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33results about How to "Accurate detection of concentration" patented technology

Electronic control system for mining anti-explosion electronic injection diesel locomotive

The invention provides an electronic control system for a mining anti-explosion electronic injection diesel locomotive. The electronic control system comprises a diesel locomotive safety protection module, an engine fuel oil injection control module, a power supply control module and a peripheral electrical control module. The power supply control module provides a power supply for the diesel locomotive safety protection module, the engine fuel oil injection control module and the peripheral electrical control module. The engine fuel oil injection control module comprises a diesel engine working condition collecting unit, an actuator and an anti-explosion electric control box. The diesel locomotive safety protection module comprises a safety data collecting unit, a power supply controller, a display unit and a wireless communication unit. An electronic injection diesel engine is used under a mine, the engine can obviously lower emissions and improve operating economical efficiency, and a positive promotion effect on energy conservation, emission reduction and health is achieved. An electronic control unit (ECU) is arranged inside the anti-explosion electric control box. The ECU reasonably controls the oil injection and power output of the engine according to actual working conditions and loads, and thus the economic performance and emission performance are improved.
Owner:成都天地直方发动机有限公司 +2

Fluorescent-traced green and environment-friendly polyether corrosion and scale inhibiting and dispersing agent and preparation method thereof

The invention provides a fluorescent-traced green and environment-friendly polyether corrosion and scale inhibiting and dispersing agent (APEYYG) and a preparation method of the fluorescent-traced green and environment-friendly polyether corrosion and scale inhibiting and dispersing agent. The fluorescent-traced green and environment-friendly polyether corrosion and scale inhibiting and dispersing agent is prepared by copolymerizing a polyether carboxylic reactive monomer and a fluorescent monomer with unsaturated double bonds through free radicals; the agent has a structural formula (see the accompanying drawing), wherein A is a repetition structure unit obtained by copolymerizing the fluorescent monomer with unsaturated double bonds, the polymerization degree x is 5 to 5000, the polymerization degree y is 5 to 5000 the polymerization degree p is 5 to 5000, and the repetitive unit n is 1 to 100.
Owner:SOUTHEAST UNIV

Environment-friendly water treatment agent capable of realizing fluorescence tracing, and preparation method thereof

InactiveCN107586361AExcellent calcium sulfate scale effectImprove performanceWater/sewage treatmentAlcoholFluorescence
The invention discloses an environment-friendly water treatment agent capable of realizing fluorescence tracing. The environment-friendly water treatment agent capable of realizing fluorescence tracing is obtained via water phase free radical copolymerization of an isopentenyl alcohol ester monmer and a monomer containing vinyl unsaturated double bonds with a fluorescent monomer capable of realizing fluorescence tracing. The general structural formula is disclosed in the invention, wherein A is used for representing structural repeat units obtained via copolymerization of the monomer containing vinyl unsaturated double bonds, B is used for representing structural repeat units obtained via polymerization of the fluorescent monomer containing unsaturated double bonds, polymerization degreesx and y range from 1 to 5000, the numbers of the repeat units m and n range from 1 to 100. The environment-friendly water treatment agent is excellent in compatibleness, can be used alone, and also can be combined with water treatment agents such as organic phosphates, and zinc corrosion inhibitors.
Owner:ANHUI UNIVERSITY

Device and method for measuring surfactant concentration distribution in CO2 emulsion percolation process

The invention relates to a device and a method for measuring surfactant concentration distribution in a CO2 emulsion percolation process. The device comprises a sand-filling core model, wherein the inlet end of the sand-filling core model is connected with emulsion generators and crude oil piston type intermediate containers which are connected in parallel; the inlet ends of the emulsion generators are connected with CO2 piston type intermediate containers and surfactant piston type intermediate containers which are connected in parallel; the outlet end of the sand-filling core model is connected with a gas source bottle and a liquid containing bottle which are connected in parallel through back-pressure valves; a plurality of equal-interval sampling openings are formed in the top surface of the sand-filling core model and are communicated with the core in the sand-filling core model; each sampling opening is connected with a sampler through a pipeline with a valve. When sampling is carried out at different parts of the model, water phases are separated from CO2 phases, CO2 phase samples are dissolved in water, and the high performance liquid chromatography (HPLC) is adopted to detect the concentration of the surfactant. The device and the method are simple in operation, and the detected accuracy is high.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Kit for quantitatively detecting trichomonas vaginalis by chemiluminiscence method and detecting method thereof

