408 results about "Electrophoresis" patented technology

Various implementations of electrophoretic systems and instruments are provided to improve electrophoresis and ease of use. Various electrophoretic systems and instruments utilize different electrode designs that can result in uniform electromigration of analytes. The electrophoretic systems and instrumentations optimize the size and / or location of electrodes relative to a sample, thereby increasing uniformity of electric field and reducing or minimizing drift of analyte migration. In addition, the electrophoresis systems and instruments provide a solution to conveniently check for electrical connections in the systems and instruments, and alert users of potential improper electrical connections, prior to performing electrophoresis.

The invention belongs to the technical field of display, and particularly relates to a touch display panel, a preparation method and a touch display device.The touch display panel comprises a substrate, a driving circuit layer and an electronic paper film; the driving circuit layer comprises a common electrode unit, a pixel electrode block and a connecting signal line; the electronic paper film comprises a plurality of electrophoresis units, each electrophoresis unit comprises a micro-capsule structure, a first conductive electrode, a second conductive electrode and a third conductive electrode, and the third conductive electrode is connected with the connecting signal line; the second conductive electrode, the connecting signal line and the common electrode unit are respectively connected with different pins of the driving chip; one of the common electrode unit and the third conductive electrode serves as a touch sensing electrode, the other one serves as a touch driving electrode, the orthographic projection of the common electrode unit on the substrate and the orthographic projection of the third conductive electrode on the substrate have an overlapping area, and the overlapping area serves as a touch detection point. When the touch display panel is touched, it can be guaranteed that the display effect is not affected.

The invention provides a low-carbon circulating technological process for treating high-total-nitrogen wastewater. A main treatment unit and a resource recycling and circulating unit are included; the main treatment unit is characterized in that high-total-nitrogen wastewater sequentially passes through a pH regulating tank, a sulfur autotrophic denitrification tank, a biochemical system, a secondary sedimentation tank, a deep treatment line and ultrafiltration reverse osmosis, produced reclaimed water enters produced water for delivery, and a part of produced concentrated water enters a resource recovery and circulation unit; the resource recovery and circulation unit is characterized in that after concentrated water is treated by a vertical electrophoresis device, mixed acid, mixed alkali and low-salt water are separated out, the mixed alkali is sent to a sulfur autotrophic denitrification tank to be used for supplementing alkalinity consumption of the sulfur autotrophic denitrification system, and the mixed acid sequentially passes through an anaerobic regulating tank, an anaerobic reactor, an alkali washing tower, a biological desulfurization reactor and a sedimentation tank; the recovered sulfur can be sold as elemental sulfur or reused in the sulfur autotrophic denitrification tank, and supernate flows back to the alkaline tower; a green, low-carbon and recyclable water treatment process flow is realized.

The invention relates to the technical field of iron-nickel alloy foil preparation, and discloses a low-curl iron-nickel alloy foil suitable for an all-solid-state battery and a preparation method of the low-curl iron-nickel alloy foil. The electrolyte solution is added into an electrolytic cell, and current is applied to the electrolyte solution; the method comprises the following steps: depositing an iron-nickel alloy on the surface of a cathode roller, stripping to obtain an iron-nickel alloy foil, carrying out electrophoresis on the iron-nickel alloy foil by using a magnesium oxide electrophoresis solution in an electrophoresis cell to form a magnesium oxide coating on the iron-nickel alloy foil, cleaning with an acid solution, and carrying out electrochemical fluorination treatment on the iron-nickel alloy foil to obtain the magnesium oxide coating on the iron-nickel alloy foil. Forming a fluorinated layer on the magnesium oxide coating; and the iron-nickel alloy foil is subjected to heat treatment at the temperature not exceeding 600 DEG C in a heat treatment chamber, and the iron-nickel alloy foil is obtained after cooling. The high-quality iron-nickel invar iron-nickel alloy foil can solve the curling problem and is suitable for all-solid-state batteries.

