35results about How to "Meet applicability" patented technology

The invention provides a method for quickly determining the fertilization amount of cabbage. The method comprises the following steps: 1) determining the target yield of cabbage according to the previous cabbage yield level of a plot; 2) determining the nutrient supply grade of soil and the yield responses of nitrogen, phosphorus and potassium nutrients; 3) calculating the recommended fertilization amounts of nitrogen, phosphorus and potassium needed for achieving the target yield of cabbage on the basis of fertilizer demands for basic yield, the yield responses, agronomic efficiency, the nutrient supply grade of soil, and the balance factors of nutrient residues in the preceding crops returning to a field and crops in the season; and 4) carrying out fertilization on cabbage according to the recommended fertilization amounts. The method of the invention can resolve contradictions among crop yield, environmental protection and sustainable use of farmland; and on the basis of guaranteeing crop yield, the method coordinates the balanced feeding of N, P and K elements, improves fertilizer utilization efficiency and reduces the environmental loss of nutrients. The method is applicable to recommended fertilization of cabbages planted in field pieces of different sizes, and has the advantages of good timeliness, simplicity, economic performance, easiness in mastering, a wide application scope, etc.

The invention presents a method and a device for estimating the state of charge based on an electric vehicle. The method comprises the following steps: conducting an HPPC experiment on the power battery of an electric vehicle in advance, and getting a first function relation between the open circuit voltage and the state of charge and a second function relation between the DC internal resistance and the state of charge through fitting according to the experimental result; substituting measured values of open circuit voltage of the power battery in multiple cycles to the first function relation to get calculated values of state of charge in multiple cycles; substituting the calculated values of state of charge in multiple cycles to the second function relation to get calculated values of DC internal resistance in multiple cycles; and carrying out recursive estimation through use of an observation equation and a state equation of an extended Calman filter algorithm to get an estimated value of state of charge. The technical problem that the estimation accuracy of state of charge is low and cannot meet the applicability of project development in the prior art is solved.

The invention provides fast-curing epoxy resin suitable for HP-RTM (high pressure-resin transfer molding) and a preparation method. The fast-curing epoxy resin is prepared from low-viscosity epoxy resin, a diluent and a modified curing agent, wherein room-temperature viscosity of the low-viscosity epoxy resin is not higher than 2500 mPa.s, epoxy value of the low-viscosity epoxy resin is not lowerthan 0.6, room-temperature viscosity of the diluent is not higher than 100 mPa.s, and the use quantity of the modified curing agent is 5%-15% of the total mass of the epoxy resin. By means of reasonable selection and matching of modified imidazole and a special modified alicyclic amine curing system, the curing time is shorter and is only 5-10 min, besides, the curing reaction is stable, fast curing molding of a resin based composite material can be realized, production efficiency is improved, and production cost is reduced.

The invention discloses a sensitive probe as well as a preparation method and a method for detecting salmonella enteritidis by virtue of the sensitive probe, relates to a probe, a preparation method and application of the probe, and aims to solve the problems of high cost, instability, high deactivation rate of an antibody and poor sensitivity of an existing probe. The sensitive probe is prepared from antibiotics and a signal carrier. The preparation method comprises the following steps: 1, preparing yellowish-brown emulsion; 2, preparing a carboxylated immunomagnetic bead; 3, preparing an activated magnetic microsphere; 4, adding a resuspension solution for storage. The method for detecting the salmonella enteritidis by virtue of the sensitive probe comprises the following steps: 1, preparing an immunochromatographic test strip for the salmonella enteritidis; 2, mixing liquid to be detected and the sensitive probe for incubation, adding dropwise a mixed solution onto a sample pad of the immunochromatographic test strip for the salmonella enteritidis, performing reaction for 10 minutes, and reading a result. According to the sensitive probe, the preparation method and the detection method, only one antibody is struck on a nitrocellulose membrane for direct detection, so that the cost is greatly reduced, and simplicity and convenience are achieved; the sensitive probe, the preparation method and the detection method are applied to detection of the salmonella enteritidis.

The novel bra support includes two arced steel rings with two inner ends connected with hot shrinking casing of polyethylene so as to form one W-shaped structure. The connecting hot shrinking casing can prevent the inner ends of the steel rings from piercing bra support sleeve and injuring body and reduce the pushing force to breast ditch. The present invention makes the bra safe and comfortable.

