China Wuhan Desheng Biochemical Technology Co., Ltd Company News

Bicine, N, n-di (hydroxyethyl) glycine, CAS 150-25-4, is a white crystalline powder. Soluble in water, insoluble in acet one, DMAC, DMSO, DMF and other organic solvents.   Bicine buffer is a pH buffer suitable for biochemical and medical research. In the range of pH 7.6 ~ 9.0, the pKa value is 8.3 at 25 ℃. This property makes bicine often used as a buffer solution for capillary electrophoresis. It is also the recommended buffer for low temperature biochemical work. Its molecular structure is similar to glycine. Buffer is recommended in low temperature biochemical work of biological buffer. It was used to prepare stable substrate solution for the determination of serum guaninase. It is also a widely used buffer for enzyme reaction buffer and electrophoresis buffer. The working concentration is 3-100ml   Product packaging   [recommended usage]   1. Preparation of storage solution for cell culture related experiments: dissolve according to the solubility in the table. If it is used for cell experiment, please prepare the liquid and filter it with 0.22um before adding cells.   2. Preservation of storage liquid: it is recommended to prepare and use the liquid now, and the liquid is not very stable; it can also be packed into a single dosage, which is stable for 2 years. Avoid repeated freezing and thawing.   Since 2005, Desheng technology has been specialized in R & D and production of separation gel, heparin, EDTA potassium salt and other blood collection additives, as well as in vitro diagnostic reagents. It has made deep research on new Trinder's reagents such as chromogenic substrates Mao and toos, biological buffers such as Tris and bicine, and chemiluminescence reagents such as luminol and acridine ester. Our company has a professional independent R & D team and has great potential in synthesis Professional advantages, product quality and technology, at home and abroad has been widely recognized and used by customers. The purity of bicine produced by Desheng technology is more than 99%, with good water solubility and stable process, which can ensure the appearance of pure white crystal powder.

Biological buffers caps are widely used in biochemical diagnostic kits, DNA / RNA extraction kits and PCR diagnostic kits, as well as in enzyme chemistry and HPLC separation of alkaline drugs. Caps buffer also has many applications in industry, such as new coatings and new materials. Caps is also a raw material for manufacturing welding materials, air conditioning equipment and lithium metal. In the face of caps with such a wide range of applications, there are certainly many manufacturers. We should pay attention to the following problems when selecting manufacturers.   Hubei xindesheng Material Technology Co., Ltd. is located in Gedian Development Zone, Ezhou City, Hubei Province. It has 14 years of R & D and production experience in the field of biochemical industry. It mainly produces in vitro diagnostic reagents such as biological buffer, blood sampling additive and chemiluminescence substrate. The company has passed the ISO-9001 quality management system certification , has a good reputation in the industry, is a reliable biochemical raw material production enterprises.     2. Caps needs better purity when it is used as biological buffer. Generally, it needs analytical purity. When it is used in industry, the purity requirement is relatively low, but it also needs different treatment for different applications. All the biological buffers produced and developed by Desheng are of analytical purity, caps, Tris, bicine, mops and other purity ≥ 99%, and the process is stable, which is your reliable choice.   3. If you are purchasing new coating materials, you need to understand the advantages of caps from different manufacturers in the application of coatings. Compared with other manufacturers, Desheng caps has obvious advantages in the application of new coatings. It completely surpasses other manufacturers in the aspects of dryness, curing and chemical resistance. It can be used in various environmentally friendly high-quality waterborne, two-component polyurethane coating formulations, and can be used with The new regulations require further reduction of VOC (volatile organic compounds) content in decoration materials, which greatly increases the amount of these crosslinking agents. Compared with general solvent based coatings, caps produced by Desheng will not have the problem of film quality degradation.   Desheng chemical has rich experience in the production and research of caps and other biological buffers. Caps is not only widely praised in the field of biochemical diagnosis, but also widely used in the new coating market. Desheng is rising step by step with the rapid development of the medical industry!

