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Wuhan Desheng Biochemical Technology Co., Ltd
About Us

Wuhan Desheng Biochemical Technology Co., Ltd

Company IntroductionWuhan Desheng Biochemical Technology Co., Ltd. is founded in 2005, located in Wuhan, China, specializing in R&D, production and sales of blood collection tube additives and homology chemcial reagents.We are mainly engaged in blood specimen pretreatment reagents including anticoagulant series: lithium heparin, sodium heparin, EDTA K2/K3, blood specimen coagulant series: powder and liquid of blood clot accelerator etc; blood specimen pretreatment series: serum separating gel ...
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China Wuhan Desheng Biochemical Technology Co., Ltd

2005

Year Established

10000000 +

Annual Sales

>100 +

Employees

news
It is important to pay attention to these issues when Use Carbomer gels
2020-11-12
Carbomer is a white, loose powder with strong hygroscopicity and acidity. It is soluble in water, glycerin, and ethanol. It has the characteristics of a colloidal solution. The usual concentration is 0.1% to 3%. Due to the low viscosity, when the alkali is neutralized, the viscosity gradually rises as the macromolecules gradually dissolve, forming a clear solution when the mass fraction is low, and a translucent gel when the mass fraction is large. Carbomer not only It is widely used in daily chemicals. It can also be used as a promising new pharmaceutical excipient. The following introduces some problems that should be paid attention to when using carbomer to make gels.   Carbomer model selection   According to the different uses of the prepared gel, choose different types of CP. CP934 has the strongest adhesion and is more suitable for cavity administration, such as commonly used nasal bioadhesives, vaginal bioadhesives, rectal bioadhesives, oral Containing or oral bioadhesives, etc. CP940 has strong adhesion to the skin surface and good spreadability, which can prolong the residence time of the drug on the skin surface and increase the effect of the drug. It is widely used in skin diseases and can absorb tissue exudate, which is beneficial to the exclusion of secretions. Suitable for treatment of seborrheic skin diseases. CP1342 has strong ion resistance, which is more suitable in the presence of electrolyte.   Carbomer quality score selection   According to the different viscosity of the required gel, generally choose the mass fraction of CP from 0.5% to 3%. When formulating skin care products, the final mass fraction of CP should be controlled to be less than or equal to 0.8%. When it is greater than 0.8%, it is easy to form a film and the skin feels bad. In order to achieve the desired consistency, CP can also be used in combination with carmellose, sodium alginate, polyethylene glycol, polyvinylpyrrolidone, etc. to achieve a synergistic thickening effect.   Choice of pH regulator   In order to make CP form a more stable gel, its pH needs to be adjusted from 5 to 11. The CP neutralizer can be sodium hydroxide, potassium hydroxide, potassium bicarbonate, borax and triethanolamine in polar systems, and laurylamine and amine stearate can be used in non-polar systems.   Choice of moisturizer   Since the gel will lose water during storage, it will dry and harden, forming a dry micelle which is not easy to spread. It is necessary to add a moisturizer to maintain the stability of the dosage form and prevent the skin from drying out. Commonly used humectants include polyols such as glycerin and propylene glycol.   Selection of preservatives   Carbomer itself has no nutrition and does not support the growth of bacteria and molds, but it cannot prevent the growth of bacteria and molds using the nutrients present in the gel system, so different preservatives should be selected according to the situation, such as sodium benzoate and p-hydroxybenzene Formate (parabens) and ethanol, etc. Preservatives can also be combined to reduce dosage and achieve synergistic antibacterial effects.   As a professional carbomer manufacturer, Desheng can provide two models of carbomer 940, carbomer 980, high-quality products and services, and higher cost performance than other manufacturers. Desheng has always been favored by customers. This is definitely the driving force for Desheng to move forward. In order to thank new and old customers, we are now launching = a year-end promotional event, the price is as low as 100 yuan/kg, and the opportunity is not to be missed. Please come to consult and order!
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Latest company news about It is important to pay attention to these issues when Use Carbomer gels
TMB, luminol, phenolphthalein - forensic blood test
2021-02-24
