54results about How to "Avoid price" patented technology

The invention belongs to the technical field of polymer solar cells and particularly relates to a reciprocal form electrode polymer solar cell using TiO2 as an electronic transmission layer, CuPc as a cavity transmission layer and a preparation method thereof. The method includes the steps of: using sol-gel technology to grow a layer of uniform and compact nanocrystal titanium dioxide (TiO2) film on an ITO glass substrate, then spin-coating a layer of P3HT:PCBM solution dissolved by dichlorobenzene, after annealing, using thermal evaporation to grow a layer of CuPc with certain thickness and finally evaporating Au electrode. The polymer solar cell prepared by utilizing the method solves two problems of the traditional polymer solar cell, namely that the mixed solution of 3, 4-EDOT and polystyrolsulfon acid corrode the surface of ITO glass, and the excessive thinness of cathode buffer layer LiF causes the operating process to be difficult to be controlled accurately.

The invention provides a clean preparation method of a magnalium based laminated composite hydroxide. The method uses magnesium hydroxide, magnesium oxide, pseudo boehmite, inorganic acid and a material containing functional anions as raw materials, uses magnesium chloride or magnesium nitrate as a circulation medium, and uses the property of peptization under acidic condition of boehmite to improve the reaction activity of pseudoboehmite; the concentration of magnesium ions in solution is increased by using magnesium chloride or magnesium nitrate. The method accelerates the formation rate of laminated composite hydroxide, promotes the dissolution of magnesium hydroxide and magnesium oxide, shortens the reaction time, overcomes the defects of high reaction temperature and long time consumption in hydrothermal method for synthesis of laminated composite hydroxide, and can rapidly prepare magnalium based laminated composite hydroxide under mild conditions. Magnesium chloride and magnesium nitrate can be recycled; and the preparation process has no waste discharge, and is green and environment-friendly. The method has the advantages of abundant raw materials, low cost, simple preparation process, mild reaction conditions, and easiness to industrial production.

The invention belongs to the field of rice machine transplanting seedling raising technologies and relates to a soilless rice seedling raising method and application. The soilless rice seedling raising method comprises the following steps: preparing a seedling bed; preparing a seedling raising medium; sowing seed rice; coating a film; managing seedlings; and drawing and transporting the seedlings. Rice husk and nonwovens are used as water volume seedling raising media, a water planting nutrient solution is applied to seedling cultivation, the fertilizer utilization efficiency is greatly increased, the seedlings grow strongly, and the elasticity is relatively great. The length of raised seedling volume reaches 3-6m, the weight is only 1 / 5 of that of a conventional seedling block, and the investment of manpower and machines in the seedling block carrying process is reduced. Meanwhile, the number of halt and seedling supplement of a rice transplanter is effectively reduced so that the farming machine transplanting efficiency is greatly improved in the machine transplanting farming process as the seedling volume is 3-6m. The soilless rice seedling cultivation method is simple and convenient to operate, labor-saving and time-saving. By utilizing the soilless rice seedling raising method, industrialized, intensive and large-scale seedling raising is easy to realize.

The invention relates to a fish bone pet attractant and a preparation method thereof and belongs to the technical field of food resource comprehensive utilization. Fish bone leftovers are taken as a main ingredient, chicken liver is taken as an auxiliary material, the preparation method provided by the invention is adopted, step-by-step enzymolysis is carried out by virtue of compound protease and flavour protease, glucose and glycine are added, Maillard reaction is carried out, then white granulated sugar is added, mixed culture is inoculated, fermentation is carried out, then pH value is adjusted by virtue of critic acid and hydrochloric acid, and finally edible salt is added to prepare highly acidic semi-solid fish bone pet attractant. Fishbone waste is effectively utilized, economic value of the fishbone waste is increased, and a preparation method is simple, so that cost is greatly reduced, all the nutrients are contained, fishbone fishy smell is reduced, flavour is fresh and fragrant, and palatability and food calling property of a pet are greatly enhanced; high temperature treatment, appropriate pH value and addition of edible salt are adopted, so that the fish bone pet attractant can not decay or go bad in a longer time, and a quality guarantee period is prolonged; and the fish bone pet attractant provided by the invention is suitable for being purchased by vast of low-medium pet lovers and keeping pets by the vast of low-medium pet lovers, and the fish bone pet attractant is cheap and fine.

