42 results about "Homeothermy" patented technology

The invention relates to a method for preparing niobium sputtering target, which is characterized in that the preparation process sequentially comprises the steps: (1) extruding a niobium ingot with the diameter of 300-330mm to be a niobium rod with the diameter of 100-150mm at the temperature of 900-1100 DEG C, and controlling the extrusion ratio to be more than 7; (2) after heating the niobium rod to be 500-700 DEG C for homeothermy, and upsetting and reshaping the niobium rod to be a plate blank by an air hammer, wherein controlling the processing rate of the previous two times of upsettingto be more than or equal to 30%; (3) carrying out intermediate annealing on the plate blank with the annealing temperature of 900-1100 DEG C and the heat preservation time of 1-2h; (4) after annealing, rolling the plate blank, and controlling the single processing rate of the previous two times of upsetting to be more than 35% and the subsequent rolling processing rate to be more than 20%; and (5) annealing the rolled finished product. The method adopts high temperature extrusion with high processing rate, so as to lead the niobium rod to have dynamic recrystallization when in the extruding process and ensure the crystalline grains to be fully ground, so that the difference between the sizes of the crystalline grains at the core part and the edge of a cast ingot can be reduced, the orientation of the crystalline grains can be ensured to be consistent, and more than 70% (111) type texture can be obtained.

The invention provides a vertical homeothermy IT (Information Technology) cabinet, which is provided with a plurality of transverse stands, wherein the height of each transverse stand is freely adjustable, so that various IT equipment can be arranged on the stands adaptively. The cabinet further comprises a fan, an air channel, a plurality of independent adjustable air volume control values and an air outlet, wherein the fan is arranged on the upper part or lower part inside the cabinet and used for drawing cold air from outside; the air channel is arranged at one side of the cabinet along a vertical direction inside the cabinet and used for guiding the cold air introduced by the fan to each transversely arranged IT equipment; the plurality of independent adjustable air volume control valves are respectively arranged on positions, corresponding to the transverse stands, in the air channel from top to bottom so as to independently adjust the volume of air introduced into each IT equipment from the air channel and thus realize the vertical homeothermy inside the cabinet; and the air outlet is arranged on one side, opposite to the air channel, of the cabinet. According to the invention, an air cooling manner is adopted to cool the cabinet and realize the vertical homeothermy of the interior of the cabinet so as to guarantee the safe and reliable operation of the IT equipment inside the cabinet, and the cabinet is suitable for IT equipment of various specifications and power.

The invention provides an inhalation-anesthesia exposing and monitoring device, which comprises an oxygen or air-oxygen mixed-gas tank, an inhalation-anesthetic volatilizing tank, carrier-gas pipes, a gas inlet hole, an inhalation-anesthetic exposing box, a gas outlet hole, an anesthetic-gas adsorber used in a loop, a multi-parameter anesthetic-gas monitor, an animal body-temperature maintainer, a line, a line access hole, a dissecting microscope, a constant-temperature heating plate, a small-mouse fixing hole, an invasive arterial blood-pressure monitor, a heat-preserving blanket and an operating table, wherein the oxygen or air-oxygen mixed-gas tank, the inhalation-anesthetic volatilizing tank, the inhalation-anesthetic exposing box and the anesthetic-gas adsorber are connected with the multi-parameter anesthetic-gas monitor through the carrier-gas pipes, and the animal body-temperature maintainer is connected with the heat-preserving blanket. The experiments of a plurality of large / small mice can be simultaneously carried out with sufficient and sensitive heat preservation, real-time monitoring and self-heating, and the breathing conditions of the large / small mice under an anesthetic state are observed at any moment. The inhalation-anesthesia exposing and monitoring device has the advantages of reasonable design, simplicity and convenience in operation and strong controllability and not only has the function of anesthetic-concentration monitoring, but also is provided with an anesthetic absorbing device, so that the inhalation-anesthesia exposing and monitoring device is safe and environmentally friendly.

