China Wuhan Desheng Biochemical Technology Co., Ltd Company News

what comes first serum or gel       When checking their bodies in hospitals, many people go through the process of blood testing, mainly because the blood contains serum and plasma, which provide organic substances for the body. Once there is a disease, they first undergo changes, which is also the basis for effective judgment by medical staff. However, blood testing items are not always single and unchanging, and the requirements for different testing items vary. For example, for erythrocyte sedimentation rate testing, green heparin test tubes are required, while for routine serum testing, serum separation gel yellow tubes are required.       The yellow serum separation tube is the most widely used in clinical practice, as it can efficiently extract serum samples and obtain accurate detection reports in a short period of time. But in the actual operation process, sometimes it is found that the position of serum and glue is prone to change. What is this? Which one is on top?       1、 Performance of serum separation gel       Firstly, to accurately determine which separation gel is on top of the serum, it is necessary to fully understand the performance of the separation gel. As a hydrophobic organic compound, it is not only physiologically inert, but also has thixotropy and accurate specific gravity. When centrifugation is not carried out, it is generally located at the bottom of the test tube. But when the blood enters the tube and is completely coagulated, it is placed in a centrifuge. Due to its specific gravity ranging from 1.045 to 1.065g/cm3, while the serum has a specific gravity ranging from 1.026 to 1.031 g/cm3 and the blood clot has a specific gravity ranging from 1.090 to 1.095 g/cm3, the sequence presented after centrifugation and flipping should be that the serum is above the separation gel and the blood clot is at the bottom.         2、 The role of separation gel under serum       Due to the performance of the separation gel and the effect of external centrifugal force, it is located between the serum and the blood clot, which can effectively prevent the interaction behavior between blood cell components, ensure the stability of the serum sample, and also improve the efficiency of sample collection and the quality level of sample processing.       3、 The reason why the separation gel appears above the serum       Under normal circumstances, serum is always above the separation gel, but sometimes there may be cases where the serum flips below the separation gel. Why is this? In fact, this is related to its specific gravity. Accurate control of the specific gravity must be between the serum and blood cells. If it is too large or too small, it can lead to poor flipping or the situation where blood and separation gel are intertwined.       Based on the above introduction, I believe everyone already knows the location of serum and separation gel. The most important thing in the operation process is to ensure the reliable quality of the separation gel. As a professional manufacturer of serum separation gel, Desheng has been carefully researched and developed since its establishment, with precise formulation of key values, excellent flipping performance, and almost no poor separation effect. If you have any needs, please click on the website to inquire about details and purchase!

gel serum separator tube       In early clinical medicine, the commonly used test tube was red, but now yellow tubes are widely used instead. This is mainly because yellow tubes contain serum separation gel substances, which can effectively help improve blood separation and detection efficiency. How to make good use of this gel serum separation tube in clinical practice? Let's take a specific look below.       1、 Advantages of yellow gel serum separating tube       Compared with the common red serum tube, the gel serum separation tube has many advantages that can not be ignored. First, it can realize on-line detection in the same tube without transferring serum samples, reducing detection steps and time. And it can also store and transfer serum samples in the original tube without interfering with the results of biochemical and immune tests, and the serum composition will not change.       2、 Basic properties of serum separation gel       In order to better use serum separation tubes, the first thing to understand is the separation gel, which is an inert reagent with strong stability, hydrophobic material that is insoluble in water, and resistant to high temperatures and oxidation. It is precisely these characteristics, combined with the action of centrifugal force, that enable the serum separation tube to effectively process blood, ensuring the extraction of high-quality serum samples.   gel serum separator tube       3、 Use of gel serum separating tube       1. After collecting the blood sample with the gel serum separating tube, slowly reverse and mix it for about 5 times as soon as possible, so that the blood sample can fully contact the reagent in the test tube, so as to ensure the quality of serum precipitation and avoid blood clamping.       2. After the sample collection is completed, place the test tube for half an hour and wait for the serum to completely precipitate before centrifugation.       3. If the blood collection environment is too low, the storage time of the blood sample should be appropriately extended, and the optimal storage temperature is around 25 degrees Celsius, so that serum precipitation can reach the ideal state.       4. Although the serum separation gel has a precise specific gravity and can be flipped under the action of a centrifuge, attention should be paid to the centrifugal speed and time. Improper operation can also lead to a decrease in the quality of the serum after centrifugation.       As a manufacturer of serum separation gel in China, Desheng has its own unique technology and rich experience, as well as large-scale production equipment. Its daily production can reach tons, ensuring the supply needs of customers. At present, it has become a hot selling product in the domestic market and is constantly developing internationally. Interested parties are welcome to choose Desheng to order. We hope that our services and products can bring the most enjoyable user experience to all customers.