The invention relates to high-strength two-phase ultralight magnesium lithium alloy and a preparation method thereof and belongs to the technical field of light metal material preparation. The high-strength two-phase ultralight magnesium lithium alloy disclosed by the invention comprises the following components in mass percent: 6.0-9.0 percent of Li, 1.0-6.0 percent of Al, 0.01-1.0 percent of Y and 0.21-0.5 percent of Ca. According to the preparation method disclosed by the invention, magnesium lithium alloy is smelted in a general resistance furnace by adopting a flux-covering and gas protection method, so that the high-strength two-phase ultralight magnesium lithium alloy with the room temperature tensile strength of 162-190Mpa, the yield strength of 150-170Mpa, the percentage elongation of 15-30 percent and the density of 1.43-1.48g / cm<3> is obtained. The preparation process is simple; the obtained products are excellent in performance and industrial production is facilitated.

The invention relates to a preparation method of an oxidation coenzyme I. According to the method, nicotinamide ribonucleoside (NR) and adenosine disodium triphosphate (ATP-Na2) react with each other to obtain the oxidation coenzyme I (NAD+, Nicotinamide Adenine Dinucleotide+) in a buffer solution with the pH of 5.0 to 8.0 at a temperature of 30 DEG C to 40 DEG C under the catalytic action of nicotinamide ribonucleoside kinase (NRK) under the condition of the existence of divalent metal ions. According to the invention, a biocatalysis method is adopted, the oxidation coenzyme is prepared by utilizing an NRK one pot process, the reaction system is simple, the conditions are mild, and the preparation method has wide industrialization application prospect.

The invention provides high-strength magnesium-lithium alloy and a preparation method thereof. Commercial pure Mg, commercial pure Li, commercial pure Zn, Mg-RY middle alloy are taken as materials; the high-strength magnesium-lithium alloy is prepared from the materials by mass percent: 4.5-5.5% of Li, 2.0-3.8% of RY, 0.2-1.0% of Zn, less than 0.03% of gross of inevitable Fe, Cu, Ni and Si impurities, and the balance of Mg in a mixing manner according to the ratio. The preparation method comprises the steps of: based on commercial pure Mg, commercial pure Li, commercial pure Zn, Mg-RY middle alloy as materials, mixing the following components in percentage by mass: 4.5-5.5% of Li, 2.0-3.8% of RY, 0.2-1.0% of Zn, less than 0.03% of gross of inevitable Fe, Cu, Ni and Si impurities, and the balance of Mg; smelting in a vacuum induction smelting furnace, wherein the inside of the furnace is vacuumized before smelting, and then aerating argon is aerated to protect, the smelting process is carried out under protection of argon atmosphere, and the smelting temperature is 660-750 DEG C; casting the smelted melt into a metal die to obtain as-cast alloy; carrying out hot extrusion for at least twice to obtain the high-strength magnesium-lithium alloy. The obtained alloy disclosed by the invention has high strength and good plasticity; the tensile strength at room temperature is 220-260 MPa; the yield strength is 180-220MPa; the elongation percentage is 15-25%.

The invention discloses an ecological guardrail with water storage irrigation functions. The ecological guardrail comprises at least one support and double-layer grooves. The double-layer grooves are formed in the supports, and the supports and the double-layer grooves are integrally assembled; upper-layer planting grooves of the double-layer grooves are formed in lower-layer water tanks and are separated from the lower-layer water tanks by laid water absorption stone, a water inlet and an overflow opening are formed in a side of each lower-layer water tank, each overflow opening is formed in the upper portion of the corresponding water inlet, and water absorption cotton strips are arranged in the lower-layer water tanks and are communicated with the water absorption stone by non-woven fabric layers which are laid on the lower portion of the water absorption stone; guardrail sleeves are arranged on support columns in the supports, and the double-layer grooves are formed in the guardrail sleeves. The ecological guardrail with the water storage irrigation functions has the advantages that irrigation and maintenance effects can be realized by the existing seedling guardrail, water storage and supply effects can be realized, and the ecological guardrail is favorable for growth of plants in the planting grooves of the guardrail and has an excellent ecological benefit; the ecological guardrail is simple in structure and low in cost.

A mechanical friction type stepless speed variator is composed of mechanical pressing and speed-regulating mechanism, pressing disk, pressing spring and the friction set with complex generating line.Said friction set consists of static conic disk and moving conic disk, which are coaxial and have opposite conic surfaces, which are in contact by flexible closed-loop friction formed by frictino disks or pins. Said conic surface comprises a straight-line segment and a curve segment. Said mechanical pressing and speed-regulating mechanism is composed of bidirectional three-position clutch, symmetric planetary gear train, gear nut and external gear.