Embodiments of the invention disclose a gas-steam combined cycle heat-power cogeneration unit comprising a first gas turbine, a second gas turbine, a first waste heat boiler, a second waste heat boiler, and a steam turbine. The first and second gas turbines are axially arranged in parallel. The first waste heat boiler is connected with the first gas turbine. The second waste heat boiler is connected with the second gas turbine. The steam turbine is perpendicular to the axial directions of the first and second gas turbines, disposed between the first and second gas turbines, and connected with the first and second waste heat boilers through a thermal system pipeline. The first gas turbine, the second gas turbine and the steam turbine are all arranged on a same operating platform. The gas turbines and the steam turbine are arranged on the same operating platform, so that system operation and maintenance is facilitated, applicability to production and operation is fully satisfied, workshops are cut through, a crane is shared and expansion of the workshops is facilitated.

The invention discloses a water cooling photovoltatic-optothermal integrated power generation system generating capacity calculation method and system. The method comprises the following steps: determining a photovoltaic generating panel unit area under the condition that a water cooling condition is not taken and a first panel surface temperature of a photovoltaic generating panel under unit output power; calculating a photovoltaic generating panel unit area in a first period when the water cooling condition is taken and a second panel surface temperature of the photovoltaic generating panel under the unit output power; calculating a generating efficiency increase value of the photovoltaic generating panel in the first period when the water cooling condition is taken; calculating a prediction period corresponding to the first period and corresponding output power of the photovoltaic generating panel; calculating a generating capacity of the photovoltaic generating panel in the prediction period; calculating a high-temperature high-pressure steam amount of an optothermal generating system in the first period, and according to the high-temperature high-pressure steam amount, calculating a generating capacity of the optothermal generating system; and calculating a generating capacity of a water cooling photovoltatic-optothermal integrated power generation system. According to the invention, the generating capacity of the water cooling photovoltatic-optothermal integrated power generation system can be accurately predicted.

The invention belongs to the technical field of nuclear radiation evaluation, and relates to a method for evaluating atmospheric influences caused by airborne emission of liquid-state radioactive effluents of nuclear power plants. The method comprises the following steps of: (1) plant site geographic information data and meteorological data acquisition, and three-dimensional meteorological field simulation; (2) cooling tower parameter acquisition and smoke plume lifting simulation; (3) calculation of smoke plume concentrations in a cavity area and a wake flow area; and (4) ground concentrationfield calculation. By utilizing the method, influences, on atmospheric dispersion of airborne radioactive effluents, of cooling tower emission source features and inland plant site complicated meteorological conditions can be comprehensively considered, so that reliable input is provided for evaluating radioactive influences of an emission scheme for converting liquid-state radioactive effluentsof nuclear power plants into gas state through cooling towers, and the evaluation results satisfy the requirements, for model applicability and calculation result reliability, of practical application.

The invention discloses a current loop communication circuit and an air conditioner and belongs to the technical field of electronic circuitry. The current loop communication circuit comprises first and second current loop communication circuits; the first current loop communication circuit includes a power supply circuit, a current loop communication control circuit and an overcurrent detection circuit; the power supply circuit includes a switching power supply transformer, a diode and an RC (resistor-capacitor) low-pass filter circuit; switching power is directly output by the diode after rectifying; power voltage is acquired through RC smooth filtering; the second current loop communication circuit includes a current loop control circuit and an overcurrent detection circuit; the opticalcoupling output end of the overcurrent detection circuit is connected with a controller to output a corresponding protective low level, thereby reminding a user of online line adapting errors. The current loop communication circuit that is low in cost helps solve the problem that electrical appliances, such as a variable frequency air conditioner, has low loss in communication; a warning functionfor mistaken line distributing is added, so that fault diagnosis and recording are provided i case of indoor and outdoor communication wiring errors.

The invention discloses a detection method of an L-2-amino-5-guanidinovaleric acid enantiomer and belongs to the technical field of food and drug analysis. The method mainly comprises the following steps: preparing a system applicable solution; preparing an enantiomer reference solution; preparing a test solution; preparing a derivatizing reagent; performing pre-column derivatization and chromatographic condition and system suitability tests; determining the L-2-amino-5-guanidinovaleric acid enantiomer. The detection method has higher sensitivity, accuracy, precision and durability, can accurately reflect content of the L-2-amino-5-guanidinovaleric acid enantiomer and is applicable to detection and quality control of the L-2-amino-5-guanidinovaleric acid enantiomer in industry, so that reference is provided for setting reasonable quality standards, product quality can be controlled and mastered better, and edible and medicinal safety is guaranteed.

