China Wuhan Desheng Biochemical Technology Co., Ltd Company News

What are the types of vacuum blood collection gel?   When talking about serum separating gel, many people first think of its application in the vacuum blood collection tube. As an additive, it can separate serum and blood cells, so as to obtain high-quality serum samples and ensure the stability in transportation and storage. However, because they are prepared from chemical materials, the types of separation gel produced from different materials are different. What are the specific types in the market? Here's a detailed introduction.   1、 Silicone rubber system separator   The main part is silicone rubber, which is the first type of separating gel to be put into the market in the early stage, and is also commonly known as the "first generation separating gel". Its production process is unstable, which is prone to overturn, and its thixotropy, viscosity and hydrolysis resistance are at an immature stage, so it will not be used at present.   2、 Acrylic acid system separator   Its composition is mainly polyacrylate. After the improvement of the previous generation, this separation adhesive is hydrophobic and does not absorb water. Its turnover performance and thixotropy have been improved, and it is popular in the market. In addition, it has strong stability in direct contact with blood in a vacuum test tube, will not be easily oxidized, and is widely used.   3、 Resin system separator   The composition is mainly straight chain alkane resin. This separating gel has been further improved. It has better physiological inertia, is not easy to age, and is radiation resistant. Even if it is sterilized in the test tube, it will not have an impact. At the same time, it is compatible with other reagents. Sometimes, it can work together with anticoagulants to obtain more accurate results. Compared with the first two types, the production cost of this separation gel is also higher, and it is usually used for export or enterprises with higher requirements for quality.   4、 PRP separator   PRP is high concentration platelet rich plasma, and the role of PRP gel separator is to use PRP centrifuge to quickly separate blood, obtain high-quality platelet rich plasma, and then inject it into the part needed by the human body, playing the role of beauty repair or skin regeneration. This PRP gel is hydrophobic material, which can be separated and extracted in the original state of blood. Compared with traditional extraction methods, PRP gel not only simplifies the extraction process, but also improves the efficiency.   Desheng Biochemical is a professional manufacturer of serum separating adhesives in China. Its main types are resin type separating adhesives, acrylic acid system separating adhesives and PRP separating adhesives. Its performance is stable, its specific gravity is accurate, it is not easy to cause aging and turnover, and it has the function of anti irradiation, which can be effectively used in various blood tests. If you have relevant needs, please click the website for consultation!

What are the brands of serum separating gel?      Speaking of serum separating gel, it is mainly used as an additive in vacuum test tubes, and is favored by various medical institutions for blood detection and analysis. In fact, in the early days, the production and research and development of blood collection reagent enterprises in China was relatively slow due to the limitation of raw material technology. However, in recent years, due to the continuous breakthroughs and innovations of domestic raw material factories, medicine has entered the era of full automation, especially the popularity of serum gel separators, which can fully meet the needs at home and abroad, but it also means that there are more manufacturers of gel separators. At this time, the brand selection is good or bad, It determines the use effect.      There are many brands of serum separating gel in China, including Desheng, Jie'an and Huzheng. Which one is better with so many brands? You can analyze more about the advantages and choose a brand that suits you. Here, we will focus on recommending a brand - Desheng, which occupies a seat in the market and is very popular. Why do you say that? Now, let's introduce it to you in detail.       1、 Desheng brand     Desheng, fully known as Hubei New Desheng Material Technology Co., Ltd., has been committed to the research, development and production of blood collection additives since 2005, providing raw material support, professional solutions and high-quality services for many diagnostic reagent enterprises at home and abroad. Among them, the serum separating gel products have undergone four generations of research, development and improvement. From the beginning, it is not radiation resistant and easy to age, to the end, it is radiation resistant, hydrolysis resistant, not easy to age, and suitable for long-term blood preservation. The serum separating gel of Desheng brand has been recognized by more than 100 well-known enterprises and sold overseas.       2、 Advantages of Desheng serum separating gel       1. Desheng separation gel has good thixotropy and physiological inertia, and does not react with other added substances in the test tube, causing interference.       2. After 4 generations of improvement, they all have anti irradiation function, and even after sterilization, the products remain unchanged.       3. Stable performance, it can preserve the integrity of blood cells for a long time without damaging them.       4. Precise specific gravity, located between blood clots and serum, can accurately separate and extract high-quality serum.       5. The serum separating gel of Desheng brand has obtained the national patent of China, and its process is stable, the ingredients are safe, and the use is efficient and convenient.       In addition, according to the different needs of customers, Desheng can meet the customization of separation gel indicators. As a production enterprise, there are a large number of spot stocks in the warehouse, which can be directly supplied. If problems occur, professionals will provide solutions for you. With 18 years of efforts, the serum separating gel of Desheng brand has developed steadily and is favored by the market. If you have relevant needs, please click the website for consultation!

