Flex & Rigid-Flex Manufacturing Process for Simplifying Interconnection

PCBs (Printed Circuit Boards) can be classified into rigid PCBs and flex PCBs and the former can be classified into three types: single-sided PCB, double-sided PCB and multi-layer PCB. According to quality class, PCBs can be classified into three quality classes: Class 1, Class 2 and Class 3 among which Class 3 features the highest requirement. Difference on PCB quality class leads to differences in terms of complexity and test and inspection method. Up to now, rigid double-sided PCBs and multi-layer PCBs account for the relatively large applications in electronic products and flex PCBs are sometimes applied in some circumstances. Therefore, quality inspection issues will be discussed focusing on rigid double-sided and multi-layer PCBs in this article. After PCB fabrication, inspection has to be carried out in order to determine whether the quality is compatible with design requirement. It can be put that quality inspection is the important insurance of product quality and smooth implementation of subsequent procedures.PCB inspection standard comes primarily in the following aspects:a. standards made by each country;b. military standard of each country;c. industrial standard such as SJ/T10309;d. PCB inspection operation instruction enacted by device supplier;e. technological requirement labeled on PCB design drawings.For PCBs that have been determined as a key board in a device, besides regular inspections, those key characteristics parameters and indexes have to be focused and inspected from head to toe.Inspection ItemsNo matter what type of PCBs, they have to go through similar quality inspection methods and items. Based on inspection method, quality inspection items usually include visual inspection, general electrical performance inspection, general technological performance inspection and metalized via inspection. Visual inspectionWith the help of ruler, vernier caliper or magnifying glass, visual inspection is simple to be carried out. The inspected content includes:a. Board thickness, surface roughness and warpage. b. Dimensions of appearance and assembly, especially assembly dimensions compatible with electric connectors and lead rail.c. Integrity and clearness of conductive patterns and existence of bridging short circuit, open circuit, burr or voids.d. Surface quality, existence of pit, scratch or pin holes on printing traces or pad. e. Positions of pad vias and other vias. It should be inspected that whether vias are missed or inaccurately punched, whether via diameter is compatible with design requirement or not and whether there are nodules and voids.f. Pad plating quality and extent of firmness, roughness, brightness and void of bulge defect.g. Coating quality. Whether plating flux is even and firm and position correct and whether flux is even and its color meets concerning requirement. h. Character quality such as whether theyre firm, clear and clean with no scratch, penetration or disconnection. General electrical performance inspectionThere are two kinds of tests under this type of inspection:a. Connecting performance test. During this test, multimeter is generally applied to inspect the connectivity of conductive patterns with focus on metalized via of double-sided PCB and connectivity performance of multi-layer PCB. For this test, ALLPCB provides general inspection before each fabricated PCB leaves its warehouse in order to ensure the implementation of its basic functions. b.Insulating performance test. This kind of test aims to inspect insulating resistor on the same plane or between different planes in order to ensure the insulating performance of PCB. General technological inspectionGeneral technological inspection covers solderability and plating adhesion inspection. For the former, wetting performance of solder to conductive patterns is inspected. For the latter, it can be inspected by qualified tips that are first sticked to plating plane to be inspected and then are pulled off quickly after even pressing. Next, plating plane should be observed to ensure whether fall-off takes place or not. Furthermore, some inspections can be selected based on practical situations such as copper foil anti-falling intensity and metalized via anti-pulling intensity. Metalized via inspectionQuality of metalized vias plays a role of extreme significance for double-sided PCBs and multi-layer PCBs. Lots of breakdown happening to electric module or even the whole device lies in quality issues of metalized vias. Therefore, its quite necessary to pay more attention to the inspection of metalized vias. Metalized via inspection covers the following aspects:a. Metal plane of via wall should be complete, smooth and void of empty holes or nodules. b. Electrical performance inspection should be carried out in accordance with short