The invention provides a kit for quantitatively detecting trichomonas vaginalis by a chemiluminiscence method. In use, a trichomonas vaginalis antigen in a sample reacts with a reagent in the kit to generate a neutral avidin microsphere-capture antibody-antigen-detection antibody-acridinium ester compound; washing is carried out to remove substances which do not participate in the reaction; and when acridinium ester is in an alkaline H2O2 solution, molecules are attacked by hydrogen peroxide ions, unstable dioxane is generated, the dioxane is decomposed into CO2 and N-methyl acridone in an electron excited state, photons are emitted when acridinium ester returns to a ground state, and a light-emitting signal measuring instrument is used for measuring the light quantum yield for measurement. Meanwhile, a quantitative standard curve is fitted through a calibrator, and the concentration of trichomonas vaginalis is calculated by substituting the light signal measurement result of the sample into the quantitative standard curve. The kit provided by the invention is used for quantitative detection of trichomonas vaginalis, the sensitivity is high, the specificity is good, and the concentration of trichomonas vaginalis in the sample can be accurately detected.
Owner:江苏美克医学技术有限公司

System and method for preventing false alarm of NDIR alarm apparatus

The invention relates to a system and method for preventing a false alarm of an NDIR alarm apparatus. The system comprises an NDIR gas sensor, a temperature and humidity sensor, a controller and an alarm module, wherein the NDIR gas sensor is used for detecting concentration of a detected gas and sending the detected gas concentration to the controller; the temperature and humidity sensor is usedfor detecting temperature and humidity of an ambient environment and sending the detected temperature and humidity to the controller; the controller is used for receiving data sent by the NDIR gas sensor and the temperature and humidity sensor and controlling start and stop states of the NDIR gas sensor according to the data sent by the temperature and humidity sensor as well as issuing an alarm instruction to the alarm module; the alarm module is used for giving an alarm according to the alarm instruction issued by the controller. In the system, the temperature and humidity sensor is extra added, and a method that whether the temperature and humidity sensor is in fault is judged is added, so as to guarantee the effect that the NDIR gas sensor can accurately detect the concentration of thedetected gas, and a user is prompted by virtue of the alarm when the temperature and humidity greatly influence detection on the concentration of the detected gas or the temperature and humidity sensor is in fault.
Owner:CHENGDU QIANJIA TECH CO LTD

Cell counting instrument and application thereof

The invention provides a cell counting instrument and an application thereof and relates to the technical field of biological particle detection. The cell counting instrument comprises a positive pressure control unit, a negative pressure control unit, a counting module, a processing system, an effluent container and a sheath fluid container, wherein the counting module comprises a micro-fluidic chip. Due to the arrangement of a liquid inlet, a feeding hole, an effluent hole and a micro-channel on the micro-fluidic chip and the arrangement of an electric pulse signal detection area on the micro-channel, the whole liquid flow system is more compact and effective and the absolute counting of whole sample amount is realized, so that the result accuracy and consistency of cell counting are better than those of the present method and the problems of low integration level of the instrument, small detected sample amount and inaccurate result caused by cell layering and suspension in the priorart can be relieved. The counting module is designed in a detachable form, so that the flexibility of the cell counting instrument system is promoted and the cell counting instrument can meet different detection requirements of users. The invention also provides the application of the cell counting instrument.
Owner:JIANGSU JIM BIO SCI & TECH

A device and method for measuring surfactant concentration distribution of CO2 emulsion during percolation

The invention relates to a device and a method for measuring surfactant concentration distribution in a CO2 emulsion percolation process. The device comprises a sand-filling core model, wherein the inlet end of the sand-filling core model is connected with emulsion generators and crude oil piston type intermediate containers which are connected in parallel; the inlet ends of the emulsion generators are connected with CO2 piston type intermediate containers and surfactant piston type intermediate containers which are connected in parallel; the outlet end of the sand-filling core model is connected with a gas source bottle and a liquid containing bottle which are connected in parallel through back-pressure valves; a plurality of equal-interval sampling openings are formed in the top surface of the sand-filling core model and are communicated with the core in the sand-filling core model; each sampling opening is connected with a sampler through a pipeline with a valve. When sampling is carried out at different parts of the model, water phases are separated from CO2 phases, CO2 phase samples are dissolved in water, and the high performance liquid chromatography (HPLC) is adopted to detect the concentration of the surfactant. The device and the method are simple in operation, and the detected accuracy is high.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Fluorescent tracing green environmental-friendly polyglycol ether water treatment agent and preparation method thereof