What is the purity testing method of EDTA Tripotassium?       Tripotassium ethylenediaminetetraacetate is called EDTA-3K for short. Because of its anticoagulant performance, it is often used as an anticoagulant in blood collection vessels, and is favored by some reagent manufacturers. But at the same time, due to the expansion of demand, there are more and more manufacturers producing tri potassium EDTA, the quality becomes uneven, and many low-quality products are also included.       What are the representative characteristics of "inferior" products? The main problems are unstable performance, low purity and appearance defects. How to identify these "inferior" products? In fact, PH value, clarity, solubility, purity and impurities are the key factors that determine the performance of EDTA. Special attention should be paid to these indicators, which can be detected if necessary, so as to avoid buying inferior products with poor performance. So, what is the purity detection method of EDTA? Next, I would like to give you a detailed introduction.       1. Purity test       The detection method of tri potassium ethylenediaminetetraacetate is the same as that of di potassium ethylenediaminetetraacetate. The main method is to weigh 0.1g tri potassium ethylenediaminetetraacetate sample, which can be accurate to 0.0001g under special circumstances. Add 70mL of water and 10mL of ammonia ammonium chloride buffer solution with pH value of about 10. After the sample is fully dissolved, add 5 drops of chrome black T indicator, 5g/L, and titrate with zinc chloride standard titration solution until the solution turns red purple [c (ZnCL2)=0.025mol/L].       2. PH value detection       Weigh 5g of test EDTA potassium sample, dissolve it in 100ml of pure water, stir for about 5min at room temperature, and test the PH value. The pH value of Desheng's EDTA potassium is 7.3 ± 1 (5% aqueous solution, g/ml).       3. Clarity test       Weigh 20g of EDTA tri potassium test sample, dissolve it in 100ml of pure water solution, stir for 5-10 minutes at room temperature, and compare the prepared solution with colorless transparent liquid to see if it is clear.       4. Solubility test       Weigh 60.0g of EDTA tri potassium sample to be tested, dissolve it in 100ml pure water, stir for 5-10 minutes at 25 ℃ at room temperature, carefully observe the dissolution, and see if the water solubility is greater than or equal to 60%.       5. Impurity detection       Place 0.22 filter membrane in the detection apparatus, pour the EDTA tripotassium solution into the filter, and observe whether there are impurities or excessive impurities on the filter membrane. If there are many impurities, it is recommended not to use it.       The above five detection methods are used to judge whether the quality of EDTA tripotassium is up to the standard. The key is the purity, which is up to 99% or more, and will not affect the detection experiment, so you can add it into the test tube with confidence.           Desheng Biochemical has been committed to developing the research, development, production and sales of additives for blood collection vessels. As one of the main products, tri potassium ethylenediaminetetraacetate is not only of high purity, but also indicators in all aspects are formulated by R&D personnel according to the testing standards, with strict requirements and precise control. If you have the demand for EDTA, please click the website for consultation and purchase!

Which one is commonly used as edta disodium or edta potassium anticoagulant?       Both edta disodium and edta dipotassium contain the substance edta. From the surface morphology, they are similar, but they also have fundamental differences. In addition to the differences between sodium salt and potassium salt, although both can be added to the test tube as anticoagulants, they are also widely used and commonly used. Now let's introduce to you in detail which one is commonly used as anticoagulant, edta disodium and edta potassium?       Properties of edta disodium and edta potassium       If you want to know which kind of common anticoagulant is edta disodium or edta potassium, you need to clearly understand its performance. Both of them are white crystalline powder with no odor and can dissolve in water, but the difference is the PH value and the metal ions contained. The PH value of edta disodium is 5.5, and the PH value of edta potassium is 4.8. One contains sodium ions and the other contains potassium ions. Edta dipotassium is usually in a spray dry state on the inner wall of the test tube, which does not interfere with cell components. In addition, because its solubility is higher than edta dipotassium, edta dipotassium is more popular in the market and is a commonly used anticoagulant.       Use of edta disodium and edta potassium       Edta disodium and edta dipotassium can be complexed with most metal substances due to their own properties, so in blood analysis, both can directly play an anticoagulant effect in test tubes, and are widely used in the medical field. However, it should be noted that edta dipotassium is used more frequently than edta disodium. edta disodium is mainly used in food or industrial fields, because it can be used as a key antioxidant to avoid deterioration, discoloration or other effects caused by air oxidation caused by various metal materials or substances.       From the above two aspects, although edta disodium and edta dipotassium have similar performance and can be used as anticoagulants by complexing metal ions, edta dipotassium will be more popular and commonly used as anticoagulants due to market demand and solubility. However, edta disodium may be used more in industry, but the choice of which anticoagulant to use is based on your own needs. As long as the detection effect can be achieved, any one can be used.      Desheng Biochemical is a manufacturer that has the advantage of supplying EDTA series products, and the company started as an additive for blood collection vessels from the very beginning of its establishment, followed the market changes, and later developed other types of products, such as biological buffers, luminous reagents and chromogenic substrates, enzyme preparations, etc. Although there are many products, the additives for blood collection tubes are always the core products. For this reason, the company has also set up a special testing department to accurately control the quality of products, and the stock is sufficient. If you have this demand, please click the website for details!