The invention discloses a curing oven waste gas recycling system, and relates to the technical field of curing oven waste gas recycling. The curing oven comprises a curing oven body, the top of the curing oven body is fixedly connected with a heat exchange box, the input end of the heat exchange box is fixedly connected with a waste gas recovery pipe, the output end of the heat exchange box is fixedly connected with a first fan, and the output end of the first fan is fixedly connected with a smoke exhaust pipe. Waste gas generated by the electrophoresis tank is pumped by starting the first fan and the second fan, sequentially penetrates through the heat exchange box, the curing furnace body and the interior of the combustion furnace, and circularly flows between the combustion furnace and the curing furnace body, so that after the waste gas generated by the electrophoresis tank completes heat exchange with a heat exchange medium through a heat exchange pipe, the waste gas is discharged out of the combustion furnace. And sufficient combustion in the curing furnace body and the combustion furnace is achieved, heat is provided for workpieces in the curing furnace body for drying, the combustion efficiency of the curing furnace body is effectively improved, and the utilization efficiency of waste gas generated by the electrophoresis tank is improved.

The invention discloses a copper wire tinning method for tinned copper stranded wire production, which relates to the technical field of metal surface treatment, and comprises the following steps: releasing a copper wire to an ionic liquid electrophoresis tank, applying an electric field to strip surface oxides, and then carrying out three-stage countercurrent rinsing to generate a clean copper wire; putting the clean copper wire into a composite plating tank, monitoring the tin liquid viscosity and the copper wire linear speed in real time, calculating the magnetic field gradient, and controlling tin crystal oriented growth according to the magnetic field gradient to generate an oriented crystallization tinned copper wire; the surface temperature of the directionally crystallized tinned copper wire is monitored in real time and compared with a preset temperature threshold value, a temperature permission trigger signal is generated, the annular array spray gun is triggered to work according to the temperature permission trigger signal, and a densified tinned copper wire is generated; and the densified tinned copper wire is scanned through a micro-focus CT scanner, a gap three-dimensional point cloud picture is generated, the gap size and the normal angle of the gap three-dimensional point cloud picture are analyzed, the optimal spraying parameters are recognized, and the passivation film tinned copper wire is generated.

The invention provides a layered recognition method and device for an electrophoresis image, electronic equipment and a storage medium. The method comprises the steps that computer equipment carries out image segmentation on a target electrophoresis image to obtain a plurality of lane sub-images; identifying a strip region contained in each lane sub-image to obtain one or more initial strip regions of one or more lane sub-images; performing density evaluation on each initial strip region to obtain a density score of each initial strip region; screening the initial strip region with the density fraction greater than a density threshold value as a first strip region; determining an overlapping degree between each first strip region in each other lane sub-image and each first strip region in the contrast lane sub-image, and determining a second strip region; and determining the positive degree of the target electrophoresis image according to the density score of each second strip region. According to the method and the device, the accuracy of identifying the strip region in the electrophoresis image by the computer equipment can be improved, and the accuracy of layered identification of the electrophoresis image is improved.

The invention discloses an AI-assisted protein purification result analysis method and system. The method comprises the following steps: S1, collecting chromatogram data, electrophoresis image data and mass spectrum peak table data; s2, performing data preprocessing after the chromatogram data, the electrophoresis image data and the mass spectrum peak table data are obtained; s3, carrying out AI identification analysis on the preprocessed data to realize electrophoretic band identification, chromatographic peak identification and mass spectrum deconvolution; s4, performing multi-modal fusion on the chromatography, gel electrophoresis and mass spectrum information sources; and S5, automatically generating a report, and producing a visual chart. The deep learning and multi-modal data fusion technology is introduced, comprehensive automatic analysis of chromatographic data, electrophoresis images and mass spectrum results is achieved, then automatic result analysis of the protein purification process is achieved, an artificial intelligence algorithm is used for recognizing a peak structure and an electrophoresis band, multi-modal data fusion is achieved, and the detection accuracy is improved. And generating a visual analysis report according to a data result.