The invention relates to a back-to-back mail distribution method, a back-to-back mail distribution system and a back-to-back mail distribution device, belongs to the technical field of e-mail transmission, and solves the problems of large workload, high error rate and the like of manual mail distribution in the prior art. The method comprises: obtaining a to-be-forwarded original mail; analyzing an attachment of the original mail to obtain at least one unit name corresponding to the attachment file of the original mail; obtaining a recipient mail address corresponding to the attachment file based on the at least one unit name; and distributing the attachment file to a recipient mail address corresponding to the attachment file. Autonomous distribution of mails is realized, the workload ofa user is reduced, and the working efficiency is improved.

The invention provides a key identification method and system of a matrix keyboard. The method comprises the steps that after the keyboard is powered on, a main control chip of the keyboard enters a low-power-consumption mode; after keys are pressed down, rows and columns where the keys are located are triggered and connected; row IO generates a level sudden change signal, and the level sudden change signal awakens the main control chip through input IO and triggers IO interruption; and the main control chip positions the key position to obtain a key trigger signal, carries out jitter detection on the key trigger signal to judge whether the key trigger signal is effectively triggered or not, if so, the key action of the key position is taken as a key identification result, otherwise, the key identification fails, and the main control chip enters a low-power-consumption mode. According to the invention, the multi-key awakening detection of the matrix can be realized under the conditionsof ultra-low power consumption and insufficient IO interruption, and the identification of the combined key is supported.

The invention relates to a power cable and especially relates to a single-core stranded power cable. The invention discloses a 10 kilovolt (KV) single-core stranded cluster crosslinking polyethylene insulation flame retardation power cable. The single core cable comprises: a conductor wire core, a conductor shielding layer, an insulating layer, an insulation shielding layer a metal shielding layer which is arranged out of the insulation shielding layer, an outer sheath which is arranged out of the metal shielding layer, and at least two single core cables which are formed through stranding. The power cable of the invention has a simple and reasonable structure and is easy to be produced. Flexibility is raised and a bending radius requirement can be reduced. Installation and maintenance are convenient. A transmission capacity is raised. The power cable can be used in important occasions, such as a power plant, a power transmission line and the like.

The invention discloses a universal application circuit for three-phase, two-phase and single-phase resistance sampling and a method. The circuit comprises a rectifier bridge which is used for converting an input alternating current into a pulsating direct current, a filtering voltage stabilizing circuit which is used for filtering the direct current and stabilizing the bus voltage of the direct current, an inverter circuit which is used for converting the direct current into alternating current; a sampling circuit which is used for sampling the alternating current; and a sampling amplification circuit which is used for amplifying the voltage obtained by sampling. A universal adaptive structure is adopted in hardware, a user can conveniently switch a three-resistor system, a two-resistor system and a single-resistor system, a PCB does not need to be changed any more; a larger selection space is provided for cost and efficiency under different occasion application conditions; users withdifferent requirements are better met. The circuit and method are more flexible and applicable, and can be widely applied to the technical field of resistance sampling detection.

The invention provides a water hydraulic system of a multifunctional submersible. The water hydraulic system comprises a power source, a flotage and posture regulating mechanism and an operating mechanism, wherein the power source mainly comprises a motor, a hydraulic pump and a solenoid directional valve; the flotage and posture regulating mechanism mainly comprises a plurality of water ballast tanks and balanced valves; through injecting water into and draining off water from different tanks, not only the flotage regulation on the submersible is realized, but also trim control and heel control are realized, so that the single independent systems for flotage regulation and trim and heel control are integrated into a unified system; and in addition, under the matching of all the valves, the operating mechanism can be driven to finish underwater operation. The water hydraulic system can provide water sources of different flow and pressure so as to meet the requirements of different types of working tools on the power source; and meanwhile, the water hydraulic system enables flotage regulation and trim and heel control to have different performances in different water depths, namely the water hydraulic system can meet deep-depth applicability and shallow-depth fast response.