  How does the serum separating gel separate blood components?       The serum separating gel is a kind of viscous fluid, which is mainly composed of high polymer and has physiological inertia. In its structure, it contains a large number of hydrogen bonds. The association of hydrogen bonds forms a network structure, and because the polymer is a mixture, polymerized from a variety of monomers with different relative molecular weights, it has a large relative molecular weight, so it will show a uniform gel shape in appearance.  

Why EDTA Tripotassium is used in blood collection？   As a potassium salt, tri potassium EDTA can chelate with most metals to form a stable chelate, so it is often used as a chelating agent in various products. The most common application is in blood collection. It is added to blood collection tubes to play the role of blood anticoagulation. Although EDTA tri potassium is widely used, many people still do not know why it is used in blood collection. So, let me introduce it to you in detail.   1、 Performance of EDTA tripotassium The use of EDTA tri potassium in blood collection is determined by its performance. As a potassium salt, it has its own chelating property. It can chelate calcium ions, sodium ions, magnesium ions and other metal substances together without reaction. After the blood sample is drawn, the blood sample contains calcium ions. In the process of full contact, tri potassium EDTA will immediately play its own chelating property, blocking the coagulation function from the source, so that the blood will not clot in a certain time, improving the detection efficiency.   2、 International recognition In 1993, the International Blood Standards Committee recognized that tri potassium EDTA could be used as an anticoagulant for blood analysis, and vigorously promoted its first use. In the era of fully automated medicine, the popularity of EDTA tri potassium not only provides convenience for medical personnel and shortens the detection time, but also avoids the error of detection results and waste of medical resources to a certain extent.   3、 Simple and convenient configuration Generally, in order to facilitate transportation and storage, many raw material manufacturers produce EDTA trisotassium in powder form, which is not directly added to the test tube, so it needs to be prepared into a solution before use. The solution added to the blood collection tube needs to meet the key indicators and be easy to operate. On the premise of ensuring the solubility, it is only necessary to dissolve the EDTA potassium trioxide powder with deionized water. After the solution is injected into the test tube, it can be dried. The configuration process is simple, which is conducive to rapid supply and blood collection, and is the unanimous choice of everyone.   Desheng Biochemical is a professional manufacturer of blood collection reagents. The EDTA series products manufactured, such as EDTA dipotassium/tripossium/disodium, are of high purity and excellent performance. They are analytical pure grade and are supplied to downstream reagent manufacturers for a long time. The factory is equipped with advanced equipment, independent warehouse and stable supply. If you have relevant needs, please click the website or call for details!