circuit and open circuit of pad and metalized via plating plane, resistance between via and leads.c. Resistance change rate of vias shouldnt be over 5% to 10% after environmental test.d. Mechanical intensity refers to adhesive intensity between metalized via and pad. e. Metallographic analysis test is responsible for inspection in terms of plating plane quality, thickness and uniformity of plating plane, and adhesive intensity between plating plane and copper foil.Metalized via inspection usually comes in combination of visual inspection and mechanical inspection. Visual inspection is to observe PCB with it placed under the light and complete and smooth via wall is capable of reflecting light evenly. However, via wall containing nodules or voids wont be so bright. For volume manufacturing, inspections should be implemented by on-line inspection equipment such as Flying Probe Tester.Owing to complicated structure of structure of multi-layer PCBs, once problems are observed in the process of subsequent unit module assembly testing, its difficult to position breakdowns quickly. As a result, inspection of their quality and reliability has to be very strict. Apart from regular inspection items mentioned above, other inspection items include the following parameters concerning resistance of conductor, resistance of metalized vias, short circuit and open circuit of inner layers, insulating resistance between all lines, adhesive intensity of plating plane, adhesion, anti-heat shock, impact resistance to mechanical shock, current intensity etc. Each index has to be obtained through the application of professional equipment and methods. ALLPCB has a special Department handling circuit boards quality supervision, inspection and quarantine. We carry out Electrical Test on all of our printed circuit boards, and ship out only those passed the test. If unfortunately some of your boards failed this test, we will schedule reproduction immediately. Except for standard Electrical Test, we also offer Bed of Nails Fixture Test and Flying Probe Test. Intested in getting quality guaranteed circuit boards from us? RELATED QUESTION As a mechanical engineer, what are some of the real world problem that I can tackle after I graduate? There are way too many things that can either improved, created or redesigned.I can give you atleast 20 problems off hand.Mechanical Engineering encompasses several fields. I am a work in Bio-medical Engineering and the number of problems that require a mechanical engineers input are way to many to list here. I can give you a few examples.Design of Assistive Aids to aid visually impaired children.Rehabilitation Equipment to help in post accident healing. Design and Fabrication of implantsRe-designing machines that are used for fabricationRobotics for Surgery.There is no dearth of problems. Just look around and you will find several things you can work on. Jot them down. Analyse the needs based on difficulty and your interest in the problem. Choose the most relevant need that interests you.Start solving it

In case youre wishing to promote your event or organization, theres no difficulty youve imagined about the utilization of banners and signage. Various people dont know that there are different varieties of signs, and not every one of them is made equivalent.Various varieties of banners and flags have several uses, and each sort has its own favorable circumstances and impediments. Along these lines, were going to cover two of the most generally used and cherished sorts of signage (flex and vinyl printing), what the advantages and disadvantages are of each, and how you can choose which one you ought to utilize advance your business.Gain proficiency with the contrast among vinyl and flex printing make a point to look at our Negisign System Company in India for all your flag and standard printers needs!What is Flex Printing?Flex material is tempered and more flexible than vinyl. Flex material can be printed on and recolored utilizing particular industrial printers. These printers essentially work like some other inkjet component, yet the printers are structured explicitly to recognize flex material.At first look, flex and vinyl printing can appear to be fundamentally the same as; anyway, they usually have many uses and the materials will show up somewhat unique under close estimate.When flex material has been printed on it leads to being attached t-shirts, blazers, sweaters, and flex sheets. Flex material is commonly added to these finished results by applying heat with excellent devices or presses that ensure the material is attached to the surface.WHAT IS FLEX BOARD?Flex board is a material that is structured explicitly to acknowledge the flex material holding. Flex board printing is the most secure and most solid approach to apply your printed flex material to a standard or a sign as opposed to