serum separation procedure       Routine blood separation is a necessary step in clinical experiments, so we often see centrifuges used to separate blood in the blood testing department of hospitals. Most clinical tests do not test whole blood, but mainly use serum that has fibrinogen removed as the main test object. However, serum separation is not a simple matter. It requires a series of procedures to obtain effective serum samples to achieve experimental purposes.       1、 What is serum?       The essence of blood coagulation is that it contains fibrinogen, which can be transformed into insoluble fibrin, and then interwoven into a network, trapping a large number of blood cells to form gel like blood clots. Generally, after the collected blood sample tube is placed for about 1 hour, the clot after coagulation contracts and hardens, resulting in the extrusion of a clear yellow liquid called serum.   Serum separating gel       2、 Serum Separation Procedure       There are many methods for serum separation, so the procedures vary. There are generally two common methods:  

what causes serum to gel       In the daily blood testing work of hospitals, yellow test tubes containing serum separation gel are often used to collect blood samples, because the serum separation gel in the test tubes can quickly separate blood clots from serum, thereby obtaining high-quality serum samples for testing and analysis. However, during the operation process, serum coagulation still occurs. What is the reason for this? Many people suspect that it is due to serum separation gel, but is it related to it? Below is a specific analysis for everyone.       There are generally three reasons why serum coagulation occurs when using serum separation hoses:       1、 Sample placement time is too short       In fact, the coagulation process is relatively complex. When blood leaves the body, it coagulates because its coagulation factors are activated to convert into thrombin, which catalyzes the conversion of fibrinogen to fibrin. If the separation rubber tube is placed for too short a time, and the blood sample is not completely coagulated before being centrifuged, the blood cell components will be forced to leave the fibrin network during the operation process. In addition, the specific gravity of the serum separation rubber is small, and once the external force disappears, fibrinogen will remain in the serum layer, leading to coagulation.   Serum separating gel       2、 The patient used anticoagulant drugs       Many people suffer from diseases, and medical personnel will inject them with drugs such as baimei snake venom hemagglutinin and human prothrombin complex to promote blood coagulation. If blood samples are collected when drugs are used excessively or improperly, and the blood contains such anticoagulant drugs, even if they are separated, the serum will still contain residual anticoagulant components, which can lead to coagulation of the serum.       3、 Patient Disease Impact       Another reason for blood coagulation is due to abnormalities in the patient's own platelets. Blood is collected using a separation hose and separated. However, due to disease reasons, platelets can release many vasoactive substances that promote blood coagulation. This can also interfere with the blood serum under normal circumstances, resulting in blood containing clotting substances, which can promote blood coagulation.       In clinical blood diagnosis and analysis, the phenomenon of serum coagulation greatly affects the overall detection efficiency and delays. Understanding the causes can better help everyone avoid such problems.       Desheng is a supplier of a full range of blood collection additives in China, including serum separation gel, heparin sodium, heparin lithium, EDTA potassium salt, and other products. The product performance is stable, all of which are analytical grade, and can meet different experimental requirements. If you are interested, please click on the website to inquire about details and purchase!