The invention discloses a fluorescent tracing green environmental-friendly polyglycol ether water treatment agent (namely PEGEYYG) which is prepared by carrying out free radical copolymerization on a polyglycol ether carboxylic acid reaction monomer, a monomer containing vinyl unsaturated double-bond and a fluorescent monomer containing unsaturated double-bond. According to the structural general formula of the water treatment agent, A is a repeating structure unit after the polymerization of the monomer containing the vinyl unsaturated double-bond, B is a repeating structure unit after the polymerization of the fluorescent monomer containing the unsaturated double-bond, the polymerization degrees x, y and z are respectively 1-5000, the repeating unit m is 3-1000, and R refers to saturated alkyl of C1-C18.
Owner:SOUTHEAST UNIV

Fourier infrared automobile exhaust evaluation system

The invention relates to a Fourier infrared automobile exhaust evaluation system. The Fourier infrared automobile exhaust evaluation system is characterized by comprising a gas control part, a gas reaction part, an exhaust detection part and a data processing and outputting part, wherein the gas control part comprises an evaluation gas mixing cabinet, a thermostatic water bath, a first mixing tank and a second mixing tank, a gas inlet line of the evaluation gas mixing cabinet is connected with a simulated exhaust source, a gas outlet of the evaluation gas mixing cabinet is connected to the first mixing tank, an outlet of the first mixing tank is connected to the second mixing tank, the thermostatic water bath is connected to the second mixing tank through a steam line, and an outlet of the second mixing tank is connected with the gas reaction part; the gas reaction part comprises a tubular furnace, a reaction tube is arranged in the tubular furnace, and a catalyst sample is placed in the reaction tube; the exhaust detection part adopts an infrared analysis instrument, and a gas pool of the infrared analysis instrument is connected with a gas outlet end of the reaction tube. With the adoption of the Fourier infrared automobile exhaust evaluation system, the concentration of each gas component can be accurately detected in the combustion process of fuel.
Owner:WUXI WEIFU ENVIRONMENT PROTECTION CATALYST

Catalytic luminescence reactor, and detection device and detection method of butanone peroxide

The invention relates to the technical field of detection, in particular to a catalytic luminescence reactor and a butanone peroxide detection device and method. The catalytic luminescence reactor comprises a cavity structure and a base material arranged in the cavity structure, wherein a nano yttrium oxide catalytic layer is attached to the surface of the base material; and the cavity structure is provided with a gas inlet and a gas outlet. The butanone peroxide detection device comprises a sampling unit, a catalytic luminescence reactor and a detection unit, an outlet of the sampling unit isconnected to the gas inlet; the detection unit comprises a photomultiplier, a light-emitting instrument and a display, the photomultiplier is electrically connected with the light-emitting instrument, and the light-emitting instrument is electrically connected with the display; and the photomultiplier is used for detecting a light-emitting signal in the catalytic light-emitting reactor. The detection device provided by the invention can achieve real-time online detection of the concentration of butanone peroxide, and provides guarantee for long-term accurate detection of the concentration ofisobutanone peroxide.
Owner:GUANGDONG PHARMA UNIV

Water-soluble fluorescent monomer 8-(allyloxy)-1,3,6-pyrene trisulfonic acid and preparation method thereof

The invention discloses water-soluble fluorescent monomer 8-(allyloxy)-1,3,6-pyrene trisulfonic acid and a preparation method thereof. The 8-(allyloxy)-1,3,6-pyrene trisulfonic acid is prepared by heating and reacting 8-hydroxyl-1,3,6-pyrene trisulfonic acid serving as a raw material with liquid 3-chloropropene in a system of a sodium hydroxide aqueous solution. The preparation method is simple; various reaction conditions are easy to realize; compared with the prior art, the preparation method takes water as a reaction solvent, so that the product production cost is reduced; environmental pollution cannot be caused.
Owner:SHANDONG UNIV +1

Monitoring system and monitoring method for real-time exhaust of diesel mine locomotive