The utility model relates to the technical field of processing of automobile parts, in particular to an automatic electroplating electrophoresis device for the surface of a brake disc, which comprises a bottom plate, an electroplating box, a fixing rod, a side rod and an electroplating assembly, the electroplating box is fixedly connected with the bottom plate, the fixing rod is fixedly connected with the bottom plate, and the side rod is fixedly connected with the bottom plate. The electroplating assembly comprises a driving motor, a driving rod, a connecting piece, a supporting plate, an adjusting motor, a rotating rod and a lifting piece, the driving motor is fixedly connected with one end of the driving rod, the other end of the driving rod is rotationally connected with the fixing rod, the connecting piece is in threaded connection with the driving rod, the supporting plate is fixedly connected with the connecting piece, and the adjusting motor is fixedly connected with one end of the rotating rod; the lifting part is in threaded connection with the rotating rod, so that the labor intensity of operators is effectively relieved, continuous electroplating operation of the brake disc can be achieved by preparing multiple sets of suspension frames, and the electroplating operation efficiency of the brake disc is greatly improved.

The utility model relates to the technical field of automobile part processing, in particular to an electrophoresis hanger structure, which comprises a frame body, two groups of hanging components, a lifting component and an adjusting component, the adjusting component comprises a frame body, a guide plate, a mounting plate, a first motor, a fixed block, two connecting blocks, two sliding sleeves and two supporting blocks, the frame body is connected with the lifting component, and the lifting component is connected with the guide plate. The two sliding sleeves are slidably connected with the guide plate and symmetrically arranged on the guide plate, the mounting plate is fixedly connected with the frame, the first motor is mounted on the mounting plate, the output end of the first motor is fixedly connected with the fixing block, one ends of the two connecting blocks are hinged to the fixing block, and the other ends of the two connecting blocks are hinged to the corresponding sliding sleeves respectively. And the two supporting blocks are fixedly connected with the corresponding sliding sleeves correspondingly, in this way, the distance between the two hanging assemblies can be adjusted more conveniently, the two hanging assemblies can be lowered conveniently to conduct electrophoresis machining on workpieces, and the machining efficiency is higher.

A glazing unit (101) is provided configured for reception of radio frequency signals, the glazing unit (101) has an optical layer (143) including electrophoretic charged particles and being arranged between a first substrate (141) and a second substrate (142), electrodes (122, 123) on the substrates (141, 142) cooperate in the electrophoretic modulation of the charged particles' position causing modulation of light passing through the glazing unit (101). The glazing unit (101) has at least one antenna (121) for reception of a radio frequency signal. The antenna (121) may be arranged on a side of a substrate (141, 142) or on a side of a pane (111, 112), e.g., glass pane.

The invention discloses a high-temperature-resistant flame-retardant wire harness and a preparation method thereof, and relates to the technical field of electric harnesses. The method comprises the following steps: firstly, introducing phosphorus and silicon flame-retardant elements on a polyethylene molecular chain through plasma activation and free radical grafting reaction to prepare phosphorus-silicon grafted modified polyethylene, then compounding aminated silicon dioxide and organic intercalated montmorillonite by using isophorone diisocyanate as a bridging agent to prepare the phosphorus-silicon grafted modified polyethylene composite material. The preparation method comprises the following steps: preparing an isocyanate-bridged silicon dioxide-montmorillonite composite filler to improve the dispersity and compatibility of the filler in a matrix, carrying out extrusion granulation on modified polyethylene, an ethylene-butyl acrylate copolymer, maleic anhydride grafted polyethylene, the composite filler, nano magnesium hydroxide and other additives to prepare polyethylene wire harness particles, and finally, carrying out extrusion granulation on the polyethylene wire harness particles to prepare the cable harness. And coating the surface of a copper core wire with the particles through a single-screw extrusion coating machine, and carrying out subsequent water cooling, steam treatment, drying and rolling to obtain a finished wire harness. The wire harness prepared by the invention has excellent high temperature resistance and flame retardance.

