25results about How to "Guaranteed Solubility" patented technology

The invention discloses a preparation method of a triple detection kit for influenza A, influenza B and new coronavirus antigens, and belongs to the field of respiratory virus in-vitro detection. In the antibody labeling stage, the antigen and the antibody can be more sufficiently combined in a manner of adding the linking arm, so that the antigen detection sensitivity can be improved. In the metal spraying stage, a novel coronavirus monoclonal antibody, an influenza A virus monoclonal antibody and an influenza B virus monoclonal antibody marked by latex microspheres are sequentially subjected to multi-layer metal spraying at the same position by a metal spraying instrument, the two antibodies are isolated by a trehalose solution, and metal spraying of three layers of antibodies isolated from each other is completed. And the cross reaction between different antibodies of the conjugate pad in the storage process is avoided, so that non-specific binding is avoided, and the storage stability is improved. The detection kit prepared by the method can specifically detect the novel coronavirus, the influenza A virus and the influenza B virus, and has the advantages of high sensitivity, good repeatability and the like.

The application belongs to the technical field of detection, and particularly relates to a method for determining the content of chlorhexidine acetate in a disinfectant. The method for determining the content of chlorhexidine acetate in the disinfectant comprises the following steps: (1) dispersing the sample with glacial acetic acid, releasing chlorhexidine acetate combined with sample matrix components, and extracting with a methanol aqueous solution; and (2) taking a tetrabutylammonium bromide-acetic acid-acetonitrile solution as a mobile phase, and detecting with a high-performance liquid chromatograph. The method for detecting chlorhexidine acetate is simple in operation, good in reproducibility, complete in separation from impurities, high in accuracy, and has a good application prospect.

The invention discloses a multi-element conjugated polymer and a preparation method and application thereof, the multi-element conjugated polymer has the following basic unit structure: # imgabs0 #, D1 and D2 are strongly crystallized electron-rich conjugated units, A1 and A2 are strongly crystallized electron-deficient conjugated units, and n = 50-1000. The preparation method comprises the following steps: carrying out copolymerization on D1, D2, A1 and A2 in the presence of a palladium catalyst, settling, carrying out suction filtration, extracting and drying to obtain the multi-element conjugated polymer. The multielement conjugated polymer prepared by the invention not only can maintain the original high crystallinity, but also can obtain higher molecular weight, and is beneficial to forming a better polymer-polymer interpenetrating network and optimizing the morphology of an active layer; in addition, due to random arrangement of the multi-element units of the main framework, the orbit degeneracy degree of the whole molecule is reduced, the spectrum of the polymer is blue-shifted, the device voltage can be effectively improved, and the application prospect is good.

The invention discloses a polyelectrolyte material. The polyelectrolyte material comprises a poly (aryl-alkylene) main chain; the main chain does not contain heteroatoms such as sulfur, ether and oxygen, so that the phenomenon that unstable electron-rich sites are generated on aryl due to the electron donating effect of the heteroatoms is avoided, and hydroxyl radicals are not prone to attacking the poly (aryl-alkylene) polymer; by using a high-stability cation exchange group, the alkali resistance is improved. The dissolvability of the polymer is controlled through the dissolvability of biphenyl, the mechanical strength of the polymer is increased by the biphenyl block structure unit, the dissolvability of the polymer is increased while the strength of the polymer is ensured, and the polymer can be dissolved in methanol or methanol / water after being soaked in sodium chloride; the method is suitable for blade coating method membrane preparation and membrane electrode manufacturing.

The invention belongs to the technical field of traditional Chinese medicine extraction, and particularly relates to a traditional Chinese medicine extraction and filtration method which comprises the following steps: adding traditional Chinese medicine raw materials and water into an extraction tank through a feeding port, connecting a vacuumizing device through a gas pipeline interface, vacuumizing the interior of the extraction tank, and then connecting a protective atmosphere pipeline through the gas pipeline interface, introducing a protective atmosphere into the extraction tank, opening a steam adjusting valve, introducing high-pressure steam into the extraction tank, starting extraction of traditional Chinese medicine components, filtering traditional Chinese medicine residues in an extracting solution through a stainless steel filter element filter after extraction of the traditional Chinese medicine components is completed, and storing the extracting solution through a third liquid storage tank. Steam can be introduced into the extraction tank, namely, the extraction temperature in the extraction tank is adjusted according to the temperatures required by different traditional Chinese medicines, so that thermosensitive and soluble medicinal components can be extracted at a low temperature, insoluble medicinal components can be extracted under the protection of nitrogen and in a subcritical state of water, and the extraction rate of the medicinal components in the traditional Chinese medicines or formulas is increased.