The invention discloses a method for preparing natural color bamboo fiber high-water absorption lining paper for production of hygienic products. According to the method, bamboo is adopted as a raw material, and with the combination of physical and chemical methods, a product which is excellent in comprehensive quality and small in environment pollution is prepared. The physical property indexes of the natural color bamboo fiber high-water absorption lining paper are that the longitudinal tensile index is 12-15N-m / g, the transverse tensile index is 3-5N-m / g, the longitudinal wet tensile strength is 30-50N / m, the transverse wet tensile strength is 10-20N / m, the transverse water-absorbing quality is 45-65mm / 100s, the fixed quantity is 10-40g / m<2>, the whiteness is 35-50% ISO, the pentosan is 8% or less, the ash content is 1.0% or less, the bulkiness is 5.5-6.5cm<3> / g, the softness is 250mN or less, the bacteriostasis rate of staphylococcus aureus and escherichia coli is 99% or above, and the bacteriostasis rate of candida albicans is 98% or above.

The invention discloses a Barbus capito fry feed relating to a fish feed. The invention solves the problems of high breeding cost of Barbus capito fry fed by other fish feeds, slow Barbus capito fry weight increment and high death rate. The Barbus capito fry feed is composed of wheat short, bean pulp, fish meal, Subaokang, food meal, cottonseed meal, corn albumen powder, soybean oil, fish oil, multi-vitamin for fishes, composite trace element, choline, MgSO4.7H2O, Yiduo enzyme P8901 and sodium carboxymethylcellulose. The Barbus capito fry feed of the invention has low cost, satisfies the requirement on feeding Barbus capito fry feed, solves the problem existing in Barbus capito fry feed production, avoids the problems of high cost of other fish feeds, slow weight increment and high death rate, improves the growth speed and survival rate of the Barbus capito fry and accelerates the healthy growth of the Barbus capito fry.

The invention discloses chicken manure derived charcoal-loaded nanometer zero-valent iron particles, a preparation method of the particles and application of the particles to removal of Cr (VI) in water. The novel composite material of the chicken manure derived charcoal-loaded nanometer zero-valent iron particles comprises the chicken manure derived charcoal (CMBC) and nanometer zero-valent iron particles (nZVI) loaded on the surface of the CMBC and in pore channels of the CMBC. According to the invention, a liquid phase reduction method is adopted, CMBC is taken as a carrier, FeSO4. 7H2O is taken as ferrite, NaBH4 is taken as a reducing agent, and preparation is carried out under nitrogen protection; and the obtained material effectively inhibits easy agglomeration of nZVI, and the reaction activity of nZVI is greatly improved. The preparation and application of the composite material do not involve complex technological processes, and the composite material is wide in raw material source, low in cost and beneficial to popularization and application.

The invention discloses a culture medium of liquid deep-layer ferment manufacturing block granulose, which is characterized by the following: allocating the culture medium through lactin, peptone, magnesium sulfate and potassium dihydrogen phosphate according to certain proportion; making inclined bacteria; culturing liquid seed; fermenting liquid; considering different carbon sources, nitrogen sources and original pH values to produce the granulose.

A formula of a leather yellowing-resistant comprehensive resin relates to a leather yellowing-resistant formula, the components of the formula comprise the following raw materials in parts by weight:200-300 parts of yellowing-resistant acrylic emulsion, 100-200 parts of paraffin emulsion, 80-160 parts of a filler, 10-30 parts of a thickener, 50-100 parts of hollow polymer spheres, 10-30 parts ofa pH regulator, 10-30 parts of a defoaming agent, 50-100 parts of a preservative and 200-400 parts of water. In addition, the glossiness, the gloss retention, non-ductility and flexibility resistanceof the leather can be improved, so that the handfeel of the treated leather is comfortable; an organic solvent such as an alkylphenol polyoxyethylene ether compound is not contained in the formula, and the formula is safe and environment-friendly.

The invention provides a quantative production method for a SiO2-based biological active tissue repair material. The method comprises the following steps: mixing water and a catalyst; adding a siliconsource precursor by a liquid charging device; adding a phosphorus source precursor by using the liquid charging device; adding a calcium source precursor by using a solid charging device; adding an inorganic salt substance containing rare earth metals by using the solid charging device; forming a wet gel and carrying out room temperature ageing; then carrying out high-temperature ageing; forminga dry gel to grind in a wet manner; and drying and screening the dry gel to finally obtain the SiO2-based biological active tissue repair material which nano porosity and high specific surface area. The preparation method is simple in step, easy to control flow, low in price of materials, needed equipment is common equipment, the single output can reach kg level, and problems of unstable batches and poor repeatability in a process of preparing powder are solved effectively.