Carbomer 940 is widely used in all kinds of daily chemical products due to its excellent thickening, suspension and stability. It is also found in our daily products such as bath gel, cream and skin care products. Carbomer 940, because of its important application in hand free disinfectant gel, has caught fire during the epidemic. As more and more businesses invest in the research and development of carbomer 940, purchasers take a look. Is there a better carbomer 940 supplier recommendation?   The answer is yes. After repeatedly comparing the products of different manufacturers, it is found that the carbomer 940 produced by Desheng is very worthy of recommendation. The reasons are as follows.   carbomer gel   1. Desheng has a group of powerful R & D and production teams   Desheng technology, founded in 2015, is located in Ezhou City, the famous "city of hundreds of lakes" and "land of fish and rice". The company has a group of high-quality production personnel, strong development ability technical team and ability to deal with and solve various complex technical problems. It has always been famous for its good business reputation.   2. Desheng is the direct manufacturer of carbomer 940   Although there are many manufacturers of carbomer 940 in China, some of them are not good in quality. They just think that it is the trend of the times, and they have not invested in human, material and financial resources. Desheng has its own professional R & D team and production base, so it doesn't have to worry about product quality problems at all. Even if there are problems in use, it can return goods without worry. Only the manufacturer can give such a service commitment .   3. Preferential price of carbomer 940 provided by Desheng   You must have repeatedly compared the price when you are looking for the supplier of carbomer 940. Finally, you will find that Desheng is the manufacturer who really takes action. Desheng clearly tells you that the manufacturer has direct sales, sufficient stock, and can enjoy the price of 100 yuan / kg for tons or above. Many customers can't believe it when they see these words. Desheng hereby declares that this activity is real and effective, and the activity is not complete The deadline is November 26, 2020. If you miss this wave of discounts, there will be no next time.   4. Desheng cabom 940 has high daily output and can deliver goods quickly   Desheng has a specialized production base with imported production equipment, with a daily output of 3-5 tons, To meet the needs of large quantities of customers, no matter what the customers want is kilogram or ton goods, Desheng has the ability to deliver goods quickly. As many as 100 + customers cooperate with Desheng. They are sold at home and abroad and have rich export experience. Customers no longer have to worry about the delivery cycle.

There are many kinds of additives for blood collection, such as anticoagulants, accelerators, separation gels, etc. In order to distinguish the use of different blood collecting vessels and additives, different cap colors are used internationally to mark blood collecting vessels. The functions of different color caps are different, some added anticoagulants, some added accelerators, and some blood collecting vessels without any additives. What is the role of different additives in blood collection? Desheng, as an old manufacturer of vascular additive, can help you solve your doubts.   Red head: no additives, common serum tube for routine biochemical and immunological tests.   Orange red head cap: coagulant, can activate fibrin, make soluble fibrin into insoluble fibrin polymer, and then form a stable fibrin clot. The rapid serum tube can coagulate the collected blood in 5 minutes, which is suitable for emergency series tests.   Golden head cover: separation gel and accelerator. After centrifugation, the separation gel can completely separate the liquid components (serum or plasma) and solid components (red blood cells, white blood cells, platelets, fibrin, etc.) in the blood, and completely accumulate in the center of the test tube to form a barrier. The sample remains stable within 48 hours. Coagulant can quickly activate the coagulation mechanism and accelerate the coagulation process, which is suitable for emergency series tests.   Green head cover: heparin, suitable for hemorheology, erythrocyte fragility test, blood gas analysis, hematocrit test, general biochemical determination. Heparin has the function of antithrombin and can prolong the clotting time of samples, so it is not suitable for hemagglutination test. Excessive heparin can cause leukocyte aggregation and cannot be used for leukocyte count. Because it can make the background of blood stained light blue, it is not suitable for morphological examination. Light green head cover: separation gel and heparin lithium can achieve the purpose of rapid separation of plasma. It is the best choice for electrolyte detection. It can also be used for routine plasma biochemical detection and emergency plasma biochemical detection in ICU.   Purple head cover: EDTA anticoagulant, the anticoagulant is ethylenediamine tetraacetic acid (EDTA), which can combine with calcium ion in blood to form chelate, and make Ca2 + lose coagulation, so as to prevent blood coagulation. It is suitable for many kinds of hematological examination. However, EDTA can affect platelet aggregation and is not suitable for coagulation test, platelet function test, calcium ion, potassium ion, sodium ion, iron ion, alkaline phosphatase, creatine kinase and PCR test.   Light blue head: sodium citrate anticoagulant, sodium citrate mainly through chelating with calcium ions in blood samples and anticoagulant effect, suitable for coagulation test.   Black head cover: sodium citrate ESR test tube, the concentration of sodium citrate required for ESR test is 3.2% (equivalent to 0.109 mol / L), and the ratio of anticoagulant to blood is 1 ∶ 4.   Gray head cover: potassium oxalate / sodium fluoride. Sodium fluoride is a weak anticoagulant. It is usually used in combination with potassium oxalate or sodium ethyliodate. The ratio is 1 part of sodium fluoride and 3 parts of potassium oxalate. It can not be used in the determination of urea by Urease method, nor in the determination of alkaline phosphatase and amylase. It is recommended to be used in the determination of blood glucose.   What we should pay attention to after blood collection: A. After the injection of blood, pay attention to shake well, the force should be moderate to prevent hemolysis. B. The amount of blood injected should be strictly in accordance with the volume marked on the test tube. C. The blood from different color tubes should not be poured into other color tubes, otherwise it will lead to wrong results. D. The needle should not contact the wall of the test tube to avoid contact with anticoagulant, resulting in wrong results.