attire or other comparable mediums. Vinyl printing is presumably the most generally known variety of banner and signage printing used today. When you use vinyl, you will send your sign producer an example or framework with the hues you might want to use. The vinyl is accumulated into a unique machine and will be cut into the example you have chosen. Earlier, vinyl couldnt be recolored with an apparatus, however, new printers have entered the market that can print onto either vinyl or flex materials.When your vinyl is cut, it must be connected to a suitable surface. While flex material is commonly connected to a medium utilizing heat, vinyl just should be stuck onto your sign or standard utilizing glue joined to the vinyl material. The application works simply like a band-help, which needs the glue covers dismantled off before being connected to a surface. Shockingly, vinyl pennants are inclined to wrinkling, however, figuring out how to get wrinkles out of vinyl standards is moderately simple.WHAT IS A VINYL POSTER?Flex material is the most well-known sort of printing material used for dress, however, it has been getting on for signage as of late. Vinyl, is commonly just used on signs, standards, and comparable surfaces to which that cement dependably sticks. Vinyl publications are made of flexible PVC, and the vinyl that is connected to them can adhere to the blurbs for quite a long time while never appearing of wear.Last Notes on Flex and vinyl printingAt last, the medium and material you use for your signs and standards are up to you. The most important thing to remember is that flex material is generally used for apparel and can be slightly more costly than vinyl. In the meantime, vinyl is commonly used for signs and smooth surfaces RELATED QUESTION How much power is consumed by a 3-ph welding machine? There are different types of welding machines, even in 3ph there are many types and depending on them and their usage current differs. @1 PF , 50hz,415V is 13A at the supply side this is varied at the secondary side it may go up more than 250A@30V (Welding machine has transformers inside). For more details you may refer to any welding manuals. For your ease I am pasting these, it also has parts description.

　　Author：MeCan Medical–ultrasound machine manufacturersThe hospital's modernization is inseparable from various advanced medical equipment, and the use of advanced medical equipment helps doctors to better judge the patient's condition. However, for medical equipment, high precision, high -priced, complex maintenance, shorter update cycle, the installation and use environment of equipment also requires relatively high requirements.In some large hospitals, medical equipment, as a fixed assets of the hospital, occupies more than half of the total asset value, and it is undoubtedly of great significance for the management of medical equipment. Preventive maintenance of medical equipment is the basis for managing medical equipment, extending the service life of medical equipment, and improving the accuracy of medical equipment diagnosis of diseases.Therefore, it is of great significance to improve the attention of medical equipment maintenance and establish and improve the management system of medical equipment in the hospital.Preventive maintenance concept: Preventive maintenance means that within a certain cycle, the device can systematically check, detect, maintain, and replace the wear parts, so that the equipment can work normally. Through preventive maintenance, the fault rate of the equipment is reduced, the maintenance time of maintenance is reduced, and the work of various tasks will be carried out smoothly.The necessity of implementation of anti -maintenance: The maintenance of medical equipment after use is essential. The implementation of preventive maintenance is to regularly maintain medical equipment. By maintaining the equipment to familiarize the structure of the device, understand the current equipment. During the maintenance process, the maintenance personnel accurately record the important conditions such as the equipment indicator and the work parameters, and then can make a rapid judgment of the fault position after recording the contrast after the medical equipment fails.Through preventive maintenance, the situation of the easy -to -wear parts of medical equipment, timely purchase parts and replace it, thereby reducing the incidence of medical equipment failure, avoiding normal examination and treatment of patients due to medical equipment failure or medical accidents. Implementation of preventive maintenance will allow medical equipment to run for a long time in a healthy state, and the service life will be extended. If you want to know more, please pay attention to the "Prun Medical Device Network", we will regularly update some new content for everyone to browse and read.