The invention discloses a method for preparing a high specific capacity and low leakage current carbon nanofiber nitrided conductive macromolecule composite material. The method mainly comprises the following steps: firstly, preparing carbon nanofibers (CNFs), subsequently adding the carbon nanofibers (CNFs) and a conductive macromolecule monomer into water-soluble carboxyl graphene suspension emulsion, further adding an oxidant solution, washing, nitriding to prepare a nitrogen doped porous carbon material, and finally secondarily modifying the nitrogen doped porous carbon material in the nitrogen doped porous carbon material, thereby preparing the high specific capacity and low leakage current carbon nanofiber nitrided conductive macromolecule composite material. By adopting the method, the nitrided conductive macromolecule composite material can be rapidly, effectively and cheaply prepared, meanwhile the nitrogen content of the nitrided conductive macromolecule composite material is ensured, the specific capacity is increased, and moreover by controlling variables such as the temperature and the nitrogen flowing speed, stable and effective reaction formation of the carbon nanofiber nitrided conductive macromolecule composite material is ensured, and the property of low leakage current is ensured.

Belonging to the technical field of reactor subcriticality measurement, the invention in particular relates to a neutron tube reactor subcriticality measurement system and method. The system consistsof: a neutron tube for neutron generation, a neutron tube control box for neutron tube control, a second industrial control computer for transmitting set parameters controlling the neutron tube to theneutron tube control box, a first neutron detector and a second neutron detector symmetrically disposed on the reactor, a collection card for collecting a second analysis signal emitted by the firstneutron detector and a third analysis signal emitted by the second neutron detector, and a first industrial control computer for spectral analysis of the analysis signals. The collection card is alsoin connection with the neutron tube control box to output a modulation signal to the neutron tube, and at the same time the modulation signal is fed back as a first analysis signal to the first industrial control computer to participate spectral analysis. The modulation signal is used for controlling the neutron tube in random generation of neutrons. The system realizes utilization of the neutrontube to replace a californium source ionization chamber to drive the reactor to do noise process measurement.

The invention discloses a preparation method of ethylene glycol gemini di-sec-octyl phthalate sodium sulfosuccinate. The preparation method of ethylene glycol gemini di-n-octyl phthalate sodium sulfosuccinate comprises the following steps: carrying out a mono-esterification reaction for combining maleic anhydride with two hydroxyls on ethylene glycol, so as to generate ethylene glycol di-maleic acid monoester, then carrying out a double-esterification reaction on ethylene glycol di-maleic acid monoester and sec-octyl alcohol to obtain ethylene glycol di-maleic anhydride di-sec-octyl phthalate, and finally carrying out a conjugate addition sulfonation reaction on ethylene glycol di-maleic anhydride di-sec-octyl phthalate and sodium hydrogen sulfite to obtain the ethylene glycol gemini di-sec-octyl phthalate sodium sulfosuccinate product, wherein a catalyst used in the mono-esterification reaction is carbon-based solid acid, and the carbon-based solid acid after the mono-esterification reaction is carried out is directly taken as a catalyst of the double-esterification reaction. The preparation method of ethylene glycol gemini di-sec-octyl phthalate sodium sulfosuccinate is simple, easy to operate and good in environmental protection property.

The invention discloses a preparation method of a titanium dioxide and zinc oxide composite modified polymethyl methacrylate antibacterial coating. The antibacterial coating is prepared from the following raw materials: acrylate emulsion, titanium dioxide, dicyclopentadiene, styrene, paraffin, coloring pigment, organic bentonite, ethyl acetate, nano-zinc oxide, a silane coupling agent KH-570, polymethyl methacrylate, 2,2-azodiisobutyronitrile, lithium hydroxide monohydrate and the like. According to the preparation method disclosed by the invention, the titanium dioxide is introduced into modified polyester resin, so that the formed hybrid material has an original photocatalytic antibacterial effect of titanium dioxide; on the basis, surface modification of the nano zinc oxide is carried out by using the silane coupling agent, and the insertion of the nano-zinc oxide is realized through simple controllable conditions at lower temperature, so that the antibacterial unicity of the titanium dioxide material is filled up and a composite multi-level adsorption antibacterial effect is achieved. The obtained coating has excellent properties of high stability, bacteriostatic and antibacterial effects, convenience in use, greenness, environment friendliness and better use value.

