185results about How to "Realize synchronous detection" patented technology

The invention discloses a narrow gap welding monitoring and welding line deviation detecting method based on infrared vision sensing and belongs to the technical field of welding. An infrared vision sensing system comprises an infrared complementary metal oxide semiconductor (CMOS) camera, a filtering system, an image collecting card, a computer, a display and the like. Narrow gap welding arc light and molten pool radiation light are used as a light source, an infrared narrow belt filtering system is used for filtering interference signals and adjusting light intensity, and the computer collects and displays a welding image obtained through the infrared CMOS camera. An image capturing window is used for capturing an image away from an arc side, the image is processed, welding line deviation information is obtained by extracting a groove single-side edge, and a real-time property of welding line deviation detecting is improved while arc noise is effectively avoided. The system is simple in formation, clear in monitored image, high in welding line deviation detecting precision, strong in anti-interference capacity and good in engineering practicality and can achieve the purposes of real-time monitoring of narrow gap welding and synchronous detecting of welding line deviation.

The invention discloses a method of detecting the residue of small-molecule substances harmful to the human body and a special kit. The special kit comprises a non-transparent micro-porous plate and a light-emitting compound, wherein each hole of the non-transparent micro-porous plate is filled with a coat antigen which is simultaneously coated with three kinds of small-molecule substances. The invention makes full use of the multi-color marking function of QDs, establishes a novel kit for simple and rapid detection of the residue and a method thereof, and realizes the multi-color marking through indirect marking of polyclonal antibodies and monoclonal antibodies in the veterinary drug by coupling the QDs with different particle sizes and targets with functional groups (such as an amino) with specific surfaces. The method comprises: obtaining quantum dots with different fluorescent characteristics through separation and purification, namely, multi-color antibody markers, using the multi-color antibody markers as fluorescent probes, and establishing a reaction system for synchronous analysis of various antigen components of different kinds, thereby realizing the synchronous detection of multiple kinds of residues of the veterinary drug in animal food. Moreover, the method has the advantages of simple operation, high fluorescence intensity and long stabilization time.

The invention discloses a frame synchronization method applicable to a burst communication system. A multi-path segmented coherence relevance mode with different segmentation lengths is adopted in an initial signal channel access stage, the maximum relevance value of each branch path is adopted for carrying out double-threshold value (relative threshold value and absolute value) judgment, the synchronous confirmation is carried out from the position with the relevance value exceeding the threshold value, and the influence of severe environment factors in the initial signal channel access stage is overcome through the setting of proper double threshold values and conforming windows; and a full coherence relevance mode is adopted in a stable communication stage, the prior double threshold values and conforming window width are set according to the signal channel information recorded in the conforming windows in the initial signal channel access stage, and the method and the device have higher adaptability through different frame synchronization methods adopted in different communication stages.

The present invention discloses a device of detecting axial and radial runout of shaft parts. The device comprises an installing panel used for installing and fixing all devices, and the installing panel is equipped with a tip automatic hole alignment device used for carrying out the automatic hole alignment on the shaft parts, a runout measurement device used for measuring the shaft neck radial runout and the shaft shoulder axial runout of the shaft parts, a man-machine interaction device used for acquiring, displaying, analyzing, determining and storing the runout detection data, an electrical control device used for installing and fixing all electrical parts in a detection mechanism and a friction transmission device used for transmitting the rotation of a motor shaft to the shaft parts. The beneficial effects of the present invention are that: 1, the runout error amounts at different positions are transmitted simultaneously by adopting the combination of a spring leaf structure and an alloy rod, the defect that a detection instrument needs to be adjusted repeatedly for a plurality of measurement points of a conventional deflection instrument is avoided, and the synchronous detection of the error amounts of three measurement points is realized.