The utility model discloses a fixing device for detecting the adhesive force of an electrophoresis paint film, and relates to the technical field of detection of the adhesive force of the electrophoresis paint film on the surface of an automobile steel plate, the fixing device comprises a sample fixing table, a first locking piece and a second locking piece, the middle part of the sample fixing table is provided with a sample placing station, and the sample placing station is used for placing a sample; the sample placed at the sample placing station can be drawn by the grid drawing device; the first locking piece is used for locking the sample placed at the sample placing station; the sample fixing device is simple in structure and convenient and fast to operate, and repeated reworking and safety accidents are effectively avoided.

The invention provides a capillary electrophoresis analysis method of serum amino acid. The capillary electrophoresis analysis method comprises the following steps: S1, preparing an operation buffer solution; s2, selection and pretreatment of a quartz capillary column; s3, conditions are analyzed through electrophoresis; s4, drawing a quasi curve; s5, sample derivatization; s6, quantitative analysis. According to the method, a mixed reagent of alpha-cyclodextrin, beta-cyclodextrin and gamma-cyclodextrin is adopted for the first time, the amino acid migration behavior is cooperatively adjusted, a migration time window is expanded, the separation resolution of amino acids with similar structures is effectively improved, and the separation degree and the atlas definition are remarkably improved. According to the invention, sodium taurocholate is added, pH is regulated and controlled, a weakly alkaline buffer system with moderate conductivity and stable migration behavior is formed, separation and detection of FITC derived amino acids are facilitated, and balance of migration time distribution is optimized. The method is suitable for scenes of clinical sample analysis, disease marker screening and the like, and has good universality, stability and popularization value.

The invention provides a constant-temperature horizontal electrophoresis device. The constant-temperature horizontal electrophoresis device comprises a device main body, a horizontal mechanism and a constant-temperature mechanism, the device main body is provided with a connecting part, and the connecting part is arranged at the circumferential edge position of the device main body; the horizontal mechanism is connected with the connecting part, the horizontal mechanism comprises a base, two power pieces and a balance piece, the two power pieces and the balance piece are installed on the base, and the balance piece and the two power pieces are not located on the same straight line; the constant temperature mechanism is installed on the device body. The horizontal dynamic adjustment of the electrophoresis tank is realized through the synchronous precision control of the power piece, the constant-temperature control of the electrophoresis tank is realized through the synchronous dynamic control of the constant-temperature mechanism, the accuracy and reliability of the experiment of the electrophoresis device are improved through the cooperation of the horizontal mechanism and the constant-temperature mechanism, and meanwhile, the electrophoresis device can be suitable for various environments.

The invention provides a disease marker subtype classification determination method, and belongs to the technical field of disease marker subtype classification, and the method comprises the following steps: firstly, extracting protein from a patient sample, separating through a dimensional electrophoresis technology, and obtaining a protein expression matrix through Coomassie brilliant blue dyeing and an image analysis system; differentially expressed proteins are determined, and sequence information is obtained through mass spectrum identification. And extracting network node features by using a graph neural network method, and carrying out function annotation analysis and path identification. Patient samples are grouped by using a multi-level clustering method, and feature extraction and optimization are realized by training an embedded neural network model. And inputting the extracted features into a pre-trained function enrichment analysis model, and determining the molecular pathway features of the disease subtype. And finally, the reliability of a classification result is confirmed through an immunoblotting technology and independent patient queue verification, subtype classification of the disease markers is completed, and the problem that in the prior art, the recognition degree of subtype classification of the disease markers is not high enough is solved.

There is provided a glass unit (101) configured for receiving a radio frequency signal, the glass unit (101) having an optical layer (143) comprising electrophoretic charged particles and arranged between a first substrate (141) and a second substrate (142), electrodes (122, 123) on the substrates (141, 142) cooperating in electrophoretic modulation of the position of the charged particles, thus, modulation of the light passing through the glass unit (101) is caused. The glass unit (101) has at least one antenna (121) to receive radio frequency signals. The antenna (121) may be disposed on one side of a substrate (141, 142) or on one side of a panel (111, 112) (e.g., a glass panel).