The application belongs to the technical field of thickening agent preparation, and particularly relates to a preparation method of a polymer thickening agent for fracturing. The preparation method comprises the following steps: preparing a pre-processed methyl methacrylate (triethoxysilyl) methyl ester solution; preparing a pre-processed 2-[[2-(methacryloyloxy)ethyl]dimethylammonium] acetate solution; preparing an aqueous phase; and preparing the polymer thickening agent for fracturing. The preparation method of the polymer thickening agent for fracturing comprises the following steps: taking acrylamide as a main monomer, taking maleic acid mono[2(1-oxo-2-propenyl)oxyethyl] ester, methyl methacrylate (triethoxysilyl) methyl ester and 2-[[2-(methacryloyloxy)ethyl]dimethylammonium] acetate as functional monomers, taking an oxidation-reduction initiator combined with an azo initiator as an initiator system, and realizing multi-monomer copolymerization through gradient temperature polymerization to prepare the polymer thickening agent for fracturing which has temperature resistance and salt resistance.

The invention provides a borehole wall stable drilling fluid suitable for hard and brittle formations and a preparation method of the borehole wall stable drilling fluid. The drilling fluid is prepared from the following substances in percentage by weight: 0.01 to 0.03 percent of soluble carbonate, 0.01 to 0.25 percent of alkaline regulator, 3.0 to 5.0 percent of bentonite, 1.0 to 3.0 percent of coating blocking agent, 1.0 to 4.0 percent of sulfonated phenolic resin, 0.1 to 0.5 percent of pressure resistance transfer agent, 5 to 15 percent of inhibitor, 4.0 to 8.0 percent of calcium carbonate, 1.0 to 3.0 percent of emulsified asphalt, 0.3 to 0.5 percent of xanthan gum and the balance of water. The plugging agent has the technical characteristics of good plugging property and remarkable pressure transmission relieving effect. Compared with the conventional plugging anti-sloughing drilling fluid system, the plugging anti-sloughing drilling fluid has the advantages that the plugging performance is better, effective components in the drilling fluid can be rapidly coated and spread at drilling fluid rock cracks and cementation positions when a stratum is drilled, pressure transmission and clay mineral hydration expansion pressure are rapidly reduced, the initial state of stratum rock can be kept to the maximum extent, and well wall stability is achieved.

The invention relates to the technical field of soil detection, in particular to soil detection dissolving equipment which comprises a base, a containing cylinder is fixedly connected to the base, a supporting frame is connected to the containing cylinder through a supporting mechanism, a motor is fixedly connected to the supporting frame, a rotating shaft is in transmission connection to the motor, and the rotating shaft is in transmission connection with the containing cylinder. The rotating shaft is rotationally connected with the supporting frame through a bearing; a connecting plate is fixedly connected to the rotating shaft, two limiting grooves are formed in the connecting plate, limiting blocks are arranged in the two limiting grooves in a sliding mode, fixing lugs are fixedly connected to the two limiting blocks, and a two-way reciprocating threaded rod is connected to the two fixing lugs in a threaded penetrating mode; and the two-way reciprocating threaded rod is rotationally connected with the rotating shaft through a bearing, the two limiting blocks are connected with connecting cylinders through connecting mechanisms, and the two connecting cylinders are each provided with a plurality of puncturing nails. The dissolving effect is ensured, and the accuracy of a detection result is facilitated.