what is serum separation       As a key link in clinical blood testing, the main purpose of serum separation is to obtain high-quality serum samples for testing. Because the isolated serum does not contain fibrinogen, it can provide nutrition and an environment suitable for cell survival in the human body. Through its detection, it can clearly understand whether patients have hidden diseases, facilitating medical personnel to carry out treatment and prevention work. So what is serum separation? How to obtain high-quality serum samples? Next, I will give you a specific introduction.       1、 What is serum separation?       In blood testing, serum and plasma as a whole are collectively referred to as "blood samples". However, during the analysis and testing process, traditional Chinese medical personnel do not directly operate with blood samples. First, they separate the serum from plasma in the blood, and only extract serum as a sample for testing. Especially in serological testing, serum separation is an essential operational step.       2、 Why choose a serum sample for testing?       In fact, the two main components contained in blood are serum and plasma. The difference between them is that serum does not contain fibrinogen, while plasma contains this substance. When testing and storing in vitro, the fibrinogen contained in it can change for various reasons, such as temperature or the addition of calcium ions. In this case, the plasma may form a gelatinous state, which is not conducive to experiments. Therefore, using serum for testing is the best option.       3、 Use of serum separating gel       The operation of serum separation is mostly carried out in the yellow tube of serum separation gel, because it contains a substance called separation gel. Relying on its stable performance, good thixotropy, and accurate specific gravity, it can ensure that the blood in the tube does not change, and can quickly complete serum separation, prevent material exchange between serum and blood clots, which is conducive to the stability of the test.       4、 Methods of serum separation       There are generally two methods for serum separation, namely, natural sedimentation and centrifugation. The natural sedimentation method is to place the collected blood test tube under normal temperature for a period of time, and after the blood naturally coagulates, the serum can be separated out. Although it is a common method, it takes a long time, which is not conducive to improving the detection efficiency. The centrifugation method is closely related to the serum separation gel. With the cooperation of the serum separation gel and the centrifuge, the reversal is realized based on the different specific gravity of the serum in the blood, plasma, and separation gel, which can quickly separate the serum and complete the detection.       As a professional supplier of serum separation gel, Desheng has clear specifications for its performance, physiological inertness, specific gravity, and viscosity, which can ensure rapid and effective separation of serum in experiments. If you are interested, please click on the website to inquire about details and purchase!  

What are blood collection coagulants?       When conducting blood sampling tests in hospitals, most people will focus their eyes on vacuum blood collection vessels, but in fact, blood collection vessels are only a part of them, and the additives inside are the key, such as commonly used coagulants, anticoagulants, and serum separation gels, which can be added to blood collection vessels and applied to different test items. Recently, coagulant accelerators have been frequently purchased in the market, and many manufacturers have seized the opportunity to rapidly produce them. Therefore, there are more types of coagulant accelerators, so what are they? Let's focus on this aspect and introduce it to everyone.       1、 Rabbit Brain Powder Coagulant       This type of coagulant is a biological type and has few main applications. Its coagulation mechanism is to first promote plasma coagulation, then drive blood cells to coagulate during the reaction process, and then trap white blood cells through fibrin to achieve the goal of blood coagulation. It should be noted that it is susceptible to interference from external ambient temperature and is not easy to conduct coagulation promoting experiments under low temperature conditions.   Blood collection accelerator     2、 Coagulant activating enzyme coagulant       This is also a biological type of coagulant, and its mechanism of action is relatively similar to the first type of coagulant. The coagulant promoting effect is fast, but there may be poor blood clot contraction. As an enzyme preparation, thrombin has the characteristics of not being easy to preserve and inactivate, and is also susceptible to temperature effects, especially at low temperatures, where delayed coagulation is required.       3、 No type accelerator       The composition of this coagulant is mainly composed of silicon dioxide powder, dolomite, diatomite, etc. The key role is silicon dioxide. However, the amount of silicon dioxide added by different manufacturers during the preparation process varies, so the coagulant promoting effect also varies. Compared with the two aforementioned coagulants, it has its own unique advantages. It can activate the blood coagulation system as a whole, enabling rapid coagulation response, and achieving ideal coagulation promoting effects.       Judging from the overall situation in the current market, the standard for the use of coagulant enhancers is coagulation efficacy and performance indicators. Regardless of which one is selected, the most important thing is to use coagulant enhancers that meet your own experimental requirements. Desheng, as one of the manufacturers of coagulant enhancers in China, not only has advanced technology, but also has an excellent research and development team and service personnel. From customer ordering, delivery, and after-sales, there are dedicated personnel to receive and track, ensuring the customer's sense of use experience. If you have any relevant needs, please click on the website to consult and purchase!