　　Author：MeCan Medical–ultrasound machine manufacturersAt present, the epidemic is still spreading globally, and international trade and economic growth have stalled. Although the exports of Chinese medical equipment remain stable as a whole, they need to be alert to relevant risks and challenges. The relevant person in charge of the Medical Institution Department of the Medical Insurance Chamber of Commerce pointed out that in the short term, due to the needs of epidemic prevention and immunity, the global market has increased its dependence on the supply chain of Chinese medical device.In the long run, the epidemic has become a catalyst for reshaping the global industrial structure. With the introduction of policies in various countries, international competition will intensify, and the competition between Chinese medical devices in the global market will be more intense.In terms of market risks, the global economic recovery will lower the ability of the international market to procure ordinary medical supplies. The surge in demand for epidemic prevention materials, coupled with the decline in the efficiency of the port work, has caused serious lag in the circulation of containers, bringing a sharp increase in international logistics costs, especially shipping. The rise in raw materials and labor costs, and the strengthening of the supervision of merchants by cross -border e -commerce platforms will further squeeze the export profits of the enterprise.In addition, due to international travel restrictions, it is difficult for engineers and sales staff to conduct promotion activities in overseas markets and after -sales service for some large -scale equipment exported equipment, and it is not conducive to market sales.Overseas market expansion also needs to focus on the impact of changes in international market regulations. For example, the European Union has implemented new medical device regulations (MDR) and in vitro diagnostic medical device regulations (IVDR), pay more attention to the clinical performance of the product, strengthen the traceability of medical device products, and pay attention to improving the transparency of patients.These will improve the management and restrictions on medical device products entering the European market accordingly, and put forward higher requirements for the industry's employees, which will bring about increased costs to Chinese export companies, extending certification cycle, and increasing compliance risks, etc. challenge.

　　Author：MeCan Medical–ultrasound machine manufacturersThe enzyme missionary instrument is commonly known as the enzyme -linked immunohistic detection instrument. It can be simply divided into two categories: semi -automatic and fully automatic, but its working principles are basically the same. The core of its core is a color meter, that is, the color method is used to analyze the content of the antigen or antibody. Clinical examination, biology research, agricultural science, food and environmental science. Let me introduce the application of enzyme -linked immune detector in pesticides and food.1. Fast diagnosis of animal epidemic.The enzyme -linked immune analyzer adopts the enzyme -linked immune adsorption measurement method and the corresponding reagent with a qualitative or quantitative animal disease diagnosis. Such as: pork blue ear virus, swine fever virus, pig pseudo -rabies virus, pig pseudo -rabies virus GE protein, pig ring virus, pork type encephalitis virus, pig mouth hoof disease 3ABC protein, pig mouth hoof disease virus IgG, pork fine virus, chicken chicken, chicken Bird flu, blue tongue disease, white spot syndrome, cattle infectious pleural pneumonia, cattle plague, cotton acne, and sheep acne detection.Second, pesticide residues.Organic phosphorus pesticides are commonly used in agricultural production in my country. Common types include methylmine, dichlorvos, oxygen fruit, phosphorus, and enemies. Most of them are highly toxic pesticides. By reducing the activity of cholthyne enzymes in the body, delayed neurotoxicity is caused, thereby achieving the purpose of eliminating pests. The enzyme -linked immune detector can be used to detect the methamidine content contained in fruits and vegetables.Third, food safetyThe enzyme -linked immune analysis method uses the special nature of the antibody and the corresponding antigen to detect the antibody contained in the food based on this. The immune enzyme method is to use specific enzymes as detection tags and reaction catalysts. The use of this method can be used to effectively avoid using radioactive elements during the detection process, or to conduct orientation and quantitative analysis of the detected objects. , Chemical residue, edible oil testing, water and wine beverage analysis, condiments, edible pigment, etc.At present, more automatic enzyme -linked immune detectors can be used for qualitative detection and quantitative detection. The detection only takes a few hours. It not only reduces the labor intensity of laboratory personnel, but also greatly improves the accuracy and repeatability of the determination. This is conducive to the further commercialization of ELISA technology in detection and analysis.