The utility model belongs to the technical field of electrophoresis clamps, and discloses a clamp for electrophoretic coating of automobile parts, which comprises a fixing frame, the lower end of the fixing frame is rotatably connected with a clamp body, the clamp body further comprises an upper clamping assembly and a lower clamping assembly, the upper clamping assembly and the lower clamping assembly are in mirror image with each other, and the upper clamping assembly and the lower clamping assembly are welded on the left side and the right side of the lower clamping assembly. According to the clamp for electrophoretic coating of the automobile parts, the automobile parts needing electrophoresis are placed into the upper clamping assembly and the lower clamping assembly, the lower walls of the automobile parts make contact with the lower portions of the clamping rods at the positions of the lower clamping assembly, and therefore the automobile parts are fixed into the clamp body. After electrophoresis is carried out for a period of time, the clamp body is turned over by 180 degrees, and the outer wall of the automobile part is rotated by the clamped part under the influence of gravity at the moment, so that the outer wall of the automobile part is supported, the clamping position is changed, and all parts of the automobile part can make contact with electrophoresis liquid.

The invention discloses a solid waste powder heavy metal content determination method, and relates to the technical field of heavy metal content analysis, and the method comprises the following steps: S1, solid waste powder is pretreated, and a chemical reagent is added into a mother liquor preparation reaction tank for heavy metal element leaching; adding a specific element color developing reagent to obtain a specific metal complex of each heavy metal element subjected to fluorescence labeling; s2, carrying out electrophoretic separation on the heavy metal complex by adopting an electrophoresis cell fluorescence detection compound system, and carrying out fluorescence detection to obtain test index data; and S3, according to the test index data, carrying out a specific evaluation method to divide danger levels, and guiding subsequent solid waste powder treatment. The method can quantitatively evaluate the heavy metal content of the solid waste powder and perform visual treatment, and provides related scientific basis and technical support for improving the rapid decision-making efficiency and treatment rationality of the solid waste powder material in the construction site.

The invention discloses a new energy automobile battery pack shell part electrophoresis hanging and fixing system which comprises a hanging conveying system, a hanging assembly is arranged below the hanging conveying system, at least two sets of hooks are arranged on the lower portion of the hanging assembly, the hooks are arranged at intervals in the width direction of an electrophoresis tank, and a shell part is hung on each hook. A supporting frame is installed between the lower portions of every two adjacent shell components. The device has the beneficial effects that the at least two hooks are arranged at the lower end of the hanging assembly, so that one hanging assembly can hang a plurality of shell parts at the same time, and the electrophoresis efficiency of the shell parts is ensured; and through the arranged supporting frame, the two adjacent shell parts can be stably supported, and then collision between the two adjacent shell parts in the electrophoresis process is avoided.

The invention discloses a method for measuring the molar concentration of nano-particles. The method comprises the following steps: diluting a nano-particle suspension with a high-molecular polymer solution or dispersing nano-particle powder into the high-molecular polymer solution; transferring the suspension liquid to a spacing net on the side of a sample pool in an electrophoresis tank; nano-particles migrate from the sample pool to the buffer pool under the driving of the electric field and are uniformly distributed on the spacing net in a single-particle manner; performing single-particle imaging on the spacing net by using an optical microscope; and counting the number of the nanoparticles in the image so as to measure the molar concentration of the nanoparticles in the sample. The method can be used under the condition that the properties of the nanoparticles are unknown or no standard substance exists, the detection object has no additional condition, and the accuracy is high.

The invention relates to the technical field of electrophoresis apparatus electrode cleaning, in particular to a portable electrophoresis apparatus which comprises a portable electrophoresis apparatus, a horizontal electrophoresis tank is placed in the portable electrophoresis apparatus, and an electrode piece is inserted into the horizontal electrophoresis tank; a cleaning box is installed on the inner wall of the portable electrophoresis apparatus, a containing pipe is installed on the inner wall of the electrode cleaning box, a rotating disc is installed on the inner wall of the cleaning box, a touch pressing scraping strip is installed on the outer wall of the rotating disc, a spring touch block is installed on the outer wall of the rotating disc, and a floating plate is installed on the outer side of the rotating disc. According to the electrode cleaning device, an electrode can be directly inserted into the cleaning box to complete self-cleaning, manual cleaning is not needed, and the electrode is cleaned in place through rotation and cleaning liquid non-dead-corner washing; and after cleaning is completed, the electrophoresis apparatus can be directly closed, and at the moment, the cleaning cavity which is originally wet can automatically recover to a dry ventilation state, so that the storage effect of the cleaned electrode is greatly improved.