Do I need to shake up the blood collection accelerator?       The emergence of vacuum blood sampling additives not only provides convenience to major medical institutions, but also promotes more accurate testing results and reduces errors. Compared to traditional blood testing methods, blood is collected, tested, and analyzed in the original test tube, avoiding the possibility of cross infection to some extent. As one of the additives, coagulant enhancers generally appear in routine blood testing, which plays a role in promoting blood coagulation. However, in real life, many "novices" in hospitals do not know whether it is necessary to shake up blood samples containing coagulants? So let's focus on introducing it to everyone.       1、 Coagulant effect       Coagulant enhancers are often added to test tubes by machine or manual means, and are evenly sprayed on the inner wall to promote rapid blood coagulation. Due to the long waiting time for coagulation under natural conditions and the susceptibility to external interference that affects the accuracy of the results, the use of coagulants in test tubes has become extremely important and is one of the popular reagents in most medical institutions.   Coagulant accelerator       2、 Shake up the blood collection accelerator       In fact, it is necessary to shake the blood collection vessel containing coagulant promoting agent well, but pay attention to the strength. If the shaking force is too large, it is easy to cause damage to blood cell components, and eventually lead to hemolysis. If the shaking force is too small, the purpose of mixing may not be achieved, which will lead to poor coagulation promoting effect. It is recommended not to shake the coagulant promoting tube immediately when starting to pick it up. You can slowly invert it up and down to fully mix the coagulant promoting agent and blood.       3、 Precautions for use of coagulation promoting tubes       1. When using test tubes, special attention should be paid to the ambient temperature conditions. The ambient temperature should not be lower than 20 ℃. If it is lower than this value, it is not only necessary to increase the amount of coagulant added, but also to increase the mixing times and extend the coagulation promoting time.       2. Pay attention to the length of the coagulation promoting time. If the coagulation is not complete, it cannot be directly operated, otherwise it may easily lead to hemolysis.       3. Attention should be paid to placing the storage promoting coagulation tube at normal temperature, and it should not be stored under excessively high or excessive temperature conditions, which is not conducive to experimental detection.       As a professional supplier of coagulant enhancers, Desheng not only has reliable product quality, but also has perfect after-sales service. Once problems occur with the products used, professional personnel will track and solve them one-on-one to ensure customer satisfaction. At the same time, as a manufacturer of a full range of additives for blood collection in China, it can provide customers with one-stop purchasing services, not only helping to save time, but also ensuring lower purchasing costs. If you are interested, please click on the website or call for consultation!

