601 results about "Pretreatment method" patented technology

The invention relates to the technical field of low-temperature studs and bolts, and discloses a low-temperature stud steel hardenability optimization treatment method which comprises the steps of S1, a pretreatment method, S2, quenching method optimization, S3, tempering method optimization, S4, a post-treatment method and S5, a performance verification method. According to the method, the low-temperature impact stability is remarkably improved, the low-temperature impact energy of the material at about-100 DEG C can stably reach 35 J or above by accurately controlling the proportion of alloy elements and optimizing the heat treatment process (for example, the tempering temperature is increased to 640 DEG C or above and the heat preservation time is prolonged), the low-temperature impact energy is improved by about 20%-30% compared with a traditional process, and the problem that the low-temperature impact performance of the wire rod fluctuates is thoroughly solved; and the service safety in a low-temperature environment is ensured.

The invention belongs to the technical field of hydrometallurgy, and particularly relates to a pretreatment method for improving the leaching rate and the carbon adsorption rate of high-sulfur-arsenic gold ore. Comprising the following steps that the high-sulfur-arsenic gold ore is ground and then prepared into ore pulp; a green oxygen activating agent and hydrogen peroxide are sequentially added into the ore pulp, oxidation pretreatment is conducted on the high-sulfur-arsenic gold ore, ore pulp activating liquid is formed, and the green oxygen activating agent is a mixture of calcium oxide, sodium persulfate and soluble bivalent iron salt; and adding a gold leaching agent into the ore pulp activation solution, adjusting the pH value of the ore pulp to 9-12, carrying out stirring gold leaching treatment, filtering to obtain a leaching solution, and then adding activated carbon to adsorb and extract gold. According to the method, a stronger oxidation environment is provided, meanwhile, the residual concentration of arsenate radicals in the solution is effectively reduced, the leaching rate of gold and the adsorption rate of activated carbon are greatly increased, excellent oxidation performance and environment friendliness are shown, and a more sustainable high-sulfur-arsenic gold ore pretreatment process is provided.

The invention belongs to the technical field of hydrometallurgy, and particularly relates to a pretreatment method for enhancing peroxide to improve the leaching rate of high-sulfur-arsenic gold ore. Comprising the following steps that the high-sulfur-arsenic gold ore is ground and then prepared into ore pulp; an oxidizing agent is added into the ore pulp, oxidation pretreatment is conducted on the high-sulfur-arsenic gold ore under the catalytic action of ultraviolet light, and ore pulp activation liquid is formed; and the pH of the ore pulp activating solution is adjusted to 9-12, a gold leaching agent is added into the ore pulp complexing solution, and stirring gold leaching treatment is conducted. According to the method, efficient oxidation of sulfide and arsenide is achieved under the mild condition through the synergistic effect of photocatalysis and chemical oxidation, the leaching rate of gold is remarkably increased, compared with a conventional peroxide oxidation method for pretreatment, the leaching rate can be increased by 10%-35%, and meanwhile the agent use amount and environmental pollution are reduced.

The invention discloses a pretreatment method for increasing the yield of anaerobic fermentation methane of a lignocellulose material, and belongs to the technical field of high-efficiency anaerobic fermentation methane production of organic solid waste. The method comprises the following steps: (1) crushing straws; (2) mixing the straw powder and deionized water according to a mass ratio of 1: (19-21), stirring at a rotating speed of 120-180r / min, treating for 22-26h, fully and uniformly mixing, adjusting the pH value of the system to 3.4-3.7, adding 0.08-0.12 wt% of cellulase according to the mass of the straw, and carrying out enzymolysis at 49-51 DEG C for 2-4d to obtain an enzymatic hydrolysate; (3) yeast pre-fermentation: inoculating 4-6% v / v activated angel high-activity dry yeast into the enzymatic hydrolysate in the step (2) for anaerobic pre-fermentation, wherein the pre-fermentation time is 16-20 hours; and (4) anaerobic fermentation for methane production: adding 20-30% v / v of introduction sludge into the fermentation system in the step (3), and carrying out anaerobic fermentation for methane production, wherein the fermentation temperature is 36-38 DEG C. Compared with the prior art, the method has the advantages of being high in adaptability, short in treatment period, good in economic benefit, free of environmental pollution and the like, and has certain guidance and inspiration effects on engineering of producing methane from straw.