The present invention discloses a method for preparing a woven fabric-based cellulose-amino acid composite diaphragm. In order to solve the problems of poor mechanical properties and electrolyte wettability of existing diaphragms, high cost, and being unfavorable for industrial application, the present invention proposes a method for preparing a sodium ion battery diaphragm using woven fabric as a substrate, cellulose and amino acids as filling materials, through dissolution, commingling, coating, and replacement processes. The composite diaphragm of the present invention utilizes the orderly interlacing of the warp and weft yarns of the woven fabric to achieve the design of the pore structure and curvature of the diaphragm, while improving the mechanical properties of the diaphragm, and establishing an efficient ion transmission channel inside the battery. In the present invention, the filling materials cellulose and amino acids further optimize the pore structure of the diaphragm, enrich the polar functional groups of the diaphragm, and improve the cycle stability of the battery and extend the cycle life of the battery through uniform electric field distribution and ion concentration.

The invention relates to the technical field of stirring traditional Chinese medicine powder, and specifically to a stirring and mixing device for wheat oligopeptide traditional Chinese medicine powder for cardiovascular and cerebrovascular diseases, comprising a stirring tank, wherein a driving motor is fixedly connected to the outer wall of the stirring tank, a transmission rod is arranged at the output end of the driving motor, the transmission rod slides through the interior of the stirring tank, the interior of the transmission rod is hollow, a plurality of outer cylinders are sleeved on the outer wall of the transmission rod, both sides of the plurality of outer cylinders are fixedly connected with a transverse stirring shaft, and the rotation speed of the transmission rod can be increased in the later stage of stirring by the arrangement of an inner collecting plate, when the rotation speed of the transmission rod is accelerated, the inner collecting plate will come into the stirring plate, and when the stirring plate rotates, the lumps in the wheat oligopeptide traditional Chinese medicine powder and water mixture are collected, and transported to a crushing cylinder through a material guide pipe, and the lumps are re-crushed and mixed by a grinding roller, so as to ensure the mixed use effect of the whole wheat oligopeptide traditional Chinese medicine powder.

This invention relates to a weakly associative functionalized polyacrylamide and its preparation method. The functionalized polyacrylamide is obtained by copolymerization of acrylamide structural monomers, ionic structural monomers, and hyperbranched associative monomers; the mass ratio of acrylamide structural monomers:ionic structural monomers:hyperbranched associative monomers is 30-60:0-30:0.5-2. The advantage of this invention is the synthesis of a novel class of hyperbranched associative monomers. By introducing a weakly associative structure into acrylamide, the thickening ability, shear resistance, and temperature and salt resistance of polyacrylamide can be enhanced, while overcoming the influence of conventional associative monomer introduction on solubility. This results in a fast-dissolving, weakly associative polyacrylamide that can be used for aqueous solution thickening, oil and gas extraction, and other fields.

The invention relates to an ammonium metavanadate high-concentration vanadium electrolyte and a preparation method thereof. The supporting electrolyte of the electrolyte is sulfamic acid, and the positive electrode electrolyte and the negative electrode electrolyte comprise vanadium ions, sulfonic acid ions and ammonium ions. The positive electrolyte mainly contains tetravalent V (VI) and pentavalent V (V) vanadium ions, and the negative electrolyte mainly contains trivalent V (III) and divalent V (II) vanadium ions. The preparation method comprises the following steps: firstly, preparing a sulfamic acid-based ammonium metavanadate electrolyte precursor with the vanadium ion concentration of 2.0-4.0 mol / L through a sectional reduction method, specifically, dissolving ammonium metavanadate and an optional reducing agent in a sulfamic acid solution, controlling the pH value of the reaction to be 1.0-3.0, and controlling the temperature of the reaction to be 60-100 DEG C to obtain a positive electrode electrolyte precursor and a negative electrode electrolyte precursor; and further obtaining a positive electrode electrolyte and a negative electrode electrolyte of the redox battery through the electrolyte precursor, wherein the positive electrode electrolyte and the negative electrode electrolyte can be used as active substances to form various redox batteries.