Effect of blood collection coagulant       In clinical work, serum samples are one of the important samples for analysis and testing, but they cannot be directly used after collecting blood samples. However, high-quality serum can only be obtained after processing, which can make the testing effect more accurate. Generally, obtaining high-quality serum samples is accomplished using the coagulant and separation gel in the blood collection tube, because if the blood is not subjected to coagulation promoting treatment, it needs to wait for a long time in the natural state, which is not conducive to improving efficiency and subsequent testing tasks. Therefore, the following will focus on the role of coagulant promoters to give you a detailed introduction, which can also be clearly judged during the later use process.       1、 Principle of coagulant accelerator       In fact, the mechanism of coagulation promoting reaction is relatively simple, mainly due to the presence of coagulation factors in the blood, which can quickly activate, promote the formation of thrombin and fibrin blocks, accelerate coagulation, and cooperate with separation gel to quickly achieve separation. However, attention should be paid to the standardization of the use of coagulants, otherwise incomplete coagulation and hemolysis of blood samples may easily occur.   (Coagulant accelerator)       2、 Coagulant effect       It is used in the medical field, mainly by evenly spraying it onto the inner wall of a test tube to promote blood coagulation. Generally, blood can completely coagulate within about 5 minutes after being exposed to coagulants, and high-quality serum can be obtained through centrifugation, which solves the problems of blood cell rupture, hemolysis, and fibrin precipitation, and can quickly meet the needs of outpatient testing.       3、 Quality standard of coagulant       The main criterion for determining the quality of a coagulant promoting agent is the length of coagulation time of the blood after contact with the coagulant promoting agent, which is fast and short, demonstrating that the coagulant promoting effect can also reach the optimal state. In addition, observe the serum precipitated after blood coagulation. If the serum is clear, clear, or does not exhibit hemolysis, its quality is naturally reliable.       Desheng is the only supplier of a full range of blood collection additives in China. In addition to producing coagulant promoting agents and high-efficiency coagulant promoting powder, customers can also choose and customize according to their needs. In addition, the company has a specialized foreign trade department, which can achieve one-on-one communication with overseas customers, supply goods, and ensure that customer rights and interests are not damaged. Currently, the supply of blood collection additives such as serum separation gel, EDTA dipotassium, heparin sodium, and other products has signed contracts with multiple companies at home and abroad, with reliable quality. If you are interested, please click on the website to inquire about details and purchase!

Additive content of vacuum blood collection tube       As a common reagent in test tubes, blood collection additives have many types. Although they can be added to test tubes for use, their effects vary. For example, the added separation gel can effectively separate serum and blood clots, while anticoagulants can prevent blood clotting. In clinical practice, these different additives are usually applied to different test items.       Since there are differences between their functions and testing items, their respective addition levels must also be different. Therefore, let's take a detailed look at their addition levels, so that in the later operation process, we can also avoid results errors caused by excessive or insufficient content.       1、 Serum gel content       Serum separation gel is commonly used in test tubes, mainly for the purpose of extracting high-quality serum. The added content of serum separation gel is 0.75-1.1ml per test tube, and 0.8-1.2g of separation gel is added. If the diameter of the test tube is 16 ㎜, the amount of glue added should be above 1.0-1.2g, which can be adjusted according to the actual situation.   Anticoagulant - heparin sodium       2、 Anticoagulant       1. Content of heparin sodium and heparin lithium       Heparin is extracted from the intestinal mucosa of pigs and used as a natural anticoagulant. It can be made into heparin sodium or heparin lithium for use, with different levels of addition. The industry standard for the added content of heparin lithium is 9.4 IU-28 IU units per milliliter, while the standard for the addition of heparin sodium is 12 IU-30 IU units per milliliter. However, these are standard reference values given by the industry, and are usually added according to actual conditions during routine use of test tubes. Typically, 15-25 IU of heparin is added per milliliter of blood.       2. EDTA II and III potassium content   The content of potassium EDTA is usually determined based on the amount of blood drawn. According to the requirements of the Medical Committee, the content of potassium EDTA or potassium EDTA in each milliliter of blood is 1.5-2.2 mg, with an intermediate value of 1.8 mg/ml taken when preparing the reagent. Its content is different from that of heparin, and the measurement method is also different. Heparin is calculated based on its potency, while EDTA is measured by weight. Note that the two should not be confused.       3、 Coagulant content       Due to its unique performance, spraying on the inner wall of the test tube can promote rapid blood coagulation. 20-30 ul of coagulant can be added to a 2-5ml blood test tube. If the blood collection volume of the test tube exceeds 5 ml, the content of the coagulant needs to be adjusted and increased.       As a raw material supplier of blood collection additives, Desheng has reliable quality. It is supervised and sold by professional research and development departments and quality departments. It also has personnel to provide one-on-one service during customer use to ensure user satisfaction. If you have any interest, please click on the website to inquire about the details and purchase!