The invention belongs to the technical field of small animal anesthesia and relates to a simple economical small animal inhalation anesthesia machine which comprises a gas steel bottle, a gas adjusting valve, a three-way pipe I, a gas flow meter I, a gas flow meter II, an isoflurane gas volatilization bottle, a three-way pipe II, an adjustable three-way pipe, an anaesthetic mask, an animal body constant temperature system, an anesthesia induction box and a gas recycling bottle. The gas steel bottle is connected with the gas adjusting valve, the three-way pipe I, the gas flow meter I, the gas flow meter II, the isoflurane gas volatilization bottle, the three-way pipe II, the adjustable three-way pipe, the anaesthetic mask, the animal body constant temperature system, the anesthesia induction box and the gas recycling bottle in sequence. Using results show that the simple economical small animal inhalation anesthesia machine is simple and reasonable in structure, various parts are fixed and combined in a coordinating mode, small animals can be subjected to anesthesia control in short time or long time, accurate anesthesia depth is guaranteed, safety is good, after operation, the morbidity and the mortality of the small animals are low, and the operation success rate is high.

The invention provides a phase change radiator. The phase change radiator comprises an evaporation part and a condensation part obliquely arranged on one side of the evaporation part, wherein the evaporation part and the condensation part communicate with each other and form a sealed chamber together, and a refrigerant is injected in the sealed chamber; the evaporation part comprises a vertical substrate and liquid absorption cores arranged on the substrate, first grooves are longitudinally formed in the upper part of the substrate, the liquid absorption cores are embedded in the first grooves, and the lower parts of the liquid absorption cores are immersed in the refrigerant; radiating fins are arranged in the condensation part, and the end, close to the evaporation part, of the condensation part is lower than the end, away from the evaporation part, of the condensation part. The radiator has the advantages of small occupied space, good homeothermy, short refrigerant phase change period and excellent radiation effect, and installation requirements of power electronic devices on the radiator can be met.

The invention provides a space multi-target temperature consistency temperature-control method. The space multi-target temperature consistency temperature-control method comprises the following steps:step one, implementing homeothermy of a single machine or an assembly on the same deck through embedded heat tubes, and meanwhile, adhering temperature measuring elements and electric heaters at positions corresponding to the heat tubes on the deck to control the temperature level of the heat tubes; step two, converting temperature difference control into original code difference control to implement temperature consistency control over single machines or assemblies on different decks; and step three, carrying out a space multi-target single machine or assembly temperature consistency controlstrategy. The problem that temperature consistency of the single machines or assemblies on the different decks is poor under the condition of severe outer heat flow is solved.

The invention relates to the field of medical experiment instruments, in particular to an operating table for animal experiments, which comprises a temperature control part, a first surface of the temperature control part is provided with an operating table, the front end of the operating table is provided with an operation display unit connected with the temperature control part, and the operation display unit controls the temperature control part to maintain the temperature of the operating table within a set range and display the temperature; an operation area maintaining part, which comprises a hook draging structure and a moving structure, the hook draging structure is relatively and slidably installed on the operation table in through the moving structure, the moving structure has two or more degrees of moving freedom perpendicular to each other, and the hook draging structure is used for opening up and fixing an operation area. The operating table provided by the invention has the beneficial effects that the moving structure arranged on the operating table for the animal experiment is matched with the hook draging structure to achieve hovering at any angle, a proper visual field for a rat abdominal cavity operation is provided for an operator, the arranged temperature control part provides a constant-temperature condition for a rat, and the prognosis of the rat operation is improved.

The invention discloses a lactic acid and yeast composite bacteria constant-temperature fermented beverage for compound herbaceous plants, which comprises, by mass, 3-4% of herbaceous plants, 33-44% of nutritional auxiliary materials, 5-6% of bacterial liquid and 59-46% of purified water; the herbaceous plants comprises, by mass, 56% of fresh hawthorn, 14% of fresh pseudo-ginseng and 30% of freshlotus leaves; the nutritional auxiliary materials comprise, by mass, 75% of oligosaccharide, 10% of compound amino acid and 15% of sugar. The method comprises the following steps of: firstly carryingout grouping sterilization on a culture medium to kill bacteria carried in formula components, carrying out enzymolysis on effective components in the formula after sterilization, converting macromolecular substances into small molecular substances which can be directly absorbed by intestinal tracts of human bodies, wherein effective components can be absorbed and metabolized more fully. The metabolism function of viscera and endocrine system can be enhanced, excessive metabolic wastes and toxins in the body can be removed, and the qi and blood movement of the body can be improved so as to achieve the purpose of healthy weight reduction.