InactiveCN105179055AReflect emission indicatorsReal-time reminder of excessive emission signalsInternal combustion piston enginesExhaust apparatusDiesel locomotiveMonitoring system
The invention relates to a monitoring system and monitoring method for real-time exhaust of a diesel mine locomotive. The monitoring system comprises a tail gas collecting module, a diesel mine locomotive working condition collecting module and a data processing module. The tail gas collecting module is used for collecting the content of carbon monoxide and oxynitride in tail gas of the diesel mine locomotive in real-time through an explosion proof type gas sensor. The diesel mine locomotive working condition collecting module is used for collecting the rotation speed of an engine of a mining diesel engine and the position of an accelerator of the diesel mine locomotive. The data processing module is used for calculating exhaust data under different working conditions according to the rotation speed of the engine, the position of the accelerator and the content of the carbon monoxide and the oxynitride in the tail gas. According to the rotation speed of the engine, the position of the accelerator and the content of the carbon monoxide and the oxynitride in the tail gas, the exhaust data under different working conditions are worked out, in this way, the real-time exhaust of the diesel mine locomotive can be in one-to-one correspondence with the real-time working conditions, and exhaust indicators of the locomotive in practical application can be reflected accurately and objectively.
Owner:成都天地直方发动机有限公司 +2

Method for detecting miRNA-21 based on electrochemical alternating current impedance

The invention discloses a method for detecting miRNA-21 based on electrochemical alternating current impedance. The method comprises the following steps: firstly, burnishing a gold electrode, polishing and drying; secondly, soaking the surface of the gold electrode in miRNA-21 aptamer solution, and then sequentially performing electron beam irradiation, glucose aqueous solution soaking as well asflushing and drying; placing the gold electrode in a magnetic field to be soaked, flushing and drying; dropwise adding mercaptoethanol solution and performing reaction, flushing and drying, so that anactivated gold electrode is obtained; thirdly, preparing multiple activated gold electrodes, dropwise adding miRNA-21 solution with different concentrations, performing reaction, and then flushing and drying, so that multiple detection gold electrodes are obtained; fourthly, detecting an impedance value corresponding to the miRNA-21 solution with each concentration; fifthly, calculating to obtaina linear relationship between the concentrations and difference values of the impedance values; and sixthly, detecting an impedance value of to-be-detected sample solution, and calculating and obtaining the concentration of the miRNA-21 in the to-be-detected sample solution by adopting the linear relationship. The method disclosed by the invention has the beneficial effect of high detection sensitivity.
Owner:宁波远志立方能源科技有限公司

Liquid concentration detection device and seawater concentration detection set

The invention relates to the field of seawater index detection devices, and provides a liquid concentration detection device. The liquid concentration detection device comprises a concentration detection mechanism and a cleaning mechanism, the concentration detection mechanism comprises a measuring cylinder and a laser displacement sensor, a gravitometer is arranged in the measuring cylinder, andthe measuring cylinder is provided with a gravitometer locating piece for locating the gravitometer; the laser displacement sensor is arranged over the measuring cylinder, a laser emitting direction of the laser displacement sensor is same as a length direction of the gravitometer, and the laser emitting direction faces towards a top end of the gravitometer; the cleaning mechanism comprises a drain pipe communicated with the bottom of the measuring cylinder and a flush pipe for flushing towards the top end of the measuring cylinder, a drain valve is arranged on the drain pipe, a flushing end of the flush pipe faces towards an opening part of the top end of the measuring cylinder, and the flush pipe is provided with a water pump. The liquid concentration detected by the liquid concentrationdetection device is highly accurate. The invention also provides a seawater concentration detection set, the seawater concentration detection set comprises the liquid concentration detection device,and thus, salt pond concentration detected by the seawater concentration detection set is also highly accurate.
Owner:锦州艾德自动控制系统有限公司