A concrete hinge joint structure provided with intersecting shearing-resistant reinforcing steel bars comprises a hinge joint body formed by connecting the bottoms of a first hollow slab girder and asecond hollow slab girder, wherein protruding blocks are arranged on the two sides of the bottoms of the first hollow slab girder and the second hollow slab girder. The multiple first upper high-strength reinforcing steel bars inclining upwards at a certain angle relative to the horizontal direction are evenly arranged on the upper portion of the first hollow slab girder in the extension directionof the hinge joint body. The multiple second upper high-strength reinforcing steel bars inclining upwards at a certain angle relative to the horizontal direction are evenly arranged on the upper portion of the second hollow slab girder in the extension direction of the hinge joint body. The multiple first lower high-strength reinforcing steel bars are evenly arranged on the lower portion of the first hollow slab girder in the extension direction of the hinge joint body. The multiple second lower high-strength reinforcing steel bars are evenly arranged on the lower portion of the second hollowslab girder in the extension direction of the hinge joint body. By the adoption of the provided concrete hinge joint structure provided with the intersecting shearing-resistant reinforcing steel barsand a construction method of the concrete hinge joint structure, the problems that the shear performance is poor and construction is inconvenient can be solved, the shear capacity of a hinge joint isimproved, and construction is greatly simplified.

The invention discloses granules of a traditional Chinese medicine composition for reducing blood fat and softening blood vessels and a granulation method thereof, belongs to the technical field of traditional Chinese medicine and natural medicine processing, and solves the problems in the prior art of preparation molding difficulty, long production cycle, high loss of active ingredients and poordissolubility. The granulation method comprises the step a of concentrating an aqueous extract of cassia seeds and hawthorn fruit to clearing paste; the step b of concentrating an alcohol extract of lotus leaves and polygonum multiflorum to the clearing paste; the step c of mixing the clearing paste in the step a and the step b with powdered sugar, combining a spraying granulation method and a swing granulation method, and drying to make the granules of the traditional Chinese medicine composition for reducing blood fat and softening blood vessels. Compared with the original granulation method, the granulation method has strong operability and short production cycle, and is suitable for industrialized large-scale production. The prepared granules have better solvability, and the solution clarity is improved after dissolution. The granules are small in loss of the effective ingredients, and the yield is high.

The present invention solves several existing problems concerning displacement volumes in composite members, thereby obtaining a cost effective quality product with regards to material reduction, CO2 reduction, transport and precise assembly, as well as create enhanced flexibility in order to meet the markets increased demands for new design options. The present invention consists of methods and a system consisting of series of displacement volumes placed in an exact uniform geometrical grid determined and fixed by a spacing system integrated in a three-dimensional steel structure, which ensures integrity in the construction member.

The invention discloses a high-stability pay-off device for cable processing, which relates to the technical field of cable processing. The high-stability pay-off device for cable processing comprisesa base, wherein four sets of universal wheels are welded to the bottom part of the base, and are arranged at the bottom part of the base in a rectangular array mode; connecting blocks are hinged to the two side walls of the base; fixing shells are welded to the free ends of the connecting blocks; hydraulic air cylinders are welded to the top parts of the inner sides of the fixing shells; and thetelescopic ends of the hydraulic air cylinders longitudinally penetrate through the fixing shells. According to the high-stability pay-off device, the moving region and the placing region of the pay-off device are separated; supporting legs of a descending device are placed in a hydraulic lifting mode, and the expansion area of the supporting legs of the pay-off device is large, thereby avoiding the phenomenon that the pay-off device is prone to fall down due to the fact that the contact surface between a bottom plate and the ground is small to a certain extent, greatly improving the working efficiency, and satisfying the applicability of the pay-off device under different terrains by adopting the hydraulic lifting principle.

The invention relates to a permanent magnet vacuum unidirectional switch and a multifunctional composition switch provided with the same. The permanent magnet vacuum unidirectional switch comprises a shell, a vacuum circuit breaker and a permanent magnet driving mechanism, wherein, the vacuum circuit breaker comprises a stationary contact end and a dynamitic contact end; the permanent magnet driving mechanism drives the stationary contact end and the dynamitic contact end to be closed, and comprises an insulator; a counter-force spring which drives the dynamitic contact end to move is sheathed on the dynamitic contact end; the dynamitic contact end is in clearance fit with the insulator, and is not directly connected with the insulator, the permanent magnet driving mechanism drives the stationary contact end and the dynamitic contact end to be closed through the insulator, and when in closing, the dynamitic contact end and the insulator can automatically find a concentricity, thus avoiding the problems such as abrasion, unequal contact surfaces and the like. By utilizing the composition switch, the closing and openness of a plurality of permanent magnet vacuum unidirectional switches can be combined and controlled, thus the composition switch has a breaker function, a contactor function, a contactor reversing function, a breaker and contactor function and a breaker and contactor reversing function, thus satisfying the requirements of electricity utilization of different equipment; and the adaptability is more comprehensive.