Blood test is one of the most common forensic physical evidence tests in criminal cases. Blood chromogenic agent is used to quickly detect potential blood stains, blood fingerprints, blood fingerprints, etc. at the scene of the crime, which can provide important clues and basis for quickly restoring the scene of the crime and case investigation. TMB, luminol and phenolphthalein are common blood stain color reagents. They are the right assistants of forensic examination and evidence collection.   The full name of TMB is 3,3 ', 5,5' - tetramethylbenzidine, cas54827-17-7. TMB is a new and safe chromogen reagent, which is widely used in clinical laboratory, criminal detection and other fields.   TMB development method is a commonly used blood test method. Its principle is that the blood contains catalase and hematoporphyrin, which can catalyze hydrogen peroxide to release primary oxygen. Primary oxygen reacts with tetramethylbenzidine (TMB) to produce tetramethylbenzidine blue, which makes the blood appear turquoise blue.   Luminol, also known as luminol, cas521-31-3. Luminol can react with a variety of oxidants, which has high quantum yield and good water solubility.   Luminol luminescence method is a very common blood test method, its principle is that blood contains hemoglobin, hemoglobin contains iron, and iron can catalyze the decomposition of hydrogen peroxide into water and monooxygen, monooxygen can oxidize luminol, showing blue-green fluorescence.   Luminol luminescence method is extremely sensitive. Even if the criminal has cleaned up the blood on the scene, forensic and other criminal investigators can still rely on luminol to make the blood invisible. Luminol luminescent method to restore blood is also the most common and exciting scene in criminal investigation movies and TV series.   Phenolphthalein, CAS 77-09-8. Phenolphthalein is a kind of weak organic acid, which is colorless in acidic and neutral solutions, purplish red in alkaline solutions, orange in very strong acidic solutions and colorless in very strong alkaline solutions. Human blood is alkaline, so phenolphthalein can appear red when it meets with blood.   Chemical reagent coloration is a common method of blood test in the field of criminal investigation. TMB, luminol, phenolphthalein and other chemical reagents are useful weapons to find the clues of cases, and become the right assistants of forensic staff. Desheng is an old manufacturer of chemiluminescence reagents. Besides the above TMB and luminol luminescent substrates, Desheng can also provide isoluminol and six acridine esters. Welcome to order!
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Latest company news about TMB, luminol, phenolphthalein - forensic blood test
How to choose blood anticoagulant sodium fluoride heparin sodium citrate EDTA
2021-07-20
Sodium fluoride heparin sodium citrate EDTA is a commonly used additive for vacuum blood collection tubes, which is commonly used for blood anticoagulation. Although the current vacuum blood collection tubes work to a large extent by design and are generally considered to be routinely recommended practices, laboratory staff must be aware of the different applications of blood collection tube additives sodium fluoride heparin sodium citrate EDTA Be particular. Which of the sodium fluoride heparin sodium citrate EDTA is used as the blood collection tube additive is particularly important. 1) Sodium fluoride Sodium fluoride inhibits the glycolytic enzyme enolase and is used to limit the in vitro consumption of glucose by cells in the collected blood samples. In fluorinated unseparated blood samples, since the upstream enzyme converts glucose into glucose 2-phosphate, glucose is still metabolized at a rate of about 5% to 7% per hour at room temperature. It may take 4 hours to completely inhibit glycolysis in a fluorine-containing test tube at room temperature. It should be noted that sodium fluoride may have enzyme inhibitory activity and is not suitable for enzyme immunoassay. 2) Heparin Sodium Heparin Lithium Heparin is a highly charged biomolecule-polymerized glycosaminoglycan. It can prevent blood clotting, but can be co-purified with nucleic acid according to the preparation method used. It is a well-known serum protein polymerase chain reaction inhibitor. If blood is collected for polymerase chain reaction analysis, it can be digested with heparinase. 3) EDTA and citrate Both EDTA and citrate are used as anticoagulants. The use of different coagulants depends on the ongoing downstream medical/biochemical analysis-such as plasma enzyme levels, etc. EDTA is a complexing agent and polymerase chain reaction inhibitor because it can complex Mg2 + ions, but extraction procedures usually result in most of the EDTA being deleted. If you want to amplify from whole blood, citrate will effectively avoid this problem. If you think there is a problem with the inhibition of the sample polymerase chain reaction, please add a known polymerase chain reaction positive sample (such as a plasmid) with the extracted target to see if it diverges. 4) Summary Blood collection tube additives are raw materials for biochemical reactions in medical equipment. Improper use by non-professionals or due to manufacturing-related problems, interference with test results related to blood collection tubes may have some impact on patient results, reduce laboratory efficiency, delay test results, and increase each time due to re-collection and re-testing The cost of testing. The optimization of blood collection tubes, the professional production capacity and standardization of suppliers are essential for reliable test analysis. Desheng Biochemical provides product support for the entire industry chain of blood collection tube additives. Sodium fluoride heparin sodium citric acid EDTA is a conventional product of Desheng Biochemical. This reminds diagnostic companies and laboratory workers to be vigilant to prevent the adverse effects of blood collection tube problems on clinical laboratory determinations.