Portable muzzle smoke testing device

The invention discloses a portable muzzle smoke testing device. The device comprises a smoke collecting box [1] for collecting muzzle smoke and a bullet collector [2] for collecting bullets, wherein the bullet collector [2] comprises a bullet collecting box [21] and a bullet collecting box cover plate [22] hinged with the bullet collecting box [21], and the bullet collecting box [21] is filled with a damping material [23]; the smoke collecting box [1] comprises a box body [11], a sealing assembly [12], an exhaust device [13], a pressure relief device [14], a high compactness plate [15], a fixing plate [16], an upper leans seat assembly [17] and a lower lens seat assembly [18]; the sealing assembly [12] is fixedly connected with the front end of the box body [11] in a closed manner, the high compactness plate [15] is pressed against the back end of the box body [11] through the fixing plate [16], and the exhaust device [13] and the pressure relief device [14] are fixed on the side surface of the box body [11] and communicated with the inside of the box body. The smoke testing device can perform quantitative analysis on muzzle smoke, has the low requirement for test light rays and can obtain accurate results.
Owner:NANJING UNIV OF SCI & TECH

Gas sensor for detecting exhaled gas methane

PendingCN112557642AAvoid bias in test resultsRealize desorption regenerationChemical analysis using catalysisChemical analysis using combustionPtru catalystPhysical chemistry
The invention discloses a gas sensor for detecting exhaled gas methane. The gas sensor is composed of a gas sensitive element (1), a filtering structure (2), a catalytic combustion structure (3) and aconstant temperature structure (4). The gas sensitive element (1) is a gas sensitive semiconductor type element; the filtering structure (2), the gas sensitive element (1) and the catalytic combustion structure (3) are sequentially connected in a penetrating manner, and a gas outlet of the catalytic combustion structure (3) is connected with a gas inlet or a gas outlet of the filtering structure(2) to form a circulating gas path; the filtering structure (2) can filter responsive substances on the gas sensitive element (1), but does not filter methane gas; the filtering structure is composedof a carrier material, a catalyst or an adsorbent; the catalytic combustion structure (3) can fully combust methane gas; the constant temperature structure (4) is used for heating or keeping the temperature of the gas sensitive element (1) and the filtering structure (2) constant, so that the filtering efficiency of the filtering structure (2) and the signal stability of the gas sensitive element(1) are ensured.
Owner:SUNVOU MEDICAL ELECTRONICS

Fluorescent labeled phosphorus-free and environment-friendly polyether multifunctional water treatment agent and preparation method thereof

The invention provides a fluorescent labeled phosphorus-free and environment-friendly polyether multifunctional water treatment agent (PEGDEYG). The fluorescent labeled phosphorus-free and environment-friendly polyether multifunctional water treatment agent is prepared by subjecting polyethylene glycol alkadiene ether, monomer with vinyl unsaturated double bond, and fluorescent monomer with unsaturated double bondto free-radical copolymerization; the agent has a structural formula shown in the description, wherein A is a repetition structure unit obtained by copolymerizing the monomer with vinyl unsaturated double bond, G is -CH2-O- or -O-; and the repetition structure unit has the polymerization degree x of 1 to 5000, and polymerization degree y of 1 to 5000, polymerization degree z of 1 to 5000, polymerization degree p of 1 to 5000, polymerization degree q of 1 to 5000, polymerization degree r of 1 to 5000, and the repetitive unit m is 3 to 1000.
Owner:SOUTHEAST UNIV

Quantitative generation-reaction device and synchronous detection method for ammonia gas

The invention discloses a quantitative generation-reaction device and a synchronous detection method for ammonia gas. The device comprises a first tank body, wherein a drying agent spacing layer is horizontally arranged at the inner lower part of the first tank body, an ammonia gas generation chamber is arranged below the drying agent spacing layer, and an ammonia gas reaction chamber is arrangedabove the drying agent spacing layer; a rubber cover is arranged at the top of the first tank body, two funnels are arranged on the rubber cover, and the ends of the two funnels are arranged below thedrying agent spacing layer; and a first valve is arranged at the bottom end of the side wall of the first tank body, a second valve is arranged at the top end of the side wall of the first tank body,and the second valve is located below the rubber cover. The device is combined with the self-developed closed sulfuric acid absorption synchronous detection method, so quantitative generation-reaction and synchronous detection of any ammonia gas concentration can be realized. The device is simple and easy to operate, and has important significance in production practice and scientific research experiments for researching generation, influence, synchronous detection and the like of ammonia gas with an accurate concentration.
Owner:NANJING UNIV OF INFORMATION SCI & TECH