The invention belongs to the technical field of coating breeding, and particularly relates to a pretreatment method for iron powder coating breeding. Comprising the following steps: (1) mixing granular urea, calcium superphosphate and potassium chloride to obtain granular fertilizer; (2) dissolving granular fertilizer in water to prepare a granular fertilizer aqueous solution, soaking the rice seeds in the granular fertilizer aqueous solution for 3-5 hours, taking out the rice seeds, spreading the rice seeds in a shade place, and airing the rice seeds for 10-20 minutes to obtain fertilizer-soaked seeds; (3) mixing iron powder, granular fertilizer and bentonite in a powerful mixer for 5-10 minutes to obtain an iron fertilizer mixture, and rolling the iron fertilizer mixture through a high-pressure roller mill to obtain a roller-milled material; the rice seeds are coated with iron powder, so that the dead weight of the seeds is increased, the floating rate and the bird damage loss rate are greatly reduced, and the purpose of direct seeding of the rice seeds can be achieved.

The invention discloses a micro-fine particle gold ore normal-pressure alkaline leaching pretreatment method based on sodium percarbonate reinforcement, and belongs to the field of precious metal metallurgy. The method comprises the following steps: adding an oxidizing agent sodium percarbonate in batches under the condition that air is filled into ore pulp, starting to monitor the oxidation potential and the pH value of a reaction system after adding, judging that the reaction reaches the end point when the sudden drop amplitude of the oxidation potential of the ore pulp within one hour is greater than or equal to 30mV and the pH value is increased by 0.3-0.5 unit, and stopping aeration to finish pretreatment; in the segmented oxidation process, the oxidation potential is controlled within the range of + 520 mV to + 550 mV by dynamically adjusting the air charging rate. According to the basic technical scheme, the gold leaching rate reaches 86.01%, the gold leaching rate reaches up to 88.92% through the optimized technical scheme, and the utilization rate of gold ore resources is remarkably increased.

The invention discloses a heterogeneous Fenton-like catalyst, a preparation method, a reaction device and a pretreatment method thereof. According to the catalyst, high-iron-content ash is used as a base material, porous magnetic particles of 3-5 mm are prepared through biomass reduction, magnetic separation enrichment, bonding granulation and roasting, the specific surface area is 200-300 m < 2 > / g, and the porosity is 70-80%. The device is of a closed vertical three-area structure, a pipeline mixer and a tangential nozzle are adopted to form rotational flow, and a gas collecting hood collects waste gas and is provided with a backwashing loop from bottom to top. During operation, H2O2 is added according to 1-1.5 times of the COD (Chemical Oxygen Demand) of inlet water under the nearly neutral condition that the pH value is 5-7, and the catalyst stays for 30-60 minutes, so that high-salt high-chlorine refractory organic wastewater can be efficiently degraded, iron mud can be reduced, backwashing and recycling are easy, the operation cost is reduced, and the method has engineering popularization value and is stable and reliable in operation.

A method of pretreatment of a sample containing a cell for mass spectrometry, including contacting the cell with a first acidic solution containing an organic acid; and extracting a cytoplasmic component of the cell by heating the cell in contact with the first acidic solution.

The invention provides a method for recovering scandium from scandium-containing lithium slag and a pretreatment method of the scandium-containing lithium slag. The method for recovering scandium from the scandium-containing lithium slag comprises the following steps: mixing the scandium-containing lithium slag with concentrated sulfuric acid, and heating and roasting to obtain a roasted product; the roasted product is subjected to water leaching, and scandium-containing leaching liquid and leaching residues are obtained; the scandium-containing leachate is extracted, and a scandium-containing organic phase and raffinate are obtained; washing the scandium-containing organic phase to obtain a purified scandium-containing organic phase and a washing solution; carrying out reverse extraction on the purified scandium-containing organic phase, and filtering to obtain a reverse extract; the reverse extract is subjected to acid dissolution, and a scandium-containing acid solution is obtained; adding oxalic acid into the scandium-containing acid solution for precipitation, filtering to obtain scandium oxalate precipitation, and roasting to obtain scandium oxide.