The invention discloses an RFID-based checkout method. The method comprises the following steps of reading the RFID tag of a commodity by a first RFID read-write device, wherein the RFID tag comprisesthe commodity information, and the first RFID read-write device transmits the commodity information to a computer; S2, conducting the settlement by the computer according to the commodity informationand prompting the payment; S3, confirming the payment result information; S4, according to the payment result information, modifying the commodity information by the first RFID read-write device; S5,reading the RFID tag of the commodity by a second RFID read-write device, and judging the account of the commodity has been settled or not according to the commodity information. By adopting the RFID-based checkout method of the invention, the non-paid commodities of a customer can be rapidly recognized. Therefore, the loss of a shop can be avoided. The multiple functions of facilitating the shopoperation and improving the shopping experience of customers are realized.

The invention relates to an inner wall light partition plate which is a cuboid-shaped block made of the components, by weight, of 35-45 parts of cement, 35-45 parts of coal ash, 10-20 parts of grading micro powder and 1-2 parts of crosslinking modification emulsion. The materials are stirred and mixed into slurry, then chemical foaming forming is carried out, then precise cutting is carried out, the partition plate with the length of 3000 mm, the width of 600 mm and the thickness of 90-120 mm is made, partition plates obtained after precision cutting are stacked on a steam trolley and enter a steam curing chamber for curing, and gridding cloth adheres to the upper plate face and the lower plate face of each partition plate obtained after steam processing. According to the inner wall light partition plate, an inner wall light partition plate automatic assembly line is used for production, production efficiency is high, cost is low, product quality is stable, the inner wall light partition plate has the advantages of being light, sound insulation is achieved, heat preservation is achieved, fire resistance is achieved, a large number of industrial residues are consumed, environment protection can be well achieved, and wide promotion prospect is achieved.

The invention discloses a multilayer printed circuit board drilling method. The method comprises the steps that a printed circuit board is selected, and a hole is drilled on the printed circuit board so that a first through hole penetrating through the multilayer printed circuit board is formed; black hole technology processing is performed on the first through hole; copper is plated in the first through hole through black hole technology processing, and the thickness of the plated copper in the first through hole is greater than the actually required thickness of the plated copper in the first through hole so that a via hole is formed; drilling is performed on the multilayer printed circuit board from a direction opposite to a segment of via hole required to be reserved so that a second hole of which the depth extends to a metal layer connected with the segment of via hole required to be reserved is formed; a hole filling agent is filled in the segment of via hole required to be reserved and the second hole; and the hole filling agent is washed so that the length of useless hole copper can be reduced, integrity of signal transmission can be guaranteed, and the problems of high process price and low efficiency caused by arrangement of blind holes and buried holes on the printed circuit board can be avoided.

The invention discloses a synthetic method of histamine dichloride, and belongs to the field of drug synthesis. The synthetic method comprises the following steps: preparing a cyano methylimidazole intermediate through oxidization of TCCA (Trichloroisocyanuric Acid) under an alkaline condition by taking L-histidine as an original raw material, and then preparing medicinal histamine dichloride through catalytic hydrogenation and one-step salifying process. In the histamine dichloride compounded through the synthetic method, the content of related substances is less than 0.5 percent, the content of a single impurity is less than 0.1 percent, and the histamine dichloride accords with medicinal level. A reagent adopted by the technology is cheap and of low-toxicity, the reaction is safe and reliable, an alcohol solvent can be recycled, after-treatment operation is simple and convenient, and the technology is environment-friendly and is beneficial for large-scale industrial production.

A filtering fiber and manufacturing method of the cigarette filter eliminates the problem in the prior art using herbage plant as the raw material that the integration of the fiber-filtering technology is not ideal and either the air permeability or the filtration capacity is too bad. The key point of the technical proposal is as follows. The filtering fiber is characterized in that the filtering fiber is fibrous bundles with a diameter of 0.01-0.1 mm, wherein the fibrous bundles are made by the blended fiber, comprising 18 to 22 percent by mass of bamboo, 48 to 52 percent by mass of straw, 18 to 22 percent by mass of stalk and 8 to 12 percent by mass of awn stick. The manufacturing method has characteristics that the materials are the herbage plants which are immerged in water for more than one day, boiled in the water of 100 DEG C for more than 2 hours and pressed by the pressing machine into pieces with the thickness of more than 0.1 mm. And the pieces are made into fibrous bundles with a diameter of 0.01-0.1 mm and then after being got rid of the odor, sterilized and dried, the fiber tows are made into filtering fiber.