　　Author：MeCan Medical–ultrasound machine manufacturersAs one of the current effective epidemic prevention and control methods, nucleic acid extraction and testing are no stranger to everyone. Prior to this, the method of extracting the traditional nucleic acid was chemical cracking and cylindrical method. However, with the rapid development of gene diagnosis, genetically modified food detection, and personalized medical care, traditional nucleic acid extraction technology can no longer meet the needs of today's biotechnology. As a result, magnetic pearl nucleic acid extraction came into being.No. A commercialized reagent that used the magnetic bead method to extract DNA and successfully applied for patents in the United States appeared in 1998. The magnetic bead method first absorbs the free nucleic acid molecule to the surface of the magnetic particles by cracking the cells, while the protein and polysaccharides are left in the solution. Under the influence of the magnetic field, the magnetic particles are separated from the liquid to discard the liquid to eliminate the liquid Later, the purified nucleic acid molecules were obtained after being eluted.The magnetic bead method uses the principle of combining and dissipating the magnetic acid activity group with a magnetic granular activity group under certain conditions to avoid the loss of nucleic acid during the extraction process as much as possible, and it can also remove the interference substances in the specimen (such as hemoglobin The effects of bilirubin and lipid blood), obtain high -quality nucleic acid templates. With the development of magnetic bead method extraction technology, DNA extraction has really begun to achieve standardization, rapidness and automation.The kits based on the magnetic acid extractor of the Magnetic Pearl Method are also widely used. Nucleic acid extraction kit does not require any organic solvent and no need to repeat centrifugation. At present, it can extract high -quality DNA and RNA from full blood, serum, plasma, saliva, urine, feces, cerebrospinal fluid, tissue and cells, and shorter time. The recovery rate is higher. And it can be automated and uninvited through mechanical equipment.In addition, the principle of magnetic pearl method is safe and non -toxic, and does not use toxic reagents such as benzene and chloroform in traditional methods. Mainstream nucleic acid extraction methods at home and abroad.

　　Author：MeCan Medical–ultrasound machine manufacturersThe nucleic acid extract instrument is a supporting nucleic acid extract reagent from the motion to complete the sample nucleic acid extraction work. In the detection of the new crown, nucleic acid extraction is a very important step. At present, the extraction principle of nucleic acid extract instruments on the market is mainly divided into two types: magnetic bead method and membrane adsorption method, of which magnetic bead method occupies the mainstream market. So, what is the extraction step of the magnetic pearl nucleic acid extract instrument?Step 1: Add samples to the cracking solution.Step 2: In the cracking solution, the rupture cells release the nucleic acid to the cracking solution to transfer the magnetic beads to the cracking solution step 3: Fully mix the nucleic acid to adsorb the specific package on the surface of the magnetic beads.Step 4: Repeat the surface of the magnetic beads to remove impurities such as the unnecessary nucleic acid, protein or salt that are not needed.Step 5: Move the magnetic beads into the eluing solution and mix it fully. The nucleic acid is falling off from the surface of the magnetic bead and dissolved into the elution buffer.The magnetic pearl nucleic acid extract instrument is matched with different types of magnetic pearl nucleic acid extract reagents, and multiple samples are operated at the same time, which automatically separate the extraction and purification DNA/RNA from multiple samples such as blood, cells, tissues, viruses. The instrument uses a special magnetic stick adsorption, transfer, and releases magnetic beads to achieve the transfer of sample/magnetic bead/nucleic acid, avoiding liquid treatment, and increasing the degree of automation.Nucleic acid detection, as an important means of screening of new crown virus screening, is expected to maintain a high position for a period of time at home and abroad. The corresponding nucleic acid extract will be very strong in a considerable period of time. The operation is automated, fast, and simple, which provides a strong guarantee for the detection of new crown nucleic acid.