The invention relates to the technical field of iodide content detection, in particular to a method for determining radiochemical purity and iodine content of sodium iodide capsules for diagnosis by HPLC (High Performance Liquid Chromatography), which comprises the following steps: setting chromatographic conditions, and connecting a radioactive flow detector and an ultraviolet detector in series; preparing a disodium hydrogen phosphate solution, a glucose solution, a vitamin C solution, a first control solution, a potassium iodate solution, a second control solution, a carrier solution, a first sample solution, a second sample solution, a negative control solution and a test solution; and determining the radiochemical purity and iodide content of the first sample solution and the second sample solution in three batches based on the chromatographic conditions and the determination standard. According to the method, test parameters such as capsule sample analysis time, a pretreatment mode and a sample size are optimized, the radiochemical purity of the capsule is accurately determined, and the iodide content is controlled, so that the problem that main components cannot be accurately quantified and potential radioactive impurities cannot be detected by a traditional diagnosis sodium iodide [131I] capsule determination method is solved.

The invention discloses a pretreatment method for improving water-retaining property and tenderness of low-temperature slowly-cooked chicken, and relates to the technical field of food processing.The pretreatment method comprises the steps that a chicken raw material is prepared, and unfreezing, surface drying and finishing treatment are conducted; the method comprises the following steps: soaking chicken in a pre-cooled weak acid solution to preliminarily relax a protein structure; transferring the chicken into a pre-cooled weak alkaline solution, promoting protein to be fully hydrated, and establishing an electrostatic repulsion network; immersing chicken in a precooled polysaccharide solution, and permeating to form a thermostable hydrophilic protective layer; and draining the chicken, performing vacuum packaging, and performing low-temperature slow cooking with precise temperature control. According to the method, the low-temperature slowly-cooked chicken can keep a stable hydration structure in the cooking process through a method for regulating protein and constructing an interface protection layer in stages, so that the water-retaining property, tenderness and flavor fusion degree of a finished product are improved.

The invention relates to the technical field of oxidation treatment of powder metallurgy products, and discloses a surface oxidation treatment device for high-airtightness powder metallurgy products, which comprises a pretreatment mechanism, one end of the pretreatment mechanism is fixedly connected with a steam treatment furnace, and a conveying mechanism is mounted between the pretreatment mechanism and the steam treatment furnace; a powder metallurgy product assembly is conveyed on the conveying mechanism; the pretreatment mechanism comprises a first machine body, an outer shell, a ventilation shell, a vacuum assembly and a first steam assembly, the outer shell is connected to the upper side of the first machine body, and the ventilation shell is fixedly connected to the inner side of the outer shell. According to the active pretreatment method, the closed cavity is vacuumized firstly to form negative pressure, then low-temperature steam is injected, and the steam is forcibly and rapidly permeated into all the deep holes of the powder metallurgy product through the pressure difference. The problem of non-uniform permeation caused by obstruction of residual air in pores in traditional direct steam treatment is fundamentally solved.

This invention belongs to the field of bile acid detection technology, and discloses a sample pretreatment method for determining the content of bile acid subtypes and its application. The pretreatment method includes the following steps: S1, acidifying the sample to be tested with an acidifying agent to a pH of 2-4 to obtain an acidified sample; S2, eluting the acidified sample onto a mixed-mode anion exchange column to obtain an eluent; S3, evaporating the eluent and reconstituted with a rehydration solution to obtain the test sample. The test sample obtained by this pretreatment method can effectively eliminate or compensate for matrix interference when used for targeted analysis of bile acid subtypes by LC-MS / MS, thus effectively improving detection sensitivity.

The invention belongs to the technical field of sodium ion batteries, and provides a method for preparing biomass-based hard carbon by pretreating paper pulp fibers to change the beating degree, a negative electrode material and a sodium ion battery. According to the method, the bamboo pulp fiber is used as a biomass precursor, the beating degree is accurately regulated and controlled, the form and structure of the bamboo pulp fiber are changed, and then carbonization treatment is performed, so that the hard carbon material with excellent sodium storage performance is obtained and is used for the negative electrode of the sodium-ion battery. The pretreatment method is easy and convenient to operate, harmful substances are not introduced in the whole treatment process, and the concept of green chemistry and sustainable development is met. The hard carbon negative electrode material prepared by the method shows excellent sodium storage performance in practical application of the sodium-ion battery, and the comprehensive performance of the sodium-ion battery can be effectively improved.