The invention discloses a heating constant-temperature device for infusion tubes for large livestock, and belongs to the technical field of livestock husbandry and veterinary medical instruments. Theintegrally pie-shaped heating constant-temperature device comprises a cover plate and a heating body. The cover plate and the heating body are hinged to each other, and the cover plate is fixed by theaid of buckles after being fastened on the heating body; the heating body comprises electric heating wires and a storage battery, the electric heating wires and the storage battery are arranged inside a shell, the storage battery is positioned at the bottom of the heating body, heat-insulation plates are arranged between the storage battery and the electric heating wires, and a charge socket anda heating switch are arranged on the side surfaces of the heating body; the front surface of the shell of the heating body is sunken to form an infusion tube groove with a plurality of U-shaped detours, the infusion tube groove is provided with circular vertical sections, the width of openings in the upper portion of the infusion tube groove is smaller than the diameter of the infusion tube groove, and the electric heating wires inside the shell are arranged on the left side, the right side and the lower side of the infusion tube groove along the trend of the infusion tube groove. The heatingconstant-temperature device has the advantages of good heating efficiency, long duration, automatic alarm, safety and practicality.

The invention provides a constant temperature and humidity perfusion device for observation of mesentery microcirculation. The constant temperature and humidity perfusion device comprises a perfusion box, a fixing plate and a temperature control device. The invention provides the application of the constant temperature and humidity perfusion device for microscopic observation of animal mesentery microcirculation at the same time. The constant temperature and humidity perfusion device is small in size and constant in temperature and humidity, a mesentery sample can be conveniently maintained clean, an experiment animal can be firmly fixed, and the constant temperature and humidity perfusion device is in close cooperation with a microscope.

The embodiment of the invention discloses a pair of physiotherapy short pants. The physiotherapy short pants have warm water thermal therapy and massage effects. The physiotherapy short pants are a layered pants body, wherein the outer layer is sealed and wrapped by insulating leather, the inner side is attached with an electric heat conduction wire and a vibrator; the middle layer is a flexible water guide pipe arranged in a skeleton shape and with a water outlet hole; a liquid is supplied by a water storage kettle arranged at the front edge of the pants body; and the inner layer is a water absorbent pants body. The physiotherapy short pants are connected with a power supply, the outer layer of the short pants and the water storage kettle are controlled to be heated by an adjustable constant-temperature temperature-control circuit; the water storage kettle is of a closed type; when the temperature reaches 40 DEG C or above, the pressure of an inner cavity of the water storage kettle jacks a water valve to supply water for the water guide pipe in the middle layer to wet the inner layer; when the liquid level of the water storage kettle is lower than the water inlet in the top end of the water valve, the residual liquid of the water storage kettle is heated to generate hot steam to supply for the inner layer, so that the lower abdominal part and the waist are subjected to thermal therapy by hot water and steam continuously; and meanwhile, the vibration mode is started, micro-vibration is generated, and the organs are enabled to obtain a massage effect, so that a good physical thermal therapy massage effect is achieved on organ diseases, such as prostatitis, and hemorrhoids and other anorectal diseases and the like in the abdominal cavity.

The invention relates to an induction preheating process for cast iron liners of aluminum cylinder bodies of a four-cylinder engine, which is characterized in that the preheating process for the liners is as follows: when a button is started, an inductor is dislodged and is vertically went down quickly at a preset speed of 1200mm / min into inner bores of the liners; when the lower end faces of four effective rings are 10mm over the lower end face of the liners, the inductor stops going down, carries out heating with the preset power of 88kW and delaying for 9.5 seconds; after the statically heating and delaying are finished, the inductor goes up at a preset speed of 300mm / min and carries out continuous scanning and heating; when the upper end faces of the four effective rings are 10mm over the upper end face of the liners, the inductor stops going up, carries out heating with the preset power of 88kW and delaying for 7 seconds; after the statically heating and delaying are finished, the inductor goes down at a preset speed of 1200mm / min into the inner bores of the liners to repeat the above preheating process again; and after twice cycle preheating processes are finished, the inductor goes up quickly at the speed of 1200mm / min to be away from the liners and back to the place. According to the invention, the distribution of axial temperature of the liners is uniform; and the external diameters of the four effective rings can be regulated simultaneously to enable the heating efficiency of the liners to be consistent, the cylinders are heated in a reciprocating heating mode, the heating and the diffusing homeothermy are carried out at the same time, the heating time is shortened, and the production efficiency is improved.