Automatic detection and dosing apparatus of metal surface treatment agent

The invention discloses an automatic detection and dosing apparatus of a metal surface treatment agent. The automatic detection and dosing apparatus comprises a control cabinet main machine and a dosing system, wherein the dosing system comprises a chemical solution treatment pond, a chemical solution storage apparatus, a chemical solution detection apparatus, a measuring pump and a circulating pump, the chemical solution treatment pond is connected with the chemical solution storage apparatus by virtue of a chemical inlet pipeline, the measuring pump is arranged on the chemical feeding pipeline, the circulating pump is connected with a solution inlet pipe and a solution outlet pipe, the solution inlet pipe is connected to the bottom of the chemical solution treatment pond, the solution outlet pipe is connected to the top of the chemical solution treatment pond, the middle part of the solution outlet pipe is also connected with a detection pipeline, the detection pipeline is provided with a U-shaped circulation pond, the chemical solution detection apparatus is located on the bottom of the U-shaped circulation pond, and the control cabinet main machine is separately electrically connected with the measuring pump and the chemical solution detection apparatus. By adopting the technical scheme, the problems of the existing metal surface treatment agent adding way that the detection concentration and chemical solution addition amount are inaccurate and the metal surface treatment effect is influenced can be solved.
Owner:广州钛尔锐科技有限公司

Phosphorus-free environment-friendly corrosion and scale inhibitor as well as preparation method and application thereof

The invention provides a non-phosphorus environment-friendly corrosion and scale inhibitor as well as a preparation method and application thereof, and the non-phosphorus environment-friendly corrosion and scale inhibitor is prepared from the following raw materials in parts by weight: 4-12 parts of inorganic salt, 2-15 parts of polyepoxysuccinic acid, 0.5-1 part of benzotriazole, 5-15 parts of polyaspartic acid, 5-10 parts of a pH regulator, 2-4 parts of a surfactant, 10-30 parts of a tracing copolymer and the balance of water, totaling 100 parts. According to the present invention, through the specific component ratio and the preparation method, the slow-release scale inhibition effect is excellent, the protection film can be formed on the metal surface so as to effectively resist pitting corrosion, the specific tracing type polymer is added, such that the stability in the system is high, the influence of other factors is avoided, the use condition of the agent can be accurately monitored, and the application prospect is wide. The slow-release scale inhibitor has an excellent effect when being applied to treatment of industrial circulating cooling water.
Owner:SHANGHAI WEILAI ENTERPRISE

Determination of co in one-dimensional seepage process 2 Soluble surfactants in co 2 Apparatus and method for concentration distribution in water system

The invention relates to a device for measuring concentration distribution of a CO2 soluble surfactant in a CO2 / water system in the one-dimension seepage process. The device comprises a one-dimension core model, wherein the inlet end of the one-dimension core model is connected with an emulsion generator and a crude oil injection device which are connected in parallel; the inlet end of the emulsion generator is connected with a CO2 gas injection device and a surfactant injection device which are connected in parallel; the outlet end of the one-dimension core model is connected with a gas source bottle and a liquid containing bottle which are connected in parallel; multiple sampling holes at equal intervals are formed in the top of the one-dimension core model; and each sampling hole is connected with a sampler by virtue of a pipeline with a valve. When sampling is performed at different parts of the model, the water phase and CO2 phase are separated in the sampler, the CO2 phase sample is dissolved in water, and the concentration of the surfactant is detected by using high performance liquid chromatography, so that the solubility of the surfactant in the supercritical CO2 phase and water phase is determined. The device disclosed by the invention is simple in structure and high in accuracy rate.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Fluorescent tracing non-phosphate polyether multifunctional water treatment agent and preparation method of water treatment agent

The invention relates to a fluorescent tracing non-phosphate polyether multifunctional water treatment agent (APEGYG), which is prepared from polyether monomers, monomers containing vinyl unsaturated double bonds and fluorescent monomers containing unsaturated double bonds through free radical copolymerization. The APEGYG has a structure formula shown as the accompanying drawing, wherein A is a repeated structure unit after polymerization of the monomers containing vinyl unsaturated double bonds, B is a repeated structure unit after polymerization of the fluorescent monomers containing unsaturated double bonds, G is -CH2-O- or -O-, the polymerization degree x is 5 to 5000, the polymerization degree y is 5 to 500, the polymerization degree z is 5 to 5000, and the repeated unit m is 5 to 100.
Owner:SOUTHEAST UNIV
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