The invention discloses a pornographic image recognizing method based on sensitive parts detection, comprising the following steps of: step 1, a stage of training a model: constructing five sets of image libraries, training a skin color predicating model, a mammary areola detector, a pudendum detector, a mammary areola identifier and a pudendum identifier; step 2, a stage of pre-processing and extracting a region to be detected: using the skin color predicating module to pre-process the skin color of the image to be detected, and extracting the region to be extracted; step 3, a stage of detecting the sensitive parts: using a slide window to judge whether some sub-region in the region to be detected belongs to the suspected sensitive parts, and identifying and judging the suspected sensitive parts. By the method of the invention, the characteristics such as colors, textures, edges, expressions and the like are blended to a learning-based image identifying frame so as to realize quick and synchronous detection for the sensitive parts, and the pornographic image recognizing accuracy rate and recognizing efficiency are improved.

The invention provides a trace helium, neon and hydrogen gas analysis method and device, belonging to the field of separation and detection of helium, neon and hydrogen in natural gas. The method comprises the following steps: firstly carrying out a first separation on a mixed gas sample, separating helium, neon and hydrogen gases from other heavy gas components, then carrying out a second separation on the mixed gas sample without the other heavy gas components, separating helium, neon and hydrogen gases out respectively, and finally inputting the helium, neon and hydrogen one by one in a high-sensitivity gas chromatograph thermal conductivity detector for detection, and venting the separated heavy gas components by back flushing while conducting the detection. The device of the invention adopts a double-column series structure, and simultaneously optimizes chromatographic column packing materials and chromatographic analysis conditions. According to the invention, the effective separation and detection of trace helium, neon and hydrogen are realized, the analysis time is shortened, the analytical chromatographic columns are protected, and the service life of the chromatographic column is prolonged. The method can be continuously applied for trace helium, neon and hydrogen analysis of mass samples.

The invention discloses a multi-channel surface plasma wave sensing-monitoring system, which comprises a SPR biological sensing-monitoring device, an incident light channel, an exit light channel and an intelligent analysis processing platform, wherein the SPR biological sensing-monitoring device comprises a SPR biological sensor and an adjustable detecting light source, the incident light channel comprises a cruising adjustable polarized light source which comprises a polarized light source and a control system, and the exit light channel comprises a convergent lens and a photodetector. The multi-channel surface plasma wave sensing-monitoring system can accurately analyze the interaction (the function of multiple factors) of various matters in specimens, avoids system deviation which is brought by single measurement, greatly reduces monitoring time, and improves monitoring efficiency. The invention has the advantages of compact structure, convenient carrying, convenient employment and high sensitiveness, which can be applied in a plurality of fields and various environments, and has wide application prospect.

The invention discloses a bi-directional shearing speckle interference system based on spatial carrier and a measurement method. The system is characterized in that different-wavelength emergent light of a first light source and a second light source irradiates a measuring surface at the same time after beam expanding; diffuse reflection light of the measuring surface passes through an imaging lens, a diaphragm, a 4f system and a beam splitter prism and is divided into two beams of light; the two beams of light pass through filters and become two light beams with single wavelength, and the two light beams respectively pass through two Michelson shearing apparatuses so as to realize introduction of shearing displacement at different directions; and light with two different shearing directions passes through the beam splitter prism and irradiates on a CCD target surface. The measurement method can carry out bi-directional synchronous detection on defect of a measured object and is a nondestructive, whole-field and high-efficiency measurement method.

The invention discloses a steel pipe annular welding device with a welding seam detection function, and belongs to the technical field of steel pipe welding. The steel pipe annular welding device withthe welding seam detection function comprises an operation table and a pair of limiting mechanisms installed at the front end and the rear end of the upper side of the operation table, a pair of arc-shaped cavities corresponding to the limiting mechanisms in position are formed in the operation table, the top ends of the pair of arc-shaped cavities penetrate through the upper end of the operationtable, and driving gears are rotationally installed in the pair of arc-shaped cavities correspondingly. By arranging the pair of limiting mechanisms capable of automatically rotating, a steel pipe isarranged in the limiting mechanisms in a sleeved mode, and the steel pipe is fixed through the clamping mechanisms in the limiting mechanisms; the limited steel pipe can automatically rotate, and seam welding after spot welding can be easily completed without manual operation; and after welding is completed, quality detection is conducted on the inner side and the outer side of the welding position of the steel pipe through an inner and outer welding seam detection mechanism, inner and outer synchronous detection of the welding seam position is effectively achieved, the operation is easy andconvenient, and the flexibility is high.