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Latest company news about How to choose blood anticoagulant sodium fluoride heparin sodium citrate EDTA
Biological buffer taps quality supply,N-Tris(Hydroxymethyl)Methyl-3-Aminopropanesulfonic Aci manufacturers
2021-01-17
N-Tris(Hydroxymethyl)Methyl-3-Aminopropanesulfonic Acid (TAPS) is a white powder with molecular formula c7h17no6s, molecular weight 243.278, CAS number 29915-38-6, and TAPS buffer is also called tabs Buffer, a sulfonic zwitterionic buffer, is widely used in biochemistry and molecular biology. Its pH buffer range is 7.7-9.1, soluble in water (25g / 50ml) and PKA is 8.4. It is commonly used in biochemical diagnostic kit, DNA / RNA extraction kit and PCR diagnostic kit in clinical diagnosis. In biological and biochemical experiments, it is often necessary to use the medium with stable pH range, so buffer reagent is often used. The traditional buffer composed of weak acid and its salt or the mixture of weak base and its salt has many kinds, low price and easy to obtain, but it has some shortcomings, such as insufficient buffer capacity, affecting the biochemical reaction process and so on.   Sulfonic acid type biological buffer is an ideal biochemical buffer at present, which has many outstanding characteristics superior to the traditional buffer. Taps sulfonic biological buffer is often used as a buffer system in DNA screening system, and can also be used as a buffer component of RNA samples; it is suitable for electron transfer and phosphorylation research of chloroplast thin layer preparation; it can protect oxyhemoglobin from oxidation to methemoglobin during freeze-drying; it can also be used as a background electrolyte for protein microanalysis by capillary zone electrophoresis.   Desheng biochemical, as an old manufacturer of in vitro diagnostic reagents, produces taps buffers with high purity, good quality, stable buffering performance and little impact on the experimental results. In addition to taps, we can also provide other biological buffers such as Tris, HEPES, caps, mops, as well as various in vitro diagnostic reagent raw materials such as chemiluminescence reagent, chromogen substrate, blood collection vessel additive, etc.   Desheng biochemical friendly tips:   1. Protection should be done according to the situation of the test. Wear necessary protective tools, test clothes, rubber gloves, protective mask, gas mask, etc. according to the possible dangerous accidents. Before the experiment, we should pay attention to clean up the potential safety hazards around the test site. Check whether the test device, drugs and related articles do not meet the requirements.   2. Follow the nature of chemicals and the law of chemical reaction to avoid the experimental accidents caused by improper operation. The matching reaction device should be selected according to the nature and process of chemical reaction, and the necessary safety measures should not be omitted.   3. To estimate the risk of the experiment, attention should be paid to the following types of experiments: ① unknown reactions and operations; ② experiments with multiple risks (such as fire, toxic and harmful gases, etc.); ③ experiments under harsh reaction conditions (such as high temperature, high pressure, etc.).   4. Take accident prevention measures and check: be familiar with the position and operation method of switches and fire extinguishers around the experimental environment.   5. Post treatment: pay attention to the cleaning of the experimental platform, the arrangement of articles, the treatment of waste liquid, etc.
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Latest company news about Biological buffer taps quality supply,N-Tris(Hydroxymethyl)Methyl-3-Aminopropanesulfonic Aci manufacturers
What Did They Say
Tony
Tony
As a distributor of hospital agent , your Blood Collection Tube Additives is very suit for my needs , i think we have establish a good business with each other , thank you !
As a distributor of hospital agent , your Blood Collection Tube Additives is very suit for my needs , i think we have establish a good business with each other , thank you !
William
William
Received the sample order and passed the test. Thank you for all your efforts. You are a reliable partner! We will continue to cooperate with you in the future.
Received the sample order and passed the test. Thank you for all your efforts. You are a reliable partner! We will continue to cooperate with you in the future.
Marinel
Marinel
The biological buffer produced by Desheng Company has high purity, good water solubility, and a white powder appearance. The price is affordable, and the after-sales service is very enthusiastic, helping us to use the biological buffer correctly and efficiently. It was a very good experience, looking forward to the next collaboration!
The biological buffer produced by Desheng Company has high purity, good water solubility, and a white powder appearance. The price is affordable, and the after-sales service is very enthusiastic, helping us to use the biological buffer correctly and efficiently. It was a very good experience, looking forward to the next collaboration!
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