The invention discloses an intestinal content extraction supervision device, which comprises: a box body, in which a heat insulation cavity is formed; the stirring module is arranged in the heat insulation cavity; the filtering and separating module is arranged in the heat insulation cavity and is connected with the stirring module; the filtering driving module is used for driving the solution in the filtering and separating module to circularly flow so as to automatically filter and separate; the temperature control module is arranged on the heat insulation cavity and used for adjusting and controlling the temperature in the heat insulation cavity; the low-oxygen module is communicated with the heat insulation cavity and is used for detecting and controlling the oxygen partial pressure value in the heat insulation cavity; an auxiliary module; the control module is in communication connection with the stirring module, the filtering driving module, the temperature control module, the low-oxygen module and the auxiliary module; and the terminal server is in communication connection with the control module. According to the intestinal content extraction supervision device, automatic extraction of intestinal contents can be realized, the measurement accuracy is ensured, the low-oxygen and constant-temperature requirements of a coprophilous fungi collection environment are ensured, communication with the control module can be realized in real time, and supervision is realized.

The invention relates to an animal operating plate enabling high-pressure sterilization and an operating table comprising the operating plate and belongs to the animal medical equipment field. The objective of the invention is to solve problems of structural singleness, incapability of satisfying aseptic conditions and violation of animal welfare in use of an existing experimental animal operating table. The four corners of the animal operating plate enabling high-pressure sterilization of the invention are round corners, so that sterilization and disinfection can be facilitated; dirt discharge grooves are adopted, so that the collection of dirt such as animal blood and urine can be facilitated, and therefore, the clearness of the experimental table can be ensured; and the surface of the operating plate is provided with dark fringes, and the dark fringes can be used in cooperation with the dirt discharge grooves, and therefore, the flowing of the dirt such as animal blood and urine into the dirt discharge grooves can be facilitated. According to the operating table comprising the operating plate enabling high-pressure sterilization, the operating plate, a constant temperature heating layer and a bottom plate are detachably connected with one another, so that the environment of an experiment can be ensured, and the quality of the experiment can be improved; and the constant temperature heating layer can ensure that the temperature of an experimental animal body can keep constant, and therefore, the welfare of the experimental animal can be ensured.

The invention discloses an experimental device for testing the degree of thermal comfort of experimental animals. An experimental group air flue and a comparative group air flue are arranged, same experimental rods are arranged below the air outlets of the air flues, multiple retention trays are arranged at intervals on the experimental rods, and the temperature and humidity of the air which flowsout of the air outlet of the experimental group air flue can be adjusted through a thermostat and a humidistat which are arranged in the experimental group air flue and connected with control valves;the number of the experimental animals which gather on the retention trays of the experimental rods can be observed, the temperature-humidity range suitable for growth of the experimental animals canbe found out conveniently, and then the degree of thermal comfort of the experimental animals can be determined. The experimental device has a simple structure, low cost, low cost of maintenance andoperation and easy promotion and application.

The invention discloses a multifunctional closed small animal feeding experiment system, which relates to the field of small animal feeding. The system includes a fully automatic manure removal device (20), a constant temperature and humidity environment control device (30), a quantitative ventilation device (40), a breeding environment and a small animal sign detection device (50) installed in the breeding box (10). ), an automatic lifting feeding and drinking device (60) and a computer (70) arranged outside the breeding box (10); a fully automatic manure removal device (20), a constant temperature and humidity environment control device (30), and a quantitative ventilation device (40), the breeding environment and small animal sign detection device (50) and the automatic lifting feeding and drinking device (60) are respectively connected with the computer (70). The invention adopts closed breeding, is isolated from the external environment, and is convenient for variable control; uses computer control, greatly reduces labor intensity, and the collected data is accurate and reliable; it is mainly used for scientific research of small animal feeding experiments.

This application discloses a constant temperature infusion pump for endocrine in the technical field of medical devices, which includes a peristaltic device and an infusion tube. The peristaltic device includes a pump piece set and a carrier for carrying the infusion tube. The pump piece set includes multiple extrusion pump pieces. The peristaltic device is equipped with a limit heating device. The limit heating device includes a limit pump piece and a plurality of extrusion chambers. The bottom of the limit pump piece is a plane parallel to the bearing part, and the limit pump piece and the extrusion pump piece are arranged at intervals , the extrusion pump sheet is provided with an arc surface for accommodating the infusion tube, the extrusion cavity is located at the lower part of the infusion tube and embedded in the carrier; the extrusion cavity is opposite to the position of the extrusion pump sheet, and the extrusion cavity includes a heating A chamber, a spring, a U-shaped groove, and an extruding piston sheet slidably connected with the U-shaped groove. This scheme avoids the bending of the infusion tube caused by the extrusion of the pump plate group through the setting of the extrusion pump piece, the extrusion chamber and the limit pump piece, and at the same time compresses the gas to do work so that the heating chamber can heat the infusion tube.

