse can be spread on the collection card with a needle, or evenly applied with a cotton swab. The sample needs to be naturally dried in a cool place before preservation. Saliva sampling: Tear open the outer packaging and take out the cotton swab. Hold the sponge head of the cotton swab in your mouth for 3-5 seconds to fully absorb saliva. Press the wet cotton swab into the circle or grid of the collection card. Store the sample after it is dry.

4. Storage requirements In order to ensure the quality of the collection card samples, specific storage requirements must be followed. Biological sample collection cards should be protected from direct sunlight, heat and ultraviolet rays, and from formalin or other organic solvents, liquid contamination and human DNA contamination. The optimal storage humidity range is 30%~50%.

5. Advantages and applications The biggest advantage of biological sample collection cards is their simplicity and efficiency. One sampling can be repeated for multiple times, which is convenient for re-examination and verification. At the same time, the sample information is directly recorded on the cover, which effectively avoids sample confusion. In addition, the anti-seepage and anti-pollution protection design on the inside of the sampling card further improves the stability and accuracy of the sample.