The invention discloses a high-stability pay-off device for cable processing, which relates to the technical field of cable processing. The cable processing pay-off device with high stability includes a base, the bottom of the base is welded with universal wheels, the number of universal wheels is four sets and arranged in a rectangular array and installed on the bottom of the base, the two of the base The side walls are all hingedly equipped with connection blocks, the free ends of the connection blocks are welded with a fixed shell, the inner top of the fixed shell is welded with a hydraulic cylinder, and the telescopic end of the hydraulic cylinder runs through longitudinally. In the present invention, by separating the moving and placing areas of the device, the supporting legs of the device are placed and lowered by hydraulic lifting and the supporting legs of the device have a larger expansion area, thereby avoiding the top-heavy appearance of the device to a certain extent due to the small contact surface between the bottom plate and the ground The phenomenon of easy falling occurs, which greatly improves the work efficiency. At the same time, the principle of hydraulic lifting also meets the applicability of the device in different terrains.

The invention relates to a permanent magnetic vacuum unidirectional switch and a circuit breaker and contactor combined switch. The permanent magnetic vacuum unidirectional switch comprises a shell, a vacuum circuit breaker and a permanent magnetic driving mechanism, wherein the vacuum circuit breaker comprises a static contact and a moving contact; the permanent magnetic driving mechanism is used for driving the moving contact and the static contact to be closed and comprises an insulator; and a reaction spring for driving the moving contact to move is sleeved on the moving contact, the moving contact is movably matched to the insulator, and the permanent magnetic driving mechanism drives the moving contact and the static contact to be closed through the insulator. The moving contact and the insulator are movably matched and not directly connected, and therefore automatic centering can be realized in closing, and the problems of wearing, uneven contact surface and the like can be avoided. The combined switch is used for carrying out combined control on the closing and opening of a plurality of permanent magnetic vacuum unidirectional switches through a controller, so that the combined switch has the functions of a circuit breaker, the functions of a contactor and the functions of both the circuit breaker and the contactor. The power utilization needs on unused equipment are satisfied, and the adaptability is more comprehensive.

The invention relates to a shear connecting piece for a corrugated steel web-concrete combined box girder bridge structure, and belongs to the field of bridge construction. In the shear connecting piece structure, a third limb plate and a fourth limb plate are welded to form a vertical plate, a first limb plate and a second limb plate are respectively and vertically welded to the middle positions of the left end face and the right end face of the vertical plate respectively, the first limb plate and the second limb plate are aligned left and right, the shear connection pieces are in a cross shape; the middle positions of the outer sides of the first limb plate, the second limb plate, the third limb plate and the fourth limb plate are respectively provided with an opening hole used for penetrating the steel bars. According to the cross-shaped shear connection piece structure, the transverse shear resistance is improved through the arrangement of the first and second limb plates, the longitudinal shearing resistance requirement is guaranteed by the third limb plate and the fourth limb plate, so that the shearing resistance and the applicability of the connecting part of the steel-concrete combined box girder bridge are met; in addition, the cross-shaped shear connector further has the advantages of being simple in structure, saving in materials, easy to weld and construct, small in welding amount and capable of saving manufacturing cost.

The invention provides a system and method for repairing and remanufacturing a large-diameter hydraulic cylinder body. The system includes a low-temperature argon arc welding girth welding device and a cylinder body fixing device. The method designs a low-temperature argon arc welding inner surface girth welding Combined solution with nitriding of the inner surface layer, in which the process conditions are innovated in the inner surface ring welding of low-temperature argon arc welding: welding wire H12Cr24Ni13Si, welding wire diameter 1.2, 1.6 or 2.0mm, wire feeding speed 1400‑1600mm / min, premelting time 3s , Arc ignition current 60‑70A, width of each weld seam 4‑8mm, welding thickness 3‑8mm, cylinder rotation speed 300‑350mm / min, welding head feed rate 3‑7mm / r, argon delivery volume 8L / min. Through the method of the present invention, under the premise of greatly reducing the ellipticity deformation of the cylinder body generated during the repair process of the inner surface, the bonding strength of the repair layer is improved, and the repair layer has better stress corrosion resistance and wear resistance than the new product. At the same time, good economic applicability is taken into account, and the reutilization of the large-diameter hydraulic oil cylinder body is realized through the repair method.