What is the purity test method of potassium ethylenediaminetetraacetate?   Bottled EDTA dipotassium ethylenediaminetetraacetic acid dipotassium is called EDTA-2K for short. As an anticoagulant commonly used in blood collection vessels, its anticoagulation performance is good, so it is favored by many downstream reagent manufacturers and medical institutions. At the same time, there are more and more factories producing potassium ethylenediaminetetraacetate in the upstream, the quality becomes uneven, and many inferior products are mixed in.   The so-called "inferior" products refer to unstable performance, low purity and appearance defects. Among so many products with poor quality, how should buyers identify them?   The key to determine the performance of potassium ethylenediaminetetraacetate is its purity, pH value, clarity, solubility and impurities. Therefore, special attention should be paid to these aspects, and testing can be conducted if necessary to avoid purchasing products with poor performance. So, what is the purity test method of potassium ethylenediaminetetraacetate? Next, I would like to give you a detailed introduction.   1. Purity test Weigh 0.1g of EDTA potassium sample, accurate to 0.0001g if necessary, add 70mL of water and 10mL of ammonia ammonium chloride buffer solution with pH value of about 10. After the sample is fully dissolved, add 5 drops of chrome black T indicator, 5g/L, and titrate with zinc chloride standard titration solution until the solution turns red purple [c (ZnCL2)=0.025mol/L].   The purity of potassium ethylenediaminetetraacetate produced by Desheng is higher than 100, which is a normal phenomenon, because the company's potassium ethylenediaminetetraacetate is a dihydrate, and the main content detected contains two crystal water.   2. PH value test Weigh 5g of test potassium sample, dissolve it in 100ml of pure water, stir for about 5min at room temperature, and test the PH value. The pH value of Desheng's potassium is 4.8 ± 1 (5% aqueous solution, g/ml). 3. Clarity test   Weigh 20g of test sample, dissolve it in 100ml of pure water solution, stir it for 5-10 minutes at room temperature, and compare the prepared water solution with colorless transparent liquid.   4. Solubility test Weigh 60.0g of the sample to be tested, dissolve it in 100ml of pure water, stir for 5-10 minutes at room temperature (25 ± 5 ℃), and observe the dissolution.   5. Impurity test Place 0.22 filter membrane in the testing vessel, pour the solution into the filter, and observe whether there are impurities on the filter membrane and whether there are too many impurities.   The above five aspects are all methods to test the performance of potassium ethylenediaminetetraacetate. If the test is up to the standard, the performance is stable and will not interfere with the test. Desheng Biochemical has been committed to developing additives for blood collection vessels. One of the main products is potassium ethylenediaminetetraacetate, which is not only 99% pure, but also has strict requirements in all aspects. Its performance is extremely stable. If you have a demand for potassium ethylenediaminetetraacetate, please click the website to consult and buy!

EDTA K2, as a blood anticoagulant, is widely used in vacuum blood collection tubes. With the advancement of blood routine projects, the demand for EDTA K2 is also increasing, and the sales of EDTA K2 in the market are gradually optimistic . Many manufacturers of EDTA K2 have emerged as the times require, for example: Qiyue, Baxter, Yuanda and so on. At the same time, it brings products of varying quality. So, which manufacturers of EDTA K2 have better quality in China? Let me introduce it to you in detail.   In fact, one of the Chinese EDTA K2 manufacturers that needs to be introduced here is Desheng Biochemical. Its EDTA K2 has stable performance and good anticoagulation effect, and is well received by customers in China. Why is the quality good?   1. EDTA K2 works well In the process of producing EDTA K2, Desheng will strictly abide by the corresponding process to ensure the use effect. The main content of EDTA K2 produced is as high as 99%, does not contain any impurities, and has stable performance. It can be dissolved in water and has high clarity. Blood anticoagulant, will not react with blood, anticoagulant effect is excellent.   2. After-sales guarantee When anyone buys a product, he will not only consider the quality problem, but also think deeply about the after-sales service after the purchase. Some unreliable EDTA K2 manufacturers will ignore the products after they are sold out. Once there is a problem, they can only hold hands At a loss. And Desheng has professional after-sales service, which increases the guarantee for the purchase of EDTA K2, can also properly solve the problems that arise, and can provide return and exchange services.   3. Sufficient goods In fact, many buyers purchase EDTA K2 in bulk, and the demand is huge. However, many manufacturers cannot provide a large amount of goods for a while, so they have to postpone or not sign the contract. However, Desheng not only has rich experience and core technology, but also has a large number of spot goods in its warehouse, with a daily production capacity of up to tons, which can fully meet the supply of goods and will not be out of stock.   4. Favorable price, trial samples Many customers pay special attention to the price of EDTA K2, which is actually closely related to the quality. If the quality is excellent, the price will naturally be high. However, Desheng’s price is not fixed. It will negotiate the price according to the customer’s demand, and the large quantity can be discounted. Give a satisfactory price. And in order to save customers' time, sample testing will be provided to provide customers with all-round protection.   Desheng Biochemical has always been a professional manufacturer of EDTA K2 in China. It not only sells well in the domestic market, but also has been exporting abroad. The reason why we cooperate with so many customers has a lot to do with its use effect, after-sales guarantee, price and sufficient goods. If you have a demand for EDTA K2, please click the website to inquire for details!  