The invention belongs to the field of detection, and particularly relates to a method for detecting the migration amount of nine metals in a cosmetic packaging material and application of the method. The method comprises the following steps: sample acquisition: taking cosmetic simulation liquid; sample migration; sample pretreatment: taking the cosmetic simulation liquid in the packing material, and respectively carrying out the following treatments: filtering the acid-containing cosmetic simulation liquid through a filter membrane; heating the alcohol-containing cosmetic simulation liquid to be nearly dry, fixing the volume by using nitric acid, and filtering; adding nitric acid into the oil-containing cosmetic simulation liquid, heating for pre-digestion, cooling to room temperature after the pre-digestion is completed, carrying out microwave digestion, heating until no yellow smoke is generated after the digestion is completed, fixing the volume by using deionized water, and filtering; an ICP-MS instrument is adopted for testing, and data acquisition and processing are carried out; and preparing a standard solution, and calculating to obtain the content of each element. Nine elements can be detected at the same time, and the detection efficiency can be effectively improved; the pretreatment method is designed for different cosmetic simulation liquids, and the detection accuracy can be improved.

A quantitative detection method of thallium content in converter graphite ball, steps include: 1) the pretreatment of converter graphite ball; 2) the preparation of standard solution series; 3) the detection of thallium content in converter graphite ball.The application finds that the suitable pretreatment method of converter graphite ball is carbon removal by burning, and then high-chloric acid and dilute nitric acid are used to dissolve salt, by which the converter graphite ball can be completely dissolved, thereby the stability of quantitative determination of thallium content in converter graphite ball is improved, the pretreatment method is simple, fast and operable; the method is suitable for the quantitative detection of thallium content in converter graphite ball with thallium content not less than 0.0062 μg / L, the recovery rate of thallium is as high as 99.1%, the analysis accuracy is high, the detection lower limit is as low as ppb level, the sensitivity is high, and the method has the advantages of simple operation, simple analysis condition and low labor intensity.Therefore, the application has significant economic benefits and the advantages of simplicity and economy.

To provide a method of pretreating an electrolyte film suitable for forming a metallic film.SOLUTION: There is provided a method of pretreating an electrolyte film 13 to be used in a film forming device 1 for forming a metallic film F on a base material B. The electrolyte film 13 is attached to a device body 1A of the film forming device 1, and is used upon forming the metallic film F on the base material B by electrolytic plating in a state of contacting with the base material B. The pretreatment method includes a swelling step S2 of swelling the electrolyte film 13 by heating the electrolyte film 13 under a humidified atmosphere, and a storage step S4 of immersing the swollen electrolyte film 13 in pure water W to store the electrolyte film.SELECTED DRAWING: Figure 1

The invention relates to the technical field of detection devices, and discloses a non-spectral detection device and a carbon dioxide extraction sampling detection method.The non-spectral detection device comprises a base pipe and a detector fixed to the base pipe, an air pump assembly is fixed to the top of the detector, and an air inlet pipe is installed at the input end of the air pump assembly; one end of the gas inlet pipe penetrates through the base pipe and extends into the base pipe, a probe is installed at the end, located in the base pipe, of the gas inlet pipe, and the gas pump assembly is used for conveying gas in the base pipe into a detector. By arranging the air pump assembly, air can be pumped into the paper detector, by arranging the waste heat assembly, the air can be preheated, the situation that the air is condensed in a pipeline to cause blockage is avoided, by arranging the water absorption assembly, moisture in the air is absorbed by a moisture absorber, and the water absorption efficiency is improved. The detector can be prevented from being corroded by acidic substances formed after water vapor is doped with gas, the detection effect is guaranteed through the pre-treatment mode of preheating and water absorption, and the service life of equipment is prolonged.

An analytical pretreatment method for analysis of samples includes: preparing an emulsion including oil, and a first droplet and a second droplet being present in the oil and containing a first sample and a second sample respectively; placing, on a substrate, an aggregate of the first droplet and the second droplet in the emulsion; and evaporating the oil and water on the substrate to separate a first evaporation residue and a second evaporation residue from each other that include the first sample and the second sample respectively.

The invention discloses a pretreatment method for recycling phosphorus in sludge, which is characterized in that the sludge is subjected to reduction treatment by adopting aerobic biological decomposition drying, phosphorus is screened and fixed, and then phosphorus is recycled through pickling, the pretreatment method for recycling phosphorus in sludge is provided, the method is simple to operate, the cost is low, and the method is suitable for industrial production. The sludge is subjected to reduction treatment, resource recovery of phosphorus in the sludge is realized, and the problem of environmental pollution caused by loss of phosphorus in wastewater is prevented.