The invention belongs to the technical field of medicines, and particularly relates to a ceftizoxime sodium micro-capsule, a preparation method and a ceftizoxime sodium micro-capsule preparation. The invention provides a ceftizoxime sodium micro-capsule. The ceftizoxime sodium micro-capsule comprises a capsule core and a capsule wall material wrapping the capsule core, the capsule material comprises an inner coating and an outer coating, the inner coating wraps the capsule core, and the capsule core comprises ceftizoxime sodium; the inner coating comprises carboxymethyl glucan; the outer coating comprises glyceryl monolinoleate; the mass ratio of the ceftizoxime sodium to the carboxymethyl glucan to the glyceryl monolinoleate is (1 to 3): (0.5 to 1.5): (0.5 to 1.5). The prepared ceftizoxime sodium micro-capsule is high in stability, long in storage period and good in slow release effect.

This utility model relates to the field of masterbatch raw material dissolution technology, specifically disclosing a high-temperature dissolution device for masterbatch raw materials of composite fiber fabrics. The device includes a housing with a feed inlet on its upper surface. A stirring mechanism for agitating the raw materials is located at the upper end of the housing, and an auxiliary mechanism for assisting in the dissolution of the raw materials is located on one side of the stirring mechanism. The stirring mechanism includes a drive motor, which is bolted to the upper end of the housing. An active helical gear is fixed to the power output shaft of the drive motor. Through the stirring mechanism, the drive motor drives the active helical gear to rotate, which in turn drives the transmission tube to rotate. This causes the spiral blades to transport the masterbatch raw materials inside the housing from bottom to top, thereby uniformly heating the masterbatch raw materials and ensuring a good dissolution effect. Furthermore, the rotation of the transmission tube drives the auxiliary rod to move, which agitates the masterbatch raw materials and improves the dissolution effect.

The invention provides a Clanis bilineata tsingtauica thick soup and a preparation method thereof, and particularly belongs to the technical field of seasonings. Clanis bilineata larva powder and pig bone soup-stock dry powder are used as core raw materials, and are matched with egg white powder, papaya powder and various seasoning, thickening and freshening auxiliary materials. Through electronic nose detection, W1C, W3S and other sensor response values corresponding to the characteristic fishy smell of the clanis bilineata tsingtauica are all smaller than or equal to 1.0, and effective fishy smell removal of the papaya powder is achieved; meanwhile, the product is outstanding in palatable taste dimension response, balanced in taste dimension response of salty taste, aftertaste and the like, free of obvious irritation to bitter taste and astringent taste, and coordinated in salty and sweet flavors. The fishy smell of the clanis bilineata tsingtauica is removed by using the natural components of the papaya powder, the fresh and fragrant base of the pig bone soup-stock and the freshness enhancing effect of the disodium 5 '-ribonucleotide are combined, so that the thick soup is fresh, fragrant and mellow in taste and good in solubility, meanwhile, the balance of nutrition and flavor is realized through scientific proportioning, the product is convenient to store and ready to eat, and the category of deeply processed clanis bilineata tsingtauica food is enriched.

The present invention discloses a lipid complex for mammalian cell culture medium and its preparation method and application, belonging to the field of cell culture technology. The lipid complex includes lipid substances, organic solvents, solubilizers and water prepared in a certain proportion; the lipid substances include one or more of α-linolenic acid, γ-linolenic acid, oleic acid, linoleic acid, eicosapentaenoic acid, docosahexaenoic acid, myristic acid, lauric acid, arachidonic acid and palmitic acid. The lipid complex of the present invention not only has clear chemical composition and is safe and harmless, but also has a simplified formula and excellent performance. It can effectively increase cell growth density and cell viability and increase the yield of target protein when added to the culture medium, and has broad application value.

The invention provides flurbiprofen injection and a preparation method thereof, and belongs to the technical field of biological medicine. The flurbiprofen arginine salt is prepared from the flurbiprofen, the solubility is remarkably improved, and the problem that the water solubility of the flurbiprofen is extremely poor is solved; meanwhile, nitrogen is filled to serve as a protective agent, the dissolved oxygen content of liquid medicine before filling is controlled to be not larger than 5 ppm, the headspace residual oxygen content in a bottle during filling is controlled to be not larger than 5%, the prepared flurbiprofen injection is stable in quality, the quality stability can be kept for 6 months in an acceleration test at the temperature of 40 DEG C, and the stability of the flurbiprofen injection is improved. The content of the generated oxidative degradation impurity 4-acetyl-2-fluorobiphenyl is obviously low (the total impurity content does not exceed 0.2%), and when the 4-acetyl-2-fluorobiphenyl is used in compatibility with a sodium chloride injection or a glucose injection, the clear and transparent liquid medicine can be ensured, and the clinical compatibility stability is good.