The invention relates to a thermotherapy constant-temperature system and equipment, and belongs to the field of thermotherapy, the thermotherapy constant-temperature system comprises a coil, a water storage tank, a water inlet and outlet path and a circulating pump, and cooling liquid is stored in the water storage tank; one end of the water inlet and outlet path is matched with the coil, and the other end of the water inlet and outlet path is connected with the water storage tank; and the circulating pump is arranged in the water storage tank, and the circulating pump is arranged to drive the cooling liquid to circulate to the coil, so that the cooling liquid is in thermal contact with the coil. The device has the advantages that the temperature of the coil is controlled, and the safety of the thermal therapy process is effectively guaranteed.

The invention relates to an induction preheating process for cast iron liners of aluminum cylinder bodies of a four-cylinder engine, which is characterized in that the preheating process for the liners is as follows: when a button is started, an inductor is dislodged and is vertically went down quickly at a preset speed of 1200mm / min into inner bores of the liners; when the lower end faces of four effective rings are 10mm over the lower end face of the liners, the inductor stops going down, carries out heating with the preset power of 88kW and delaying for 9.5 seconds; after the statically heating and delaying are finished, the inductor goes up at a preset speed of 300mm / min and carries out continuous scanning and heating; when the upper end faces of the four effective rings are 10mm over the upper end face of the liners, the inductor stops going up, carries out heating with the preset power of 88kW and delaying for 7 seconds; after the statically heating and delaying are finished, the inductor goes down at a preset speed of 1200mm / min into the inner bores of the liners to repeat the above preheating process again; and after twice cycle preheating processes are finished, the inductor goes up quickly at the speed of 1200mm / min to be away from the liners and back to the place. According to the invention, the distribution of axial temperature of the liners is uniform; and the external diameters of the four effective rings can be regulated simultaneously to enable the heating efficiency of the liners to be consistent, the cylinders are heated in a reciprocating heating mode, the heating and the diffusing homeothermy are carried out at the same time, the heating time is shortened, and the production efficiency is improved.

The invention relates to a thermostatic apparatus, which belongs to the field of power battery, automatic homeothermy as well as energy conservation and environmental protection. The invention discloses a thermostatic apparatus for a multicycle power battery, and the thermostatic apparatus comprises minor cycle components and an energy-stored solution warehouse. the minor cycle components comprise a solution warehouse with an ideal temperature, a heating temperature-sensitive warehouse and a master control circuit board; the heating temperature-sensitive warehouse comprises a heating device and a temperature-sensitive apparatus; the power battery is fixed on the solution warehouse with the ideal temperature; the energy stored solution warehouse is communicated with the solution warehouse with the ideal temperature by a temperature-sensitive automatic control valve. According to the invention, the operating temperature of the power battery can be controlled in the ideal operating temperature range, energy storing and releasing can be performed by using waste heat energy, therefore the power battery in an ideal work state for long-term can be achieved, the capacity can be maintainedand the life can be prolonged. The thermostatic apparatus has the advantages of simple composition, repeated cycle usage without limited frequency, energy conservation and environmental protection, high charging efficiency, safety and reliability, convenient usage and wide usage scope, and is capable of reducing the usage cost of the power battery, thereby the economic benefit is obvious.

The invention discloses a medical constant temperature blood mixer, which comprises a mixer body with a mixing cavity inside the upper end surface, and is characterized in that: the left and right side walls of the mixing cavity are symmetrically provided with a No. 1 chute, the left and right A lifting base is slidably installed between the No. 1 chute on both sides, and a rotating cavity is provided in the lifting base, and a rotating wheel that can rotate in the lifting base is provided in the rotating cavity. During the rotation of the rotating wheel, its left and right ends can swing up and down, which is a novel matching method, so that the blood in the test tube can be mixed more evenly. In addition, the temperature of the mixing chamber is adjusted by the refrigeration device to avoid the blood from being affected by the external temperature. It ensures that the assay or detection is more accurate and scientific.