Ethylenediaminetetraacetic acid is also known as EDTA in Chinese. As an organic compound, it is odorless and tasteless materials, usually can be divided into analytical pure level and industrial level,which can be used in different fields.Among them, EDTA of analytical grade is mostly used in vacuum blood collection tubes, such as dipotassium and tripotassium EDTA. After blood is drawn in the hospital, in order to improve the test efficiency and ensure the test results, anticoagulants will be used to prevent the blood from coagulating.   Because of its ability to complex metal ions, EDTA is close to calcium ions in the blood, chelating them together, and preventing blood coagulation from the root, so it is often added to blood collection tubes for extracorporeal blood anticoagulation. , its anticoagulant effect is good, and it has little effect on the morphology of blood cells.   The requirements for analytically pure EDTA are higher than those for industrial grades, and its purity, performance, melting point, pH value and other key indicators must be strictly required and accurately controlled in analytically pure grades. Although the requirements for industrial grades will be lower, there are also many fields of application, such as applications in water treatment and the preparation of metal polishes.   In terms of water treatment, because EDTA has the characteristics of coordination, it can basically chelate with all metal ions, and this metal chelate has good solubility under slightly acidic conditions, and can be used as water softener and equipment cleaning applications. In the preparation of metal polishing agent, because of its chelating performance with scientifically proportioned, the prepared polishing agent can remove impurities on the metal surface easier.   Desheng Biochemical is a manufacturer of EDTA, which includes dipotassium EDTA, tripotassium EDTA and disodium EDTA.All of them are of analytical grade, with a main content of over 99%. Dipotassium acetate is a dihydrate and is usually used for extracorporeal blood anticoagulation. If you need to use industrial-grade products, you can also go to consult, Desheng can customize according to customer requirements, welcome to click the website or inquire to purchase!

What is the appearance performance of EDTA tripotassium？   With the development of medicine, EDTA tri potassium has been widely used in medical institutions in various countries. Many people do not know why it is so hot and popular? In fact, this is mainly related to the performance of EDTA trisotassium. Here is a detailed introduction.   EDTA tri potassium, also known as ethylenediaminetetraacetic acid tri potassium, CAS No. 65501-24-8, is widely added to blood collection tube as an anticoagulant. Its principle of action is that EDTA can be close to calcium ions in the blood, complex with calcium ions, inactivate prothrombin and prevent blood coagulation. The biochemical indicators of blood samples after anticoagulation treatment are closer to the physiological level, which is conducive to the accuracy of detection results and prolonging the storage time of blood samples.   Appearance of EDTA tri potassium   The appearance of EDTA tri potassium is white crystalline powder, no odor, soluble in water, because its powder is easy to absorb moisture from air and water molecules.   Performance of EDTA tripotassium   1. The molecular weight is 442.56, the pH value is 7.3 ± 1 in 5% aqueous solution, the solubility in water is ≥ 60% at 25 ℃, and it is stable at room temperature.   2. The purity is more than 99%, without any impurities. After the powder is dissolved, the water has high clarity, which is easy to add to the blood collection tube without any other adverse effects.   3. EDTA tri potassium does not damage blood cells, does not interfere with the white blood cell count, and prevents platelet aggregation, so it can be applied to general hematological examination. However, it should be noted that due to its anticoagulant effect, it is not applicable to the blood coagulation test. In addition, the ability to complexe calcium ions is also not applicable to the determination of calcium ions, sodium ions, iron ions, etc.   Nowadays, medicine has developed to the era of full automation, and the demand for EDTA tri potassium will become larger and larger. Many businesses in the market have also seized the opportunity and started to sell it on a large scale, which not only leads to the uneven quality of EDTA tri potassium, but also brings pressure to real powerful manufacturers.   Here we recommend a manufacturer of EDTA Tripotassium: "Hubei New Desheng Material Technology Co., Ltd.". This is an old brand manufacturer specializing in the production of additives for blood collection tube. It has not only developed patented products, but also passed the quality certification. At the same time, it can customize products according to customer needs.If you have relevant needs, please click the website for details!