The invention discloses a durable rust-proof metal storage box coated with a protective coating and a coating method of the durable rust-proof metal storage box. The coating method comprises the steps that a plurality of needed metal storage boxes are selected, and oil stains and oxidation films on the surfaces of the metal storage boxes are removed through an electrolytic method; the method comprises the following steps: performing laser drilling treatment on the surface of a metal storage box to process a micron-sized elliptical hole structure, then performing high-temperature modification on the surface of the metal storage box, preparing an electrophoresis tank, adding an electrophoresis solution, and immersing the metal storage box as a cathode into the electrophoresis solution, applying a direct-current electric field to uniformly disperse the coating in the electrophoretic liquid onto the surface of the metal storage box and into the elliptical hole structure to form a layered structure; the dip-coated metal storage box is subjected to high-temperature baking and hot pressing to form a uniform protective coating; the elliptical hole structure is filled with the coatings with different particle sizes, and the coatings are distributed on the surface of the metal storage box, so that the layered structure of the coating is realized, the mechanical embedding between the coating and the metal box base body is increased, and the adhesive force of the coating is improved.

The utility model discloses an electrophoresis tank for electrophoretic coating, which relates to the technical field of electrophoresis coating tanks and comprises an electrophoresis tank, two ends of the bottom of the electrophoresis tank are communicated and connected with a circulating system, the top of the electrophoresis tank is fixedly provided with a moving mechanism, and the circulating system comprises a circulating pipe. According to the electrophoresis tank for electrophoretic coating, the coating in the electrophoresis tank is mixed and circulated through the circulating system, so that the coating is uniformly mixed in the tank, the coating effect of the electrophoresis tank is optimized, and the viscosity and the flowability of the coating are adjusted, so that particles in the coating are electrified and directionally deposited on the surface of a workpiece; a circulating motor in the water inlet pipe drives turbine blades to rotate forwards, meanwhile, a circulating motor in the water drainage pipe drives the turbine blades to rotate reversely, electrophoresis liquid is sucked in through the water inlet pipe, flows through the circulating pipe and then is discharged through the water drainage pipe, and therefore mixing and circulating of the coating in the electrophoresis tank are achieved; and uniform mixing of the coating in the groove is ensured.

The invention discloses an InDel primer group for constructing a sisal hemp germplasm molecule identity card and application. The invention develops and screens out an InDel molecular marker primer group which can be used for constructing a sisal hemp germplasm molecular identity card and identifying different sisal hemp germplasm resources, so that the blank of the sisal hemp germplasm resource molecular identity card is filled; the provided InDel primer group comprises 30 pairs of primers, a sisal hemp sample is amplified by adopting the primer group, assignment is performed according to the size of an electrophoretic band of an amplification product, different sisal hemp varieties can obtain unique molecular identity card codes, and the molecular identity card codes are unique. The molecular identity card can be used for quickly and accurately identifying and distinguishing all sisal hemp germplasm resources of different varieties and sources, can be used for identifying and standardizing the existing sisal hemp germplasm resources, solves the problems that the genetic background of the sisal hemp germplasm resources is not clear and the identification standard is not uniform, and provides an effective method for identifying different sisal hemp germplasm resources.

