The chemical name of the biological buffer HEPES product is: 4-hydroxyethylpiperazine ethanesulfonic acid, a white crystalline powder. It is a weak acid and a zwitterionic buffer in organic chemicals. The decomposition ability of the substance can increase with the increase of temperature, and decrease with the decrease of temperature. However, compared with other buffers, its decomposition constant does not change much with temperature. This makes HEPES buffers more effective at low temperatures. A buffer to keep the structure and function of the enzyme well. It is widely used in many fields such as clinical laboratory diagnostic reagents, life science research, pharmacy and biotechnology.
1) The research of biological buffer HEPES on promoting the stability of foot-and-mouth disease antigen.
Foot-and-mouth disease antigen is easily degraded during storage and vaccine preparation, which affects the vaccine effect. The degradation rate of the foot-and-mouth disease antigen is related to the stability of the pH value of the maintenance solution. The preparation of a maintenance solution with strong pH stability can improve the quality of the foot-and-mouth disease vaccine.
2) Preparation of a skin care product containing a biological buffer, which contains a microbial fermentation product extract, which is characterized in that it also contains a biological buffer with a mass percentage of 0.1%-3.0%. Advantages: The pH value of the product has a small drift range. Within three years after the preparation of the skin care product, the pH value can be stabilized at 6.0-8.0, which has a good protection for the microbial fermentation product extract added therein, and the microbial fermentation product extract is not Easily hydrolyzed, the anti-aging effect of the product lasts for a long time.
3) Prepare a neuron-specific enolase content detection kit, which belongs to the field of human neuron-specific enolase content detection.
This detection kit has high sensitivity and a wide detection linear range, and has the advantages of simple operation, rapidity, strong specificity, good stability and high sensitivity.
In addition to HEPES, the biological buffers produced by Desheng include Tris, Bicine, Caps, Mops, Taps, EPPS, etc.; they are mainly used in biochemical diagnostic kits, DNA/RNA extraction kits and PCR diagnostic kits. Customers in need can provide samples.
For in vitro qualitative detect of Covid-19 antigen in nasal(NS) swab specimens directly from individuals who are suspected of COVID-19 by their healthcare provider within the first 5 days of the onset of the symptoms. This test is only provided for use by clinical laboratories or to healthcare workers for point-of-care testing, and not for at home testing. 1.Easy to collect samples simple operation without professional equipment. 2.The test results are available in 15 minutes, and the test results are clearly visible. 3.Convenient transportation and low price, higher accuracy. 4.Suitable for large-scale rapid screening. Shelf life: 24 Months Test Result time: 10 Mins Packing: 25 Pieces per Box
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Covid-19 Diagnostic Kit(Made in Korea) PCR running Time : 30m
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