The invention discloses a method for catalytic-selectively synthesizing Z- and E-alkene through alcohol supply hydrogen iridium controlled by a ligand. The method comprises the following steps: usinga disubstituted acetylene compound as a starting raw material, using cheap alcohol as a hydrogen source, and using a metal iridium catalyst MmXn for catalyzing, under the control of a phosphine ligandand a diene ligand, to obtain cis-alkene and trans-alkene in high yield and high selectivity. The method is capable of using the cheap alcohol as the hydrogen source. Compared with a traditional hydrogenation strategy, economic cost is greatly reduced, and the process is simple. A metal iridium complex catalyst does not need to be prepared in advance. The operation is convenient, the product selectivity is good, the yield is high, and the method is suitable for industrial production.

The invention relates to a production of communication terminal connected to city phone line and giving an operating guide by providing Chinese menu. According to the functional key operated by a user, the display plate of liquid crystal displays relevant hint item in Chinese menu. Ordinary display plate of liquid crystal TNL CD is adopted in the production. Several areas designed provide dot matrix display to form aprt of LCD plate. Some dozens of Chinese characters forming a functional menu in common and simple use are programmed and controlled by CPU directly. The invention provides advantage of Chinese menu with lower production cost, since it does not adopts full dot matrix display mode.

The invention relates to a full-length cloning method for pig NLRC5 gene and a fluorescent quantitative detection method for the expression quantity of pig NLRC5 gene. An NLRC5 gene is obtained through treatment and preparation of materials, extraction of RNA (Ribonucleic Acid), synthesis of cDNA and an RT-PCR (Reverse Transcription-Polymerase Chain Reaction) and 3'RACE technology; the full length of the gene cDNA is 6638bp; the open reading frame of the gene is 5538bp; 1,846 amino acids are encoded. Bioinformatics analysis shows that the homologies of pig NLRC5 gene nucleotide sequence, with cattle, sheep, macaque and human beings are about 80%. Through optimization on parameters of a real-time fluorescent quantitative PCR reaction system, an SYBR Green I fluorescent quantitative detection method for detecting the expression quantity of NLRC5 gene is established, and based on the fluorescent quantitative PCR method, the NLRC5 gene expression in pig tissue is quantitatively analyzed for the first time.

The invention discloses a mitochondrial targeting lipoid carrier Mito-A1iposome, and a compound, a preparation method and application thereof. The mitochondrial targeting lipoid carrier Mito-Aliposomecomprises an auxiliary lipid, a cationic lipid and Mito-A, wherein Mito in the Mito-Aliposome represents a mitochondrial targeting group, and A represents a high polymer material or cholesterol; theMito-A represents a mitochondrial targeting group modified high polymer material or cholesterol; and the Mito-Aliposome represents a lipoid carrier with the mitochondrial targeting group modified highpolymer material or cholesterol. The compound comprises the mitochondrial targeting lipoid carrier Mito-Aliposome and a therapeutic gene, and the compound is formed through electrostatic interactionafter co-incubation of the mitochondrial targeting lipoid carrier Mito-Aliposome and the therapeutic gene. The carrier can efficiently deliver the therapeutic gene into mitochondrial matrixes, and theeffect of radically treating eye mitochondrial gene mutation diseases is achieved.

The invention discloses a special C32 sustained-release capsule for determining the grazing intake and a preparation method thereof. The capsule content is high-purity C32 and microcrystalline cellulose, wherein the high-purity C32 and the microcrystalline cellulose are dissolved by using heptanes; C32 is uniformly dispersed and coated with microcrystalline cellulose particles; and a solvent is completely evaporated to dryness through heating at 65-70 DEG C to form a cellulose crystal containing the C32. Each finished product capsule contains 120mg of cellulose crystal which contains 60mg of C32 and 60mg of microcrystalline cellulose. The problems that the imported C32 capsule is out of stock and high in price and purchase is restricted in the process of determining the grazing intake are solved; the sustained-release capsule is simple in preparation method, low in cost and appropriate in quantity for use and can be immediately prepared in use, waste caused by blind stockpile is avoided, and the test cost is greatly reduced. Meanwhile, the imported capsule is prevented from being passively and blindly purchased, and the initiative of test control is improved.