How can we judge the quality of dipotassium edetate? Many people buy a product now, they have to check what material it is made of and whether its quality is good or not. Not to mention the dipotassium edetate used for blood anticoagulation, its quality requirements are more stringent, and many people will pay special attention to its appearance and key indicators, so let me introduce ethylenediamine in detail below What indicators can be used to check the quality of dipotassium tetraacetate.   1. Purity content The purity of dipotassium EDTA determines whether it contains impurities. The more impurities, the more unfavorable it is for experimental detection. Usually, the purity of dipotassium EDTA is above 99%. If it is lower than 99%, its quality needs to be considered There may be problems. The dipotassium EDTA produced by Desheng is a dihydrate with a purity of 99.5%.   2. PH value The pH value of dipotassium EDTA produced by Desheng is 4.8 ± 1 (5% aqueous solution, g/ml). The pH value plays an important role in stabilizing the performance of dipotassium EDTA. If the pH value is Alterations in selection and control have a direct impact on test results.   3. Compatibility of Dipotassium EDTA with other blood collection tube additives Different blood collection tubes have different testing items, and their requirements are also different, and this requires that dipotassium edetate can work well with other additives in blood collection tubes, such as being placed together with serum separating gel In the nucleic acid detection test tube, it is required that the two cannot react, remain stable, and play their respective roles.   4. Solubility The solubility of dipotassium edetate is a key indicator. Since the appearance of the produced product is mostly white crystalline powder, it exists in the form of water mist when placed in blood collection tubes. If its solubility is not good , or the dissolution is very slow, which will inevitably affect the entire detection process. The dipotassium produced by Desheng is dissolved in 100 ml of pure water at room temperature (25±5°C), stirred for 5-10 minutes, and then dissolved.   5. Storage time of dipotassium ethylenediaminetetraacetic acid The validity period of dipotassium ethylenediaminetetraacetic acid is generally determined according to the manufacturer. The indicators of each manufacturer are different, and its shelf life is 1 year, 2 years or 3 years. The ability to guarantee the original properties of the blood sample shows that the performance and quality of dipotassium is relatively good.   Desheng Biochemical has been committed to the development of blood collection tube additives for many years. Now the series of products produced include serum separation gel, heparin sodium, heparin lithium, EDTA dipotassium, tripotassium, disodium, etc., and customers have repurchased them for a long time, proving its The product quality is excellent, and the key indicators are up to standard, even more accurate. If you have a demand for dipotassium edetate, please click the website for consultation!  

Are plastic tubes, glass tubes all suitable for EDTA K2 anticoagulant?   In recent years, the series of vacuum blood collection tubes used for blood samples have become mainstream. In the past, after blood samples were drawn, waiting for blood coagulation, blood centrifugation, and measuring storage time not only affected the analysis results, but also lengthened the entire time period. In order to improve efficiency, it was later developed to add anticoagulant or coagulant, serum separation gel, etc. to blood collection tubes. The more commonly used is EDTA anticoagulant, which greatly facilitates clinical blood testing.   At the same time, in order to prevent cross-infection safety hazards, standardize the testing of blood collection technology, and then there will be a complete set of whole blood collection tubes, including plastic tubes and glass tubes. The vacuum test tube added to EDTA K2 anticoagulant can be either a plastic tube or a glass tube. The overall performance of EDTA K2 anticoagulant has no fundamental connection with the test tube, but these two tubes have their own advantages and disadvantages. Let me introduce to you the difference between EDTA plastic tubes and glass tubes.   1. Glass tube After blood collection, the inner wall of the glass test tube will often absorb water molecules. As the blood sample is placed, the potassium or enzyme substances in blood cells will diffuse into the serum through water molecules. Complete the blood test as soon as possible within hours, and the use of glass test tubes will further shorten the blood storage time, and the glass tubes are easy to break, which is extremely inconvenient for transportation.   2. Plastic tube Although the plastic tube is easy to transport and not easy to break, its water retention is not good, and it is easy to cause the sprayed EDTA K2 solvent to evaporate within a certain period of time. However, PET plastic vacuum blood collection tubes are more special. Under low temperature conditions, such as Specimens can also be preserved at -20°C, which is difficult for ordinary plastic and glass test tubes. Nowadays, some fast-growing blood collection tube companies have produced double-layer plastic tubes. This kind of test tube not only does not evaporate the solution, but also solves the transportation problem. Of course, its production cost is relatively high.   Desheng Biochemical specializes in providing all kinds of blood collection tube additives. We have a complete range and high-quality products that has been repurchased by customers for a long time and sold overseas. We have signed supply contracts with more than 100 companies. We are equipped with a large warehouse and a daily production capacity of up to tons, which can solve the troubles of customers out of stock and out of stock. If you have needs for blood collection tube additives, please visit our website!