As we all know, Carbomer belongs to acrylic resin. As a kind of high-quality thickener raw material for cosmetics, it has the remarkable characteristics of thickening, suspension, emulsification and pseudothixotropy. According to the customer's search needs, Carbomer 940 and carbomer 2020 are the most popular thickeners. Desheng technology, as a professional manufacturer of carbomer series products, has a professional R & D team and mature production technology. The following is a brief summary of the differences in performance characteristics between carbomer 940 and carbomer 2020.   Carbopol raw material   First of all, let's understand some common features of Carbopol resin   1. Swelling: Kaposi resin is hydrophilic in acidic form and easy to swell in water and polar organic solvents.   2. Weak acidity: Kaposi resin is an acrylic polymer containing polyether crosslinking. Because of 56% - 68% carboxylic acid group in the molecule, these resins are weakly acidic. Although they are weaker than acetic acid, they are easy to react with inorganic bases and organic bases to form salts.   3. Functions and uses: Carbopol resin can be used as excellent suspending agent, stabilizer, emulsifier, transparent matrix of high-grade cosmetics and pharmaceutical excipient matrix, and is also the most effective water-soluble thickener.   Performance characteristics of carbomer 2020:   Carbomer 2020 is an easily wettable hydrophobically modified acrylic (ester) cross-linked polymer. As a water-soluble rheological modifier, it not only has the functions of thickening and suspension, but also has a short wetting time in water, which is better than carbomer 940 and more convenient to use. In addition, it has excellent salt resistance and is compatible with surfactants It can be used in the formula containing electrolyte, but carbomer 940 is not ion resistant and cannot exist in the strong electrolyte system. Applications: skin care emulsion, cream, alcohol based transparent gel products, transparent skin care gel, hair styling gel, shampoo, shower gel.   Features of the carbomer 940:   Carbomer 940 is a white loose powder with strong hygroscopicity. The pH of 1% aqueous dispersion is 2.5-3.0. Gel can be neutralized by alkaline substances.   After carboxy group is ionized by carbomer neutralization, the molecular chain is dispersed and extended due to mutual repulsion of negative charges, showing a state of great expansion and viscosity. The effective thickening range of the hydrogel system is within PH5-10. Application: Carbopol 940 can be used as excellent suspending agent, stabilizer and emulsifier. Carbopol resin can be used as transparent matrix of high-grade cosmetics and pharmaceutical excipient matrix. Carbopol resin is also the most effective water-soluble thickener.   In cosmetic gel, water must be soaked or taken for a long time, because carbomer 940 has a swelling process with water, and the time is too short to dissolve the ball. Secondly, we need to see if other components in the system contain electrolytes. Many natural plant components basically have electrolytes, such as flower water, extract, plant extract and so on. When there is electrolyte, it is necessary to select ion resistant thickener carbomer 2020; if there is no electrolyte problem in the system, Carbomer 940 can be selected.   Carbomer gel   Therefore, in the cosmetic configuration, Carbomer 940 and carbomer 2020 are widely used as thickening agents. General cream (no strong electrolyte) is mainly used in carbomer 940, while carbomer 2020 is mainly used in skin care emulsion, cream, alcoholic transparent gel products, transparent skin care gel, hair styling gel, shampoo and Shower Gel.   Desheng technology is a professional manufacturer of carbomer, with advanced production equipment and mature production technology, with an average daily output of tons. The carbomer powder produced by the company is whiter and more fluffy than that on the market, with better transparency after dissolution. According to the customer response, the effect of product use is good, can support free application sample trial, welcome to inquire and order!