The invention discloses an anatomy platform for an animal model used by researchers in the field of necessary equipment for animal experiment research, in order to solve the defects in the prior art that the plate body cannot be heated and it is difficult to meet the constant temperature experiment conditions. In order to achieve the above purpose, the present invention The technical scheme of the invention is as follows: it includes a rectangular dissection table with a rectangular cross section, and a constant temperature heating device is provided under the dissection table; The other end of the sensor is connected to a converter that converts digital signals into electrical signals. The constant temperature numerical control device is electrically connected to the converter. The surface of the constant temperature numerical control device has a display screen, and the bottom of the display screen is provided with temperature adjustment buttons and Switch: Compared with the prior art using the clamping device, this technical solution uses a constant temperature device to control the temperature of the dissection table, which is convenient for maintaining the normal physiological temperature of the animal model and improving the verification effect of the model.

The embodiment of the invention discloses a modeling method for an animal model of migraine due to wind-heat syndrome. Swimming at normal temperature is designed to cause animal fatigue; hot air is blown in a constant temperature climate box to simulate the external wind-heat environment; and nitroglycerin is injected on the back of the neck to induce migraine-like Pathological state. In this way, an animal model of wind-heat syndrome migraine was obtained and evaluated. The results show that this method can successfully reproduce the animal model of wind-heat syndrome migraine, and the replication method has good stability and repeatability, which is in line with the guidance of the theory of traditional Chinese medicine. The present invention also relates to the animal model obtained by the modeling method.

The invention discloses application of deer tail in preparation of products for treating gout and hyperuricemia, and belongs to the field of medicines. The invention aims to effectively treat and relieve gout symptoms. According to the application of deer tail in preparation of a product for treating gout and hyperuricemia, the application is implemented as follows: cleaning sika deer tails, chopping the tails, performing drying in an electric heating constant-temperature blast drying oven, performing pulverizing, adding the product into water, carrying out heating reflux extraction at 100 DEGC to obtain a water extract, centrifuging the supernatant, taking the supernate, and repeatedly extracting the residues twice, combining the three-time supernatant, performing concentrating and drying to obtain the deer tail water extract. Pharmacological experiment results show that the deer tail water extract has the effect of resisting gouty arthritis by reducing the swelling rate of ankle joints of rats and reducing the levels of IL-1, IL-6 and TNF-alpha inflammatory factors in serum, and the deer tail water extract has the effect of inhibiting uric acid, creatinine and urea nitrogen in serum of mice suffering from hyperuricemia and has the effect of improving hyperuricemia.

The invention relates to a harmless treatment process of negative pressure dehydration and dehydration of dead animals. Aiming at the chemical production and dehydration links in the harmless treatment of dead animals, negative pressure low-temperature evaporation and vapor compression recycling technology are used to store materials at constant temperature and constant temperature. The chemical production operation is carried out under pressure; then the evaporation and dehydration is carried out under negative pressure, and the secondary steam generated by dehydration is reused as a heat source. Low-temperature dehydration is realized to avoid the evaporation of low-boiling oil with water. At the same time, the secondary vapor generated by dehydration is compressed by a steam compressor and recycled as a heat source to save energy. At the same time, the emission of waste gas mainly composed of water vapor is reduced by more than 95%.

The invention discloses an animal source food residual medicine detection method, which comprises the following steps of performing pretreatment on a sample by a QuEChERS method; performing gas chromatgraphy-mass spectrometry combined use detection, wherein according to the method of performing pretreatment on the sample by the QuEChERS method, a test sample is weighed and is put into a centrifugal pipe; ethyl acetate is added; vortex uniform mixing and centrifugation are performed; an organic layer is transferred into another centrifugal pipe; then, a ethyl acetate and ceramic homogeneous proton is added; manual oscillation and centrifugation are performed; supernates in the two times are merged; constant-temperature nitrogen blowing concentration is performed until the materials are nearly dry; acetonitrile is added for re-dissolution; vortex uniform mixing is performed; a QuEChERS purifying agent is added; vortex uniform mixing is performed; the materials pass through a filtering film and wait for machine entering testing. The method has the characteristics that the use operation is simple; the time consumption is short; the sensitivity is high; the repeatability is good. The method is suitable for large-scale application.