Nowadays, with the popularization and use of vacuum blood collection tubes, blood collection tube additives have also become hot products.Due to the different raw materials and production technologies of various manufacturers, their quality has also become uneven. So the following will focus on introducing the methods of adding blood collection tube additives to the test tube, which can also help you to use it for reference.   1. Serum separating gel filling Serum separation gel can be added by machine or manual. If it is produced in large quantities, it is generally added by machine. The addition steps are: (1) Put the separating gel into the hopper of the automatic or semi-automatic gel adding machine, and cover the hopper after the colloid is leveled. (2) Exhaust the air bubbles. After adding the gel, place the test tube with the gel upright for 8-12 hours, and then seal it and evacuate it. If air bubbles appear, use a centrifuge at 800-1200g centrifugal force for 2-5 minutes to expel air bubbles. (3) Stand still, no matter adding gel or extracting a vacuum, the thixotropy of the separation gel will temporarily decrease during the centrifugation process, so the test tube should be placed for more than 1 hour after adding gel and centrifuging.   2. Anticoagulant addition Since there are many types of anticoagulants, including heparin sodium, heparin lithium, EDTA K2, EDTA K3,EDTA 2Na,etc.Their addition methods have many similarities, so let’s take heparin sodium and heparin lithium as an example. 1. Machine addition: (1) Cleaning: Before using the machine, clean the utensils and delivery pipes, first rinse with deionized water, then spray with 80% alcohol for cleaning, then use more than 99% ethanol for secondary cleaning, and then use hot air Just blow dry. (2) Machine adjustment: determine the quantity or volume of heparin sodium or heparin lithium that needs to be added according to the volume of the blood collection tube to be produced, adjust the flow regulator of the machine to an appropriate value, add 10-100 test tubes, and randomly check whether the dosage meets the requirements. 2. Manual addition: (1) Clean the containers and tools prepared for dispensing heparin sodium or heparin lithium solution, the method is the same as that of the machine. (2) Dispense heparin sodium or heparin lithium solution into cleaned containers and distribute them to operators together with cleaned and adjusted pipettes. Pay attention to adjust the scale of the pipette to ensure that the added solution meets the specified requirements. (3) Use a pipette to add heparin sodium or heparin lithium solution into the blood collection tube, and confirm the amount added and perform random inspection.   As a raw material supplier of blood collection tube additives, Desheng can provide a full range of products, including serum separation gel, heparin sodium, heparin lithium, EDTA K2, EDTA K3,EDTA 2Na, siliconizing agent, sodium citrate, etc. These products are of analytically pure grade and can meet most of the experimental requirements. If you are interested, welcome to consult!

Serum separating gelWhat are the requirements for blood sampling additives?       In the laboratory of a hospital, you can see various test tubes. These tubes are not only used to store blood, but also can serve as an auxiliary test. Why do you say that? This is because reagents are added to it, such as commonly used serum separation gel, EDTA dipotassium, heparin sodium, heparin lithium, etc. What are the requirements for the use or addition of these blood collection additives? Below is a detailed explanation for everyone.       1、 Serum separating gel       First of all, there are requirements for temperature during the use process. Due to low temperature and increased viscosity, it may be difficult to add glue. The recommended temperature range is between - 20 -+90 degrees. If it is too low, you can also use a water bath for heating treatment. In addition, there are also requirements for the amount of separation gel added to the test tube, with a standard addition amount of 0.8-1.2g. For a tube with a diameter of 16mm, the amount of gel added should be above 1.0-1.2g.   Serum separating gel         2、 Anticoagulant       There are many types of anticoagulants. Let's take heparin sodium, heparin lithium, and EDTA dipotassium as examples to highlight the following requirements.       1. Heparin sodium, heparin lithium       The requirement is mainly for use in test tubes. To ensure sufficient anticoagulation of blood, it is necessary to slowly invert and mix for 5-8 times immediately after the completion of blood collection. Especially when the blood collection environment is high, if insufficient anticoagulation is not possible, it can easily lead to local coagulation. In addition, due to its non irreversible anticoagulation, it is necessary to complete the test within 6 hours after blood collection, and cannot be placed on hold for a long time, otherwise the results are prone to errors.       2. EDTA dipotassium       The requirement in testing is that after collecting the blood sample, it should be inverted 5-8 times as soon as possible to prevent the formation of small blood clots. It is also non irreversible anticoagulation like heparin, so it is required to complete the test within 24 hours. In addition, there are also requirements for the amount of potassium EDTA added, adding 1.5-2.2 mg of potassium EDTA solution per milliliter of blood. When used with other reagents, the addition requirement is to add 1.2-2.0 mg of potassium EDTA solution per milliliter of blood.       3、 Coagulant accelerator       The main requirement is to ensure that the clotting time is around 5-15 minutes before centrifugation. Direct centrifugation is not allowed, which can easily cause fibrin filaments to precipitate, and the detection effect is poor. Moreover, there are requirements for the addition amount of coagulant promoting agents. The addition standard is 20-30 Ul, which can promote the coagulation of 2-5 ml of blood. If the ambient temperature is too low or the blood collection volume is too high, it is necessary to appropriately increase the addition amount of coagulant promoting agents.       As a professional supplier of blood collection additives, Desheng has established its own reputation and image in the Chinese market, and is also the only manufacturer of a full range of blood collection additives. It can provide one-stop procurement for customers without having to travel around. If you have any interested parties, please click on the website for details!