The invention discloses a synthetic method of modified ethoxylated tetrahydrofurfuryl alcohol acrylate, ethoxylated tetrahydrofurfuryl alcohol and acrylic acid are subjected to esterification reaction in the presence of a solvent and a catalyst to obtain ethoxylated tetrahydrofurfuryl alcohol acrylate, the content of tetrahydrofurfuryl alcohol acrylate in the ethoxylated tetrahydrofurfuryl alcohol acrylate is lower than 0.1%, and the content of tetrahydrofurfuryl alcohol acrylate in the ethoxylated tetrahydrofurfuryl alcohol acrylate is lower than 0.1%. And the number of ethoxy is 1-4. In the modified ethoxylated tetrahydrofurfuryl alcohol acrylate, the content of tetrahydrofurfuryl alcohol acrylate is lower than 0.1%, so that the toxicity and irritation are effectively reduced, the EO number is controlled to be 1-4, and the dissolving property of a monomer is also effectively maintained.

The utility model relates to the technical field of dosing devices, in particular to a chemical cleaning agent adding device, which can gradually add a chemical cleaning agent, mix the chemical cleaning agent with water, ensure the dissolving effect, improve the dissolving speed and improve the dosing efficiency. Comprising a mixing cylinder, a water inlet pipe is connected to the left end of the mixing cylinder, an output pipe is connected to the right end of the mixing cylinder, a partition plate is fixedly connected to the interior of the mixing cylinder, a plurality of communicating holes are formed in the partition plate, and the interior of the mixing cylinder is divided into an upper part and a lower part; the input end of the output pipe is communicated with a lower cavity of the mixing cylinder, the top of the mixing cylinder is connected with a chemical conveying pipe, a plurality of feeding holes are formed in the position, connected with the chemical conveying pipe, of the top end of the mixing cylinder, a feeding hopper is arranged on the upper portion of the chemical conveying pipe, a feeding assembly is installed in the chemical conveying pipe, and a mixing assembly is installed in the lower cavity of the mixing cylinder.

The utility model relates to the technical field of inspection equipment, in particular to a food and drug inspection and dissolution device which comprises a supporting frame, a containing frame is fixedly installed on the inner wall of the supporting frame, a dissolution barrel is arranged at the bottom of the containing frame, a shell is arranged on the outer surface of the dissolution barrel, and the shell is connected with the containing frame. The partition plate is fixedly connected to the inner wall of the containing frame, connecting holes are formed in the inner wall of the partition plate, and fixing blocks are fixedly installed on the inner wall of the containing frame and the inner wall of the partition plate. By arranging the filter screen, the connecting hole, the connecting plate and the crushing roller, the food or medicine dissolving rate of the equipment is improved, in addition, the control panel, the electric heating plate, the shell, the dissolving barrel and the stirring blades are arranged, the control panel can adjust the temperature of the electric heating plate according to the actual situation, the electric heating plate can improve the temperature of a dissolving solution in the dissolving barrel, and the stirring blades are arranged in the shell. And the dissolution rate of food or medicines is further improved.