A full polarization spectrum imaging system for synchronously detecting ground feature light and skylight is formed by an optical system, an electronic driver, a dual-channel image collecting card and a computer; the optical system is divided into two channels: the first channel is formed by a fisheye optical lens, a light filtering wheel 1, two liquid crystal phase variable retarders LCVR1 and LCVR2, a polarization piece 1, a microspur optical lens 1 and a CCD (charge-coupled device) 1 and is used for finishing the imaging of skylight; the second channel is formed by a telescopic optical lens, a light filtering wheel 2, two liquid crystal phase variable retarders LCVR3 and LCVR4, a polarization piece 2, a microspur optical lens 2 and a CCD 2 and is used for finishing the imaging of ground feature light. The electronic driver is used for controlling the voltage values applied to the four LCVRs, changing the phase retardance of the value values, and realizing the dual-channel full polarization imaging. Image signals of the tested skylight and ground feature light are collected by the computer and are subjected to image processing. The system realizes the synchronous detection on polarization information of the skylight and the ground feature light and can be used for the research on remote sensing atmosphere effect correction of ground feature polarization.

The invention discloses an albumen microsphere conjugate for detecting acrosin activity and a preparation method and application of the albumen microsphere conjugate. The albumen microsphere conjugate is characterized in that monodisperse micron microspheres obtained by combining fluorescein and the acrosome reaction substrate, namely zona pellucida protein are prepared, the acrosin activity is detected by aid of change in fluorescence intensity, and the specific steps include preparation of monodisperse microspheres modified through surface carboxylation or amination, surface modificaction, fluorescence labeling of protein polypeptide, conjugation of fluorescent protein polypeptide and functional microspheres and detection of the acrosin activity. The albumen microsphere conjugate has the advantages that protease digestion on the microspheres is realized through the polymer microsphere technology and the protein labeling and conjugating technology, and enzymatic activity is evaluated; the albumen microsphere conjugate is mainly applied to flow detection of the acrosin activity, synchronous detection of an acrosome reaction and the acrosin activity can be realized, and acrosome functions can be evaluated more truthfully and accurately.

The invention discloses an ultrasonic echo statistical parameter imaging system and method for thermal coagulation monitoring. The imaging system comprises main control equipment, a power amplifier, a noninvasive power transducer, an ultrasonic detection and imaging transducer, full-digital ultrasonic equipment, data collection equipment, a sample, image collection equipment, an indicator lamp, a minimally invasive power transducer, a light-transmitting water tank and three-dimensional mobile equipment. According to the invention, the ultrasonic echo statistical parameter imaging method, which overcomes micro-bubble coverage and upper strong echo region sheltering, is adopted to monitor a process of forming thermal coagulation, so that early detection of the initiation of the thermal coagulation is achieved, lower part display of the thermal coagulation is enhanced and a thermal coagulation micro-bubble ratio in a thermal ablation process is improved so as to enhance a contrast ratio of the thermal coagulation monitoring.

The invention discloses a high temperature superconducting magnet performance detection system comprising a low temperature constant temperature system, a sensor component, an energy absorption component, an excitation power supply device, a data acquisition system and a monitoring system. The low temperature constant temperature system comprises a vacuum container, refrigerating machine and a vacuum pump unit. The sensor component comprises a temperature sensor, a voltage sensor, a strain sensor and a Hall probe which are distributed on a magnet coil. The excitation power supply device comprises a DC power supply and a programmable controller. The data acquisition system performs A / D conversion on all types of sensor signals. The monitoring system performs analysis and quench monitoring on the performance parameters of the high temperature superconducting magnet. The vacuum container is provided with a sealed air plug which is connected with the data acquisition system and the monitoring system. The invention discloses a detection method of the high temperature superconducting magnet performance detection system. Automatic detection of the high temperature superconducting magnet performance can be realized through programmatic synchronization and centralized management of data acquisition of the multi-physical parameters of the magnet and monitoring of the excitation power supply so that the efficiency and the accuracy of magnet performance detection can be enhanced.