  Will blood sampling additives affect test results?       With the advancement of medical development, clinical testing technology has also been improved, and the corresponding biochemical testing index requirements have become strict. As an important reagent in testing, the appearance of blood sampling additives has effectively improved the overall testing level. Currently, the additives for blood sampling appearing on the market include various categories, such as serum separation gel, heparin sodium, heparin lithium, EDTA dipotassium, tripootassium, disodium, coagulant enhancer, silicifying agent, etc. Do so many additives have any impact on the test results? Let's focus on this aspect and introduce it to you.       In fact, whether additives have an impact on the test results is related to their performance and use:       1、 Serum separating gel        In a test tube, it can achieve rapid turnover with the aid of a centrifuge, separating serum from blood cells, not only ensuring the stability of serum chemical components, but also facilitating the effective extraction of high-quality serum samples by medical personnel. However, relying solely on the function of an external force centrifuge is not enough. It also depends on its own performance. Its specific gravity should be maintained between 1.045-1.065g/cm3, exhibiting physiological inertia, and having good thixotropy can effectively ensure the smooth testing process and unaffected testing results. (EDTA dipotassium anticoagulant)       2、 Anticoagulant       As a frequently used reagent in clinical testing, anticoagulants include various types, such as heparin sodium, heparin lithium, EDTA potassium salt, and disodium salt. When they come into contact with blood in a test tube, they can prevent blood coagulation without destroying the components of the blood sample. If you want to ensure that test results are not affected, you need to pay special attention to their performance indicators:       1. Heparin salt: The main performance indicators for measuring heparin salt are its average molecular weight and potency. When added to a test tube, it must reach a molecular weight of 15000 and a potency of 150-180 IU. When using, pay attention to the dosage added, which will have no impact on the test results.      2. EDTA potassium salt: This is an internationally recognized ideal anticoagulant reagent, but its effectiveness depends on its purity and stability. Reagent raw materials should be of analytical purity, maintained above 99%, and have strong stability when in contact with other reagents or blood, which can also ensure the accuracy of the test results.       3、 Coagulant accelerator, silicifying agent       Coagulant promoters and silicifying agents are also commonly used in test tubes. One is to promote rapid blood coagulation, and the other is to treat the tube wall to ensure no wall sticking. The direct factor that can affect the test results is poor quality. If the coagulant does not play a strong role, the blood cannot completely coagulate, and half of the coagulation generally does not coagulate during the final test, so the results are undoubtedly inaccurate. The same is true for silicified agents. When blood remains on the wall of the tube, causing damage to blood cells, the overall result will be biased.       Therefore, from the above introduction, the performance of blood sampling additives is a key factor affecting the results. If you want to use high-quality additive products, you can choose Desheng. It has a professional research and development team and a quality inspection department, which will continuously track foreign export products to ensure customer satisfaction. Interested parties are welcome to click on the website for consultation!