  Tris(hydroxymethyl)aminomethane is also abbreviated as tris base, CAS77-86-1, alias tromethamine, ammonium tromethamine, trimethylaminomethane, is a commonly used biological buffer, conventionally produced as white crystalline powder, PH value Weak base, the buffer range is between 7.0-9.2.   Application of Tris in activated carbon   Modern people pay more and more attention to the quality of life, but many living environments and office environments have more or less harmful gases such as formaldehyde and benzene. The use of activated carbon has become the choice of many people, using activated carbon to adsorb these harmful gases. Among them, tris is used as modifier, and then through hydrothermal reaction, the denatured activated carbon is better used in life.   Preparation method of Tris in activated carbon   What is introduced here is the method of adsorbing trace sulfur dioxide by modified activated carbon fiber, which belongs to gas adsorption and separation technology. Using tris, serine, alanine, etc. as the basis to make modifiers to treat viscose activated carbon fibers, through hydrothermal reaction under fixed conditions, to prepare chemically modified activated carbon fibers with a large number of amino groups on the surface.   Preparation by this method has the following advantages: (1) Small molecules are used to ensure the modification of the modifier surface, and the high ratio of activated carbon fiber is maintained, so that the porous structure in the activated carbon will not be destroyed, thereby better adsorption The harmful substances in the air increase the amount of adsorption; (2) This method is relatively mild, has less pollution, is easy to scale up production and guarantees the environment to a certain extent; (3) Use tris (hydroxymethyl) aminomethane and other chemical reagents to modify After modified activated carbon, its adsorption capacity can be increased to 40-60mgSO2/g adsorbent, which is 4-6 times higher than before modification.   Desheng tris meets the requirements for activated carbon modification   In fact, the number of tris manufacturers on the market is decreasing, not only because of the relatively serious safety accidents in 2019, but also because of the emphasis on the environment, many manufacturers actually cannot meet certain requirements. Desheng Biochemical has been testing tris since 2012. It has a professional R&D team, and has accumulated experience in continuous experiments. According to market requirements, it has invested in pilot and large-scale trials, and it has the current large-scale production. The amino methane products are adapted to various needs, and there is no problem with modified activated carbon. Special indicators can also be customized! The quality of a manufacturer can be seen from the receipt of the goods, Desheng welcomes your consultation!      

Carbomer is a high molecular polymer crosslinked by acrylic acid and allyl sucrose or allyl pentaerythritol. It was first produced by g00drich company of the United States, and its trade name is carbomer. Chinese Pharmacopoeia 2005 edition has been included. This product is a loose white powder, with acidity, hygroscopicity and special odor. It is soluble in water, ethanol and glycerin.   The advantages of carbomer are good gel, sticky, thickening, emulsifying, suspending and film-forming properties. The chemical properties are stable, safe, non irritating and hypersensitive. They are very compressible under low pressure and are compatible with most other excipients.   It can increase the bioavailability and show a good correlation in vitro and in vivo. The drug preparation with zero order release rate can be made. It can form soluble gel type internal salt with basic drugs, so that the drug can release slowly. Salt electrolytes can reduce the viscosity of carbomer gel. Alkaline earth metal ions and polymers can be combined to form insoluble salts. Strong acids can also cause carbomer to lose viscosity, and must be avoided in compatibility.   Disadvantages: 1, hygroscopicity, easy to caking, storage should pay attention to moisture. 2. Carbomer dry powder and high concentration mucilage are irritating to eyes, nose and throat. After contact, it can be rinsed with physiological sodium chloride solution. 3. Non solid state has no antibacterial effect, but does not support the growth of bacteria, so preservatives should be added.   carbomer gel   Because of its advantages, Carbomer is widely used, but it also has disadvantages, among which group formation is the problem that most customers respond to. Many manufacturers will encounter various problems when using Carbomer, because carbomer has strong hydrophilicity. Carbomer of dry powder has strong hygroscopicity. Like other hygroscopic powders, it is easy to form clusters or incomplete wetting when it is put into water or other polar solvents by improper methods.   Other powders will eventually decrease and dissolve after agglomerating, but carbomer will not dissolve easily after agglomerating, because once the outer layer of the agglomerate is completely infiltrated, water is not easy to penetrate into the internal dry part, and finally agglomerate.   