Electrophoresis device, including: a sample dish (112) on which a positive-electrode-side buffer solution container (103) containing a buffer solution and a phorese medium container (102) containing a phorese medium are arranged, and which is driven in a vertical and a horizontal direction; a thermostat oven unit (113) which holds a capillary arrangement (101) with a capillary head (403) in which a plurality of capillaries (401) are bundled in a single unit at one end thereof in a state in which the capillary head (403) protrudes downwards, and which maintains a constant internal temperature; a solution dispensing mechanism (106) for dispensing the phorese medium in the phorese medium container (102) to the capillary assembly (101) from the capillary head (403); and a current source (408) for applying a voltage to both ends of the capillary arrangement (101), wherein Openings for inserting the capillary head (403) are provided in the upper areas of the positive electrode-side buffer solution container (103) and the phorese medium container (102), and the thermostat oven unit (113) comprises a first lid element (207) which is arranged above the sample dish (112) and seals the upper part of the positive electrode-side buffer solution container (103) during the dispensing of the phorese medium by the solution dispensing mechanism (106), wherein the upper part of the positive electrode-side buffer solution container (103) is sealed by raising the sample dish (112) and pressing the positive electrode-side buffer solution container (103) against the first lid element (207).

According to the method for separating iron oxide particles in raw ore pulp and underflow red mud in the aluminum oxide production process through electrophoresis and the electrophoretic separation device, iron oxide moves towards a negative electrode in an electrophoresis tank and is enriched at the negative electrode to form high-iron slurry, the iron oxide is pushed downwards through a scraper blade to enter a high-iron slurry collecting tank and then is discharged for solid-liquid separation, and iron oxide solids are separated out. When the iron oxide is separated, the aluminum oxide, the calcium oxide, the titanium oxide and the like slowly move towards the negative electrode, the aluminosilicate and the aluminate carry negative charges, and the silicon oxide, the calcium aluminate, the calcium aluminosilicate and other particles move towards the positive electrode and are enriched to form low-iron slurry, a flocculating agent is added into a positive electrode area, and the low-iron slurry after the iron oxide is separated is flocculated and settled to enter a low-iron slurry collecting tank to be discharged.

Embodiments described herein relate to systems, devices, and methods for performing preparative electrophoresis. In some embodiments, a housing defines a plurality of cavities each configured to receive a vertical channel. Each vertical channel may include a hydrogel defining a sample well configured to receive a sample of DNA fragments. The vertical channel may be placed in fluidic communication with at least a first reservoir and a second reservoir. In some embodiments, preparative electrophoresis may be completed for the plurality of vertical channels simultaneously. The embodiments described herein may be integrated into automatic workflows for high-throughput applications. The embodiments described herein may be used for both long-read and short-read sequencing applications.

The utility model discloses an electrophoresis work fixture for auto parts, which comprises a longitudinal suspender, the bottom of the longitudinal suspender is connected with a transverse suspender, the transverse suspender is provided with a plurality of first hooks which are arranged at intervals along the length direction of the transverse suspender, two ends of the transverse suspender are respectively provided with a hanging ring, a positioning frame is arranged below the transverse suspender, and the positioning frame is connected with the longitudinal suspender. The two ends of the positioning frame are respectively provided with two lock chains, one end of each lock chain is connected with the positioning frame, and the other end of each lock chain is provided with a second hook which is hung on the hanging ring. The tool clamp has the advantages of being convenient to clamp, capable of preventing falling, complete in overall function and high in practicability.

This invention relates to a method for determining the source of tobacco components, belonging to the field of molecular biology. The method includes the following steps: ① Designing primers based on the tobacco-specific SSR-1 marker; extracting DNA from the sample to be tested, performing PCR amplification on the DNA using the primers to obtain a first amplification product, and analyzing by electrophoresis to determine whether a tobacco species-specific band is present; if present, the sample to be tested contains tobacco components; ② Eluting the sample containing tobacco components, extracting the eluted DNA from the sample, performing PCR amplification on the eluted DNA using the primers to obtain a second amplification product, and analyzing by electrophoresis to determine whether a tobacco species-specific band is present; if present, the tobacco component is endogenous; the elution buffer used is a 1.0–2.0 mol / L NaCl solution. This method can both determine whether the sample to be tested is tobacco and identify the source of the component.