　　Author：MeCan Medical–ultrasound machine manufacturersNucleic acid extraction instrument is an instrument that uses a supporting nucleic acid extract reagent from the motion to complete the sample nucleic acid extraction work. It is widely used in various fields such as disease control centers, clinical disease diagnosis, blood transfusion safety, forensic identification, environmental microbial testing, food safety testing, animal husbandry and molecular biology research. In fact, with the normalized management of the epidemic, the nucleic acid extract instrument, as one of the commonly used equipment tested by various hospitals, has a higher frequency and the number of purchases has continued to rise. In fact, although everyone is familiar with the term of the nucleic acid extract instrument now, but it is very familiar with the term, but it is very familiar with the term of the nucleic acid extract instrument, but it is very familiar with the term, but it is very familiar with the term. I do nt know how to work and test the method of working principles. Let s take a closer look at the editor of Prank Medical Equipment.There are many classifications of nucleic acid extract instruments. In fact, the most commonly used is magnetic bead method. How does this method work? Magnetic pearl nucleic acid extract instrument is generally divided into two types: suction method and magnetic stick method. The specific operation process is as follows:First, suction method. The extraction of nucleic acids is achieved by fixed magnetic beads and metastasis liquids. Generally, the transfer of the robotic arm is generally controlled by the operating system.1. Crack. Add a cracking solution to the sample to achieve mixing and adequate reactions of the reaction solution through mechanical exercise and heating, cell cracks, and release nucleic acids.2. Adsorption. Add magnetic beads to the sample cracking solution and mix it in full. Use magnetic beads to adsorb nucleic acid under high salt and low pH value. Under the action of magnetic fields, the magnetic beads are separated from the solution. Mo the liquid out of the waste liquid tank and abandon the head.3. Washing. Remove the external magnetic field, add the new suction head to add the washing buffer, mix it fully, remove the impurities, and remove the liquid out of the magnetic field.4. Requesting. Withdrawing the magnetic field and adding the new suction head to add the elution buffer, fully mixed, the combined nucleic acid is separated from the magnetic bead, so as to obtain a purified nucleic acid.Second, magnetic stick method. By fixed liquids, the magnetic acid is separated to achieve the separation of nucleic acids. The principle and process are the same as the pumping method. The difference is the method of separation of magnetic beads and liquids. The magnetic stick method is to separate the magnetic beads from the waste liquid through the adsorption of the magnetic rod to the next step to achieve the extraction of nucleic acid.In fact, the characteristics of this magnetic pearl nucleic acid extract instrument is that it can achieve automation, high -throughput operations, safe and reliable operations, high efficiency, and pollution -free. Therefore, it is recognized by many buyers. When choosing a nucleic acid extraction instrument equipment, no matter which type of device is selected, you must have a basic understanding of it. You cannot judge the quality of the product from the price alone. For more product details, you can consult: 400-6656 -888.

　　Author：MeCan Medical–ultrasound machine manufacturersIn recent years, the nucleic acid extract in the principle of magnetic beads has become the mainstream nucleic acid extraction equipment. So, what are the advantages of magnetic pearl nucleic acid extract? The magnetic bead method nucleic acid extract instrument is based on the magnetic beads, using magnetic beads to adsorb nucleic acid under high salt and low pH, separates the characteristics of separation from nucleic acid under the low salt and high pH value, and then use mobile magnetic beads or transfer liquid to achieve nucleic acids. The entire extraction process.The weight of the magnetic pearl nucleic acid extract instrument is the adsorption ability of magnetic beads and nucleic acids, which directly affects the output of the extraction nucleic acid. The principle of the magnetic bead method is to crack the cell first, and then combine the nucleic acid and the magnetic bead by binding the liquid. Wash the residual protein and salt ions with the washing solution. Then separate the nucleic acid and magnetic beads.This technology can separate high -purity nucleic acids from samples such as animals and plants, body fluids, and environment. Suitable for downstream applications such as PCR, Q-PCR, molecular hybridization, sequencing, etc. Because of its highly friendly operation of magnetic beads, high nucleic acid purity, and simple automation, it has been widely used in the fields of molecular cloning, molecular hybridization, and molecular diagnosis. The specific advantages of the magnetic pearl nucleic acid extraction device are reflected:1. It can realize automation and massive operations. At present, there are hundreds of pellet nucleic acid extract instruments. The extraction time of a sample can be treated with more than a hundred samples. Perform fast and timely response.2. The operation is simple and short. The entire extraction process is only four steps, and most of them can be completed within 15-40 minutes.3. Safe and non -toxic, do not use toxic reagents such as benzene and chloroform in traditional methods to reduce damage to experimental operators.4. The specific combination of magnetic beads and nucleic acids makes the extracted nucleic acid high purity and large concentration.The magnetic pearl nucleic acid extract instrument is matched with different types of magnetic pearl nucleic acid extract reagents, and multiple samples are operated at the same time, which automatically separate the extraction and purification DNA/RNA from multiple samples such as blood, cells, tissues, viruses. The instrument uses a special magnetic stick adsorption, transfer, and releases magnetic beads to achieve the transfer of sample/magnetic bead/nucleic acid, avoiding liquid treatment, and increasing the degree of automation.The fully automatic nucleic acid extraction instrument of Proven Medical Device manufacturers is based on the magnetic rod on the magnetic rod to adsorb magnetic beads and move the magnetic beads to different reagent grooves. It can apply the extraction of nucleic acids and proteins of various samples. Just add detection samples and reagents and 96 deep -hole plates. Each independent experimental cabin can run 2 96 deep -hole plates at the same time. 24 samples. It is suitable for both a small amount of sample extraction and the high -throughput extraction required for a large amount of samples.