Desheng, as a professional manufacturer of cabom, according to the experience of engineers in the technical department, sorts out several methods here for reference. 1. Sprinkle carbomer on the water (Note: carbomer sprinkles on the water, not carbomer adds water), and keep it still for one night to make it fully dissolve and swell; 2. Grind carbomer and glycerin (or propylene glycol, according to the prescription) in mortar, and then add water to grind evenly; 3. Add a certain amount of water into the mixer, slowly add carbomer under rapid stirring, and continue stirring for 1-2 hours after adding to make it fully dissolve;   Desheng friendly reminder:   1. If it is a laboratory test, it is recommended to use 2 and 3 methods;   2. If it is a pilot plant or production, it is more appropriate to use methods 1 and 3. If method 1 is used, there may be jelly like lumps, but it is not a big problem: after a colloid mill, a very uniform colloid can be obtained. After the colloid mill, there may be more bubbles, which can be eliminated by vacuumizing and placing overnight;   3, the above method is only to get carbomer colloid. To get gel matrix, we must adjust PH to 6-10 by triethanolamine or sodium hydroxide solution. The resin particles must be evenly dispersed in cold water. Under the high speed of 500-800rpm, the carbomer can be sieved into the stirring vortex by screen. The optional dispersion equipment can be ejector, flocculation disperser and conventional disperser.   The methods explained above are purely personal experience. The Carbomer manufacturing equipment used by each company is different, and the methods vary from person to person. If you know other good ways to avoid kapom forming a group, you are also welcome to leave a message for Desheng to learn together. Kapom has many different models. Desheng's current sales volume and feedback are Carbomer 980 and Carbomer 940, which are available from stock. Welcome to contact us Inquiry and order!

Situation Analysis of Tris   In the past few years, the development speed of tris base (tris(hydroxymethylaminomethane)) CAS77-86-1 is very fast and has achieved visible growth. This is not only the case in China, but also in North America, Europe, the Middle East, Africa and other regions. Large companies in many countries directly use mergers and acquisitions to promote the growth of the entire market.   The relatively large manufacturers of tris hydroxymethylaminomethane have certain plans for market liquidity and future development. Along with different influencing factors, all will be directly related to the market of tris. More new tris production capacity will also get new opportunities.   Factors affecting tris   TRIS (Tris(hydroxymethylaminomethane)) (CAS 77-86-1) market growth drivers, constraints, future opportunities and challenges. The use of tris in biological buffers is more and more widely used, and there are no alternative biological buffers, making the use of tris indispensable.   The limiting factor lies in the timely supply of raw materials. Compared with domestic considerations of environment and safety, more foreign sources are the timely supply of various raw materials. The future development of tris will be more rapid, but it will benefit from good manufacturers and good product quality.   The Challenge of Tris   Facing the demand for a large amount of tris, the manufacturers of tris is more need to consider how to produce the product more efficiently and ensure product quality. Large-scale production of TRIS (Tris(hydroxymethyl)aminomethane) (CAS 77-86-1) will be a better way to reduce costs, and improving the production process is also an issue. Although the competition is fierce, benign stimulation is necessary.   The impact of the new crown epidemic on the TRIS (Tris(hydroxymethyl)aminomethane) (CAS 77-86-1) market The impact of the COVID-19 epidemic on the tris is undoubtedly huge. It brought the global economy into a deadlock suddenly and caused a catastrophic disaster. However, there are also new opportunities in the tris. The newly developed virus preservation solution often requires the tris for debugging. Compared with other products, tris has shown some growth.   Global TRIS (Tris(hydroxymethyl)aminomethane) (CAS 77-86-1) market   North America (U.S., Canada, Mexico) Europe (Germany, United Kingdom, France, Italy, Russia, Spain and the rest of Europe) Asia Pacific (China, Japan, India, Russia and other Asia Pacific regions) Latin America (Cuba, Brazil, Argentina and The rest of Latin America) the Middle East and Africa (South Africa, the Gulf Cooperation Council, and the rest of the Middle East and Africa).   As a professional manufacturer of tris (tris (tris(hydroxymethylaminomethane)) CAS77-86-1, Desheng Biochemical not only maintains the quality of the products, but also pays attention to the timely supply of products. Friends in need can contact Desheng!