The invention provides an aluminum alloy pretreatment method based on complex reaction, which comprises the following steps: S1, polishing an LDH (Layered Double Hydroxides) growth surface by using abrasive paper, and cleaning and drying; s2, preparing a complexing agent solution, wherein a complexing agent is selected from at least one of tannic acid, gallic acid and protocatechuic acid; s3, the aluminum alloy sample treated in the step S1 is put into the complexing agent solution in the step S2, and constant potential is applied to the aluminum alloy; s4, preparing a mixed solution of Zn (NO3) 2.6 H2O and NH4NO3, and adding an ammonia water solution to adjust the pH value to 6-6.5; s5, immersing the aluminum alloy treated in the step S3 into the mixed solution in the step S4, and putting the aluminum alloy into a constant-temperature water bath kettle to generate a Zn-Al-LDH film; and S6, after the hydrothermal reaction is finished, cooling to room temperature, and washing and drying the obtained reaction product. The surface of the aluminum alloy is pretreated through the complexing agent, the potential between an intermetallic compound and an aluminum matrix can be effectively balanced, the micro-couple effect is fundamentally inhibited, and ideal conditions are created for uniform, compact and defect-free growth of LDH.

The method comprises the following steps: uniformly mixing a plurality of proton organic solvents with an acidic additive and a magnesium-containing additive, adding a biomass raw material pretreated by using a water-phase microwave method, mixing, putting into a reaction kettle, introducing nitrogen with a certain pressure for protection, and reacting for 2-4 hours; reacting for a period of time at a certain temperature, drying filter residues obtained by filtering to obtain a cellulose-rich component, adding water into filtrate to separate out lignin, and enabling the filtrate to mainly contain hemicelluloses and decomposition products thereof. According to the pretreatment method, the lignin removal rate and the cellulose retention rate of the lignocellulose in the biomass raw material are improved, and the obtained cellulose is generally good in quality.

The application discloses a preparation method of an aluminum shielding tape surface conductive self-repairing coating. First, a clean aluminum shielding tape surface is obtained through an in-situ reduction / etching pretreatment method based on an aluminum salt / fluoride salt compound solution; second, a conductive / self-repairing dual-effect enhancer is prepared and introduced into a conductive / self-repairing coating synthesized by polyether amine, diisocyanate, a multiple active amine compound, p-xylene glycol and aniline; finally, the solid content of the coating is adjusted and sprayed on the clean aluminum shielding tape surface to obtain the conductive self-repairing coating. The application converts the Al2O3 film on the aluminum surface into a new substance Al, simultaneously constructs a regular porous structure, increases the bonding strength of the film layer, improves the adaptability and self-repairing efficiency of the coating in cable manufacturing and subsequent operation through the construction of a coating with multiple dynamic hydrogen bonds and imine bond synergistic effect, and realizes good conductive enhancement effect and rapid thermal self-repairing purpose of the coating by using isocyanate modified carbon nanotubes as the enhancer.

The invention relates to the technical field of solid waste treatment, in particular to a pickling fly ash pretreatment method, which comprises the steps of storage and transportation, constant volume extraction, water washing, water washing filtrate treatment, drying and dioxin detoxification, takes enhanced pickling pretreatment as a core, and integrates the technologies of efficient solid-liquid separation, multi-stage water washing, MVR wastewater zero discharge treatment and reuse, dioxin high-temperature detoxification and the like. The method aims at solving the problems that in traditional fly ash treatment, harmful substances such as chlorides, heavy metals and dioxin are not thoroughly removed, stabilization is insufficient, water consumption is large, high-salinity wastewater discharge pressure is high, and resource utilization is limited. By adopting the technical scheme, harmful substances such as chlorides, heavy metals and dioxin in the fly ash can be thoroughly removed and stabilized, the problems of high water consumption and high-salinity wastewater are solved, and the resource utilization value of the fly ash and the environmental safety are remarkably improved.