This application proposes a preparation method for a high waxy crude oil demulsifier with a wax content of not less than 20%. A step in which the mixture of ethylene oxide and propylene oxide undergoes random copolymerization to obtain a crude oil demulsifier. In this application, the crude oil demulsifier obtained by the random copolymerization reaction between initiator and ethylene oxide and propylene oxide is similar to the structure of the wax in crude oil, and the crude oil demulsifier in this application is more effective by using the principle of similar compatibility. Helps demulsification and dehydration of highly condensed and highly waxy crude oil.

The invention discloses a spraying coating drying device for home decoration. The spraying coating drying device comprises a workbench, an adjusting mechanism, a drying mechanism and a crawler mechanism; a PLC is mounted on the front surface of the workbench; a base plate is welded to the rear surface of the workbench; the drying mechanism comprises a movable support, a through groove, five connecting plates, multi-cavity klystrons and a second position sensor; the outer surface of the through groove is formed in the inner side wall of the movable support; and the connecting plates are in threaded connection with the front surface of the movable support through screws. According to the spraying coating drying device, microwave drying is achieved through the multiple sets of multi-cavity klystrons in the drying mechanism, the temperature of materials is increased through microwave penetrating heating, and water in coating is vaporized and rapidly evaporated; and the thermal inertia of microwave drying is small, high-temperature roasting cannot be caused to the inner side of a wall, wall cracking is prevented, the overall drying temperature is low, efficiency is high, and the requirement for low-carbon emission is met while environmental protection and energy saving are achieved.

The invention relates to a method, system and device for back-to-back mail distribution, belonging to the technical field of e-mail transmission, and solves the problems of heavy workload and high error rate in manual distribution of e-mails in the prior art. Obtain the original email to be forwarded; parse the attachment of the original email to obtain at least one unit name corresponding to the attachment file of the original email; obtain the recipient email address of the corresponding attachment file based on at least one of the unit names; distribute The attachment file is sent to the recipient's email address corresponding to the attachment file. The self-distribution of emails is realized, the workload of users is reduced and the work efficiency is improved.

The invention discloses a water cooling photovoltatic-optothermal integrated power generation system generating capacity calculation method and system. The method comprises the following steps: determining a photovoltaic generating panel unit area under the condition that a water cooling condition is not taken and a first panel surface temperature of a photovoltaic generating panel under unit output power; calculating a photovoltaic generating panel unit area in a first period when the water cooling condition is taken and a second panel surface temperature of the photovoltaic generating panel under the unit output power; calculating a generating efficiency increase value of the photovoltaic generating panel in the first period when the water cooling condition is taken; calculating a prediction period corresponding to the first period and corresponding output power of the photovoltaic generating panel; calculating a generating capacity of the photovoltaic generating panel in the prediction period; calculating a high-temperature high-pressure steam amount of an optothermal generating system in the first period, and according to the high-temperature high-pressure steam amount, calculating a generating capacity of the optothermal generating system; and calculating a generating capacity of a water cooling photovoltatic-optothermal integrated power generation system. According to the invention, the generating capacity of the water cooling photovoltatic-optothermal integrated power generation system can be accurately predicted.

The invention discloses a method for detecting enantiomers of L-2-amino-5-guanidinovaleric acid, which belongs to the technical field of food and drug analysis, and mainly includes the preparation of system applicability solutions, enantiomers Preparation of reference solution, preparation of test solution, preparation of derivatization test solution, pre-column derivatization, chromatographic conditions and system suitability test and L-2-amino-5-guanidinovaleric acid enantiomer measurement steps. The inspection method of the present invention has high sensitivity, accuracy, precision, strong durability, can accurately reflect the content of L-2-amino-5-guanidinovaleric acid enantiomer, and is suitable for industrial use in L- The detection and quality control of the enantiomers of 2-amino-5-guanidinovaleric acid provide a basis for the establishment of reasonable quality standards, so as to better control and grasp product quality and ensure the safety of food and medicine.