The 2019 new crown pneumonia (COVID-19) is affecting the entire global market. In addition to the cost of human life, the impact of the spread of the virus on the global economy has begun to be recognized and has a profound impact on the world's technology supply chain. Measures such as large-scale quarantine, travel restrictions, and social isolation have led to a sharp drop in personal and corporate spending. Companies lose income, lay off employees, and unemployment has risen sharply. Carbomer was once the darling of daily chemical products due to its application as a hand sanitizing gel. It is precisely because of the surge in market demand that carbomer was out of stock for a time.   Facing this severe situation, Desheng looked for opportunities in adversity, established a technology research and development center, increased investment in research and development, and received a good market feedback. There are currently hundreds of cooperative enterprises, so why Carbomer With so many manufacturers, does the customer prefer AdSung? Here are the following points.     1. Is a real manufacturer, not a trader It is also necessary to understand the supply background. Although there are some domestic manufacturers that produce carbomers, some of them are not of good quality, and some are not specialized in producing this product. Perhaps because they think it is the general trend, they did not spend too much. Human, material and financial resources to develop and produce, if the inventory is not enough, this will also bring a lot of inconvenience to subsequent cooperation, and the real manufacturer will not worry about this problem, for example, Desheng has its own professional R&D team. There is no need to worry about the quality of the product at all, and if there is a problem, you can return it without worry.   2. Product trial available If the product is good or not, you can tell when you try a sample. Nowadays, when looking for a product, some purchasers usually communicate in words first, and then communicate by phone when they think it’s suitable. This is actually low efficiency. More importantly, some customers don’t pay attention to the performance parameters of the product at all. Ask the price, if the price is right, if you don’t want to buy it, then you don’t need to talk about it. At this time, it is a very good experience to provide samples for trial. Customers will no longer struggle with the price. If the trial is good, they will naturally "visit" again, and they will naturally choose another home if they are not used well. . Desheng has done statistics, as long as the customers who have tried the product have 100% repurchased,   3. High daily output and fast delivery Many customers’ order quantity is very large. If Carbomer’s inventory is not enough, it will inevitably lose many important customers. Desheng has a professional production base and uses imported production equipment. The daily output can reach 3-5 tons. Satisfy customers' large-volume ordering needs, with good thickening performance, high transparency, and high cost-effectiveness. Customers no longer have to worry about the delivery cycle, because Desheng has the ability to deliver quickly.   During the epidemic, many companies closed down or fired their employees due to business stagnation. This phenomenon has never happened in Desheng. As a professional carbomer manufacturer, Desheng can provide high-quality products and services compared to other manufacturers. More cost-effective, the price is as low as 130 yuan/kg for ton and above. With the public efforts of all employees of the company, our carbomer sales continue to rise, and our products have been unanimously recognized by customers. At present, we mainly sell carbomers There are two models of 940 Carbomer 980, with business in more than 30 countries.

There are many different colors for disposable vacuum blood collection vessels. Different colors of the head cover indicate that the anticoagulant or accelerator added in the blood collection vessels are different, so the corresponding functional application is also different. Different colors of the head cover and labels can also strengthen the identification to prevent the wrong use of blood vessels.   1、 Coagulation promoting tube with golden safety head cover   Inert separation gel and accelerator were added into the blood collection vessel. After centrifugation of blood samples, the inert separation gel can completely separate the liquid components (serum or plasma) and solid components (red blood cells, white blood cells, platelets, fibrin, etc.) in the blood, and completely accumulate in the center of the test tube to form a barrier. The samples remain stable within 48 hours. Coagulant can quickly activate coagulation mechanism and accelerate coagulation process, which is suitable for emergency serum biochemical test.     Different anticoagulants and accelerators for blood collection   2、 Purple safety head cover, EDTA anticoagulant tube   EDTA tube is used for blood routine test of blood examination. EDTA chelates with calcium ion in blood to inhibit coagulation process. It is suitable for general hematology test, not for coagulation test and platelet function test, nor for determination of calcium ion, potassium ion, sodium ion, iron ion, alkaline phosphatase, creatine kinase and leucine aminopeptidase, and PCR test; it has the least effect on red blood cell morphology, and can inhibit platelet aggregation. The spray method is usually used to make the reagent uniformly attached to the tube wall, so that the blood sample can be quickly and fully mixed after sampling.   3、 Green safety head cover, heparin anticoagulant tube   Heparin sodium or heparin lithium can prolong the initial clotting time. Heparin anticoagulant tube is suitable for red blood cell fragility test, blood gas analysis, hematocrit test, erythrocyte sedimentation rate and biochemical determination. It is not suitable for hemagglutination test. It has less interference to blood components, does not affect the volume of red blood cells, and does not cause hemolysis.   In addition to the above three kinds of blood collection vessels, the common ones are the red head cap tube without additives, the blue head cap sodium citrate anticoagulant tube, and the black head cap blood sedimentation tube. According to the sales situation of Desheng's blood collection vessel additives, the above three kinds of blood collection vessels are the most widely used.