　　Author：MeCan Medical–ultrasound machine manufacturersIn recent years, the nucleic acid extract in the principle of magnetic beads has become the mainstream nucleic acid extraction equipment. Speaking of magnetic beads, then we must first understand what is magnetic beads? Magnetic beads are formed by a certain tissue package being absorbed by the core of the four -iron oxidation triple iron. It can be adsorbed by the magnet. At the same time, there are magical little beads that can adsorb (binding) nucleic acids that can be adsorbed by the surface bread. It can achieve automation and high -throughput of nucleic acid extraction.Magnetic beads are generally divided into three layers of structure: inner layers: the kernels for supporting structures, such as polystyrene. The middle layer: the magnetic layer, the role is to adsorb the magnets on the magnetic frame, which is to separate the nucleic acid and the reactive solution. The material is usually Fe3O4. Outer layer: modified layer, generally a negative group.The weight of the magnetic pearl nucleic acid extract instrument is the adsorption ability of magnetic beads and nucleic acids, which directly affects the output of the extraction nucleic acid. The principle of the magnetic bead method is to crack the cell first, and then combine the nucleic acid and the magnetic bead by binding the liquid. Wash the residual protein and salt ions with the washing solution. Then separate the nucleic acid and magnetic beads.This technology can separate high -purity nucleic acids from samples such as animals and plants, body fluids, and environment. Suitable for downstream applications such as PCR, Q-PCR, molecular hybridization, sequencing, etc. Because of its highly friendly operation of magnetic beads, high nucleic acid purity, and simple automation, it has been widely used in the fields of molecular cloning, molecular hybridization, and molecular diagnosis. The specific advantages of the magnetic pearl nucleic acid extraction device are reflected:1. It can realize automation and massive operations. At present, there are hundreds of pellet nucleic acid extract instruments. The extraction time of a sample can be treated with more than a hundred samples. Perform fast and timely response.2. The operation is simple and short. The entire extraction process is only four steps, and most of them can be completed within 15-40 minutes.3. Safe and non -toxic, do not use toxic reagents such as benzene and chloroform in traditional methods to reduce damage to experimental operators.4. The specific combination of magnetic beads and nucleic acids makes the extracted nucleic acid high purity and large concentration.The fully automatic nucleic acid extraction instrument of Proven Medical Device manufacturers is based on the magnetic rod on the magnetic rod to adsorb magnetic beads and move the magnetic beads to different reagent grooves. It can apply the extraction of nucleic acids and proteins of various samples. Just add detection samples and reagents and 96 deep -hole plates. Each independent experimental cabin can run 2 96 deep -hole plates at the same time. 24 samples. The PLH-96 (4x24) nucleic acid extract instrument is suitable for a small amount of sample extraction and the high-throughput extraction required for a large amount of samples.