The invention discloses a phenolic resin microsphere-based porous carbon conductive composite material and a preparation method thereof, and belongs to the technical field of conductive materials. Phenolic resin microspheres with specific molecular weight and hydroxymethyl content are used as carbon precursors, nitrogen-doped carbon nanofibers are introduced to construct a continuous conductive network, a metal-ligand self-assembled mesoporous template agent is adopted to form ordered multilevel channels, and a skeleton structure is enhanced by virtue of a boric acid ester crosslinking aid. The preparation method comprises the steps of potential regulation and control dispersion of precursor slurry, alkaline steam aging forming and gradient pyrolysis carbonization in an inert atmosphere. The method avoids the use of strong corrosive reagents, and the process is environment-friendly. The obtained composite material has high specific surface area, excellent conductivity and good mechanical strength, effectively solves the technical problems that a traditional porous carbon material is disordered in pore structure, insufficient in conductivity and weak in mechanical property and is difficult to synergistically optimize, and has wide application prospects in the fields of supercapacitor electrodes, silicon-carbon negative electrodes and the like.

The utility model discloses a lower drive washing device for dynamically regulating and controlling waste incineration fly ash, which dynamically regulates and controls the feeding mode, the feeding proportion and the stirring time of fly ash and water through the linkage among a metering system, a liquid level controller, a density tester and a stirring driving system, effectively improves the dissolving efficiency of the fly ash, avoids the problem that the fly ash is caked and is difficult to dissolve, and improves the quality of the fly ash. Meanwhile, the water-cement ratio in the washing process is optimized. The problems of fly ash particle deposition and direct discharge due to incomplete washing are solved through the combined design of lower drive stirring washing, the rotary scraper and the filter sieve plate, and the fly ash washing efficiency is improved.

The application discloses a nystatin solution and a preparation method and application thereof, which is prepared from the following raw materials in parts by weight: nystatin 20-50 parts, dimethyl sulfoxide 110-220 parts, preservative 1.5-2.0 parts, antioxidant 0.5-1 part and 1,2-propylene glycol 737-880 parts. The application creatively adopts a composite solvent system of dimethyl sulfoxide and propylene glycol, utilizes the extremely strong dissolving capacity of dimethyl sulfoxide and the auxiliary solubilization and dilution effect of propylene glycol, and produces a significant synergistic effect. The system can completely dissolve up to 50 parts by weight of nystatin, forms a clear, transparent and uniform stable solution, fundamentally solves the technical bottleneck that nystatin cannot be prepared into a high-content solution due to poor water solubility, and lays a foundation for poultry group water medication.

The novel biological filter device comprises a filter and a return pipe, a sewage inlet is formed in one side wall of the filter, a water outlet and an air inlet are formed in the other side wall of the filter, an aeration port is formed in the upper surface of the bottom of the filter, and the return pipe is arranged above the filter. The side wall close to the water inlet end of the return pipe is communicated with the air inlet, a return pipe outlet of the return pipe is arranged above the position, close to the sewage inlet, of the filter tank, and filter material particles are arranged in the filter tank. According to the device disclosed by the utility model, proper filter materials are screened for biofilm formation and then float in water in the filter tank, so that the effects of removing COD and filtering are achieved; meanwhile, the aeration port at the bottom ensures that dissolved oxygen in water and the filter material are continuously suspended, and the return pipe near the drainage port forms negative pressure by blowing air to send the filter material back to the sewage inlet, so that the filter material is uniformly distributed, a good removal effect is achieved, a hardening effect caused by growth of microorganisms is effectively prevented, and the service life of the filter material is prolonged. And the problem that the device is easily blocked by filter material scraps can be avoided.

The present application belongs to the technical field of chiral photoelectric materials, and particularly relates to a chiral additive for inducing spiral aggregation of ladder-type non-fullerene acceptors, and a preparation method and application thereof.The chiral additive for inducing spiral aggregation of ladder-type non-fullerene acceptors provided by the present application takes an axially chiral conjugated group as a skeleton and takes a chiral source; a thiophene bridge is used to ensure solubility, and a cyano indenone structure is used for terminal modification to ensure that the chiral additive forms an alloy phase with acceptor molecules. The chiral additive can be used for preparing photoelectric devices such as solar cells or circularly polarized light detectors. The present application uses a chiral additive to induce Y6-type acceptor materials to occur spiral aggregation and form a spiral superstructure with circular dichroism activity. In addition, the chiral additive can optimize the nanomorphology of the active layer in the solar cell, enhance the charge transport and inhibit the recombination, and can improve the photoelectric conversion efficiency of the solar cell.