Chroma TOOS:   TOOS has a higher molar absorbance of the color product, which means that the sensitivity of the color reaction is higher, and it can be used for the determination of very small amounts of test items in the serum. The absorbance of the color reaction product formed by TOOS does not change much with time, that is, the color reaction product is stable and not easy to fade.   Precautions for using TOOS   TOOS is reducible. Although peroxidase is needed for detection, the enzyme is its catalytic function. Without enzyme, it may be slowly oxidized by oxygen in the air after being prepared into a solution. . The chromogen substrate needs to be prepared into a solution when used. The chromogen substrate produced by Desheng is a pure white powder, sealed and stored. After the solution is prepared, it should be prepared for immediate use. It will be slowly oxidized and discolored if it is in contact with air for a long time.   Chroma MAOS:   The absorption wavelength of chromogen MAOS is higher, reaching 630nm, which is less interfered by other substances in serum or other samples, and can be targeted for detection items that require high-precision values. However, the product of MAOS fades significantly, and the data needs to be observed in time during the test. Therefore, the MAOS test must be completed in time without interruption. Furthermore, the color reaction of MAOS has a wide adaptability to the pH of the reaction system, which greatly improves its adaptability. The reaction of some color reagents is often under acidic conditions, but biochemical detection usually requires the participation of enzymes. We know that the catalysis of enzymes is more sensitive to the pH of the reaction environment, and does not match the color reagents. Inactivation will be greatly restricted in use, but MAOS reagent does not have this problem.   Precautions for using MAOS   As MAOS is sensitive to light and humidity. Therefore, when we store, the storage temperature of refrigeration is between 0-10, and the temperature of frozen storage is below 0. If the storage temperature is not indicated, it is best to store in a cool place below 15 in principle. In principle, the expiration date of the product is because the reagents may change over time due to storage conditions or trace impurities mixed into it. Therefore, it is difficult to strictly determine the expiration date or shelf life.

Carbomer is a kind of acrylic resin. It is a white loose powder with strong hygroscopicity. Its molecular structure contains 52% ~ 68% carboxyl group. In water dispersions, a transparent gel can be formed by neutralizing alkaline substances with a non sticky feel. Carbomer has thickening effect in a wide range of pH.   It has the functions of thickening, suspending, emulsifying and pseudothixotropy, regulating the release of water and active substances, etc. it is a rheological modified thickener widely used in cosmetics.   Thickener is an important part of cosmetic formula, which not only makes it easy for the formulator to change the viscosity of the product, but also improves the stability, aesthetic feeling and fluidity of the product.   Carbopol gel   At the same time, Carbopol resin used for liquid thickening has the following advantages:   ① It does not irritate people's skin and eyes. After a lot of research, it is found that it is safer than salt and has been used for more than 50 years;   ② Compared with cellulose and guar gum, the suspension stability of silicone oil was higher;   (3) improving foam stability in low foam system.   ④ The results show that the cross-linked copolymer of acrylic resin can maintain high viscosity in the presence of salt, and is less affected by the pH value or electrolyte concentration of the solution, so it can be widely used;   ⑤ Easy to use, short wetting time, saving a lot of manpower, material resources and time;   ⑥ Good corrosion resistance, not easy to be decomposed by microorganisms, easy to preserve;   It has excellent rheology, which can adjust the viscosity of products, improve thixotropy of gel system, and improve product stability.   Only a small amount of carbomer can reach the required viscosity. The conventional dosage is 0.1% to 0.5%, and has the effect of thickening and stabilization. Thus, emulsion, cream and gel products with wide viscosity range and different rheology are prepared.   Another key characteristic of carbomer is its high fluidity, which can make the insoluble components suspend permanently in the low concentration system and make the product uniform and stable, while other thickeners such as cellulose can not provide suspension.   Desheng Technology specializes in the production of carbomer 940 and 980, with advanced production equipment and mature production technology, with an average daily output of tons. The carbomer powder produced by the company is whiter and more fluffy than that on the market, with better transparency after dissolution. According to the customer response, the effect of product use is good, can support free application sample trial, welcome to inquire and order!