This invention provides a pretreatment method for detecting metribuzin in soil and broad beans using liquid chromatography-mass spectrometry (LC-MS / MS). The method includes: weighing 10.0 g of soil into a 50.0 ml centrifuge tube, adding 10.0 ml of acetonitrile, vortexing for 3.0 min, adding 3.0 g of NaCl, vortexing for 1.0 min, centrifuging at 5000 rpm for 5.0 min, taking 1.5 ml of the supernatant and adding it to a 2.5 ml centrifuge tube containing 25.0 mg PSA, 25.0 mg C18, and 100 mg anhydrous MgSO4, vortexing for 1.0 min, centrifuging at 8000 rpm for 3.0 min, aspirating the supernatant with a 5.0 ml syringe, filtering through a membrane, and transferring to a 2.5 ml brown sample bottle. This invention is applicable to the detection of metribuzin residues in broad beans, a specialty crop grown in high-altitude regions.

The application discloses a pretreatment device and method for kitchen organic slurry, and belongs to the technical field of organic garbage treatment. The pretreatment device comprises a homogenate reactor, a high-pressure pyrolysis reactor and a flash evaporation reactor which are sequentially connected. Different temperature treatments are arranged in the homogenate reactor, the high-pressure pyrolysis reactor and the flash evaporation reactor through the pretreatment device, so that the cell walls of organic matter in the kitchen organic slurry are broken, the biodegradability of the slurry is improved, and subsequent anaerobic fermentation treatment is facilitated.

The invention provides an automatic urine sample preprocessing method and system for pharmacokinetic parameter calculation. The method is realized through an integrated automatic process as follows: identifying a urine cup with an identity label, transferring a urine sample to a measuring cylinder, accurately measuring the volume of urine by using a sensor, adding a stabilizing solution according to a preset proportion, then performing standardized mixing to form a mixed solution, and finally sub-packaging the mixed solution into a cryopreservation tube in a high-flux manner. The technical problem that in the prior art, due to manual operation, urine volume measurement is not accurate, medicine components are degraded after being in vitro, data tracing is difficult and the like is solved, and finally the technical pain point that key pharmacokinetic parameter calculation results are seriously inaccurate is caused. By providing a high-precision and high-reproducibility qualified sample, the quality of subsequent analysis data is guaranteed from the source, and the accuracy, research efficiency and data compliance of PK parameter calculation are remarkably improved.

The present application relates to the technical field of analytical detection, and in particular to a detection method of Geobacillus thermophilus in raw milk based on real-time fluorescent quantitative polymerase chain reaction. The detection method of the present application is based on nucleic acid specific detection mechanism, which replaces the phenotype culture mechanism, realizes the rapid and accurate quantification of the target bacteria, and replaces the time-consuming and inaccurate colony counting. Through the design of specific primers and probes, the species level specificity identification is realized, and the problem that the traditional method cannot distinguish the specific contaminated bacteria is solved. Through the optimization of the pretreatment method, the sensitivity of the detection method is greatly improved. The detection method of the present application shortens the detection time, realizes the leap from "days" to "hours", greatly improves the detection efficiency, and has a wide application prospect.

A pretreatment method for a lithium-containing solution, according to the present invention, comprises: an adsorption step of passing a lithium-containing solution through an adsorbent so as to obtain a lithium-adsorbed adsorbent; a washing step of passing a pretreatment solution containing divalent cations through the lithium-adsorbed adsorbent, so as to remove impurities; a desorption step of passing a medium through the lithium-adsorbed adsorbent so as to obtain a lithium-containing desorption solution; and a step of injecting the lithium-containing desorption solution into an electrodialysis device so as to obtain a lithium hydroxide aqueous solution.

The invention discloses a pretreatment method for an alloy performance test. The method comprises the following steps: determining the weight of first mixed resin and the weight of second mixed resin based on the weight ratio of the first mixed resin to the second mixed resin in a to-be-tested alloy and the weight of the required to-be-tested alloy; based on the weight of the first mixed resin, preparing the first mixed resin according to the weight ratio of the first resin to the titanium dioxide in the first mixed resin; based on the weight of the second mixed resin, preparing the second mixed resin according to the weight ratio of second resin to titanium dioxide in the second mixed resin; mixing the first mixed resin and the second mixed resin to obtain the alloy to be detected; and testing the performance of the alloy to be tested. According to the scheme provided by the invention, the process is simple and convenient, the applicability is high, the finally obtained alloy to be detected can meet the requirements of performance detection through clear weight ratio calculation and standard preparation steps, and good production application and popularization prospects are embodied.