The invention discloses a magnetic immune chromatography method capable of synchronously detecting Tm and Pa allergens. The method is characterized by comprising the following steps of: sequentially sticking a sample pad, a combination pad combining anti-Tm and anti-Pa immune magnetic beads, a chromatography film and a water absorption pad to a bottom plate crossly at intervals of about 2 millimeters, and then covering a transparent plastic sealing film on the upper layer to construct a magnetic immune chromatography test strip capable of synchronously detecting the Tm and Pa allergens. A Pa antigen detection line T1, a Tm antigen detection line T2 and a goat anti-mouse IgG quality control line C are pre-coated on the chromatography film, the immune magnetic beads can be captured by chromatography, and quick qualitative detection of the Tm and Pa allergens is realized according to 1 to 3 macroscopic color development strips formed after the chromatography of a sample; or quantitative detection of single allergen or synchronous quantitative detection of two allergens is realized by detecting the constructed magnetic immune test strips through a magnetic analyzer according to the magnetic signal detection values of the detection lines and the control line formed after the chromatography of the sample.

The invention provides a Bluetooth signal frame synchronous detection method for a wireless general measuring instrument. The method comprises the following steps: step S1, inputting a signal; step S2, coarsely synchronizing frame power judgment; step S3, calculating a phase angle; step 4, differentiating; step S5, filtering; step S6, eliminating an initial frequency offset, and obtaining a sequence f (n); step S7, an initial position is n, and the length of each symbol is Ts, and performing a GFSK (Gaussian Frequency Shift Keying) demodulation judgment on every 5 GFSK symbols; step S8, if ''10101'' or ''01010'' is found, then entering the next step; and if ''10101'' or ''01010'' is not found, then n=n+1 and returning to step S7; and step S9, taking points from (n+(1 / 3) *Ts) to (n+(2 / 3) *Ts) as initial points, and orderly performing a sliding judgment on 5 symbols. The Bluetooth signal frame synchronous detection method for the wireless general measuring instrument provided by the invention has the following beneficial effects: Bluetooth signal frame synchronous detection of the wireless general measuring instrument can be realized, an MAC address is not depended, and certain synchronization accuracy can be guaranteed.

The invention discloses a magnetic separation and multicolor quantum dot marking-based method and a kit for quickly detecting anti-human chlamydia pneumoniae IgM and IgG antibodies simultaneously. The kit is composed of nanometer magnetic anti-human chlamydia pneumoniae antibody capturing beads, a multicolor quantum dot marked anti-human IgM antibody nanometer probe, a multicolor quantum dot marked anti-human IgG antibody nanometer probe, quality control products and a PBST buffer solution, wherein the quality control products comprise positive quality control products and negative quality control products; the positive quality control products are positive anti-human chlamydia pneumoniae IgM and IgG antibodies of a human chlamydia pneumoniae infected person and are positive serums, and the negative quality control products are negative anti-human chlamydia pneumoniae IgM and IgG and are negative human serums. The method has the advantages of simplicity, quickness and high sensitivity, and can detect the anti-human chlamydia pneumoniae IgM and IgG antibodies simultaneously.

The invention discloses a synchronous detection battery sensor which comprises a resistor array, a multiplexer for sampling channels, a first PGA, a second PGA, a first ADC, a second ADC, a digital processor, a state machine, a clock module, a communication module and a memorizer. Through the multi-channel high-precision ADC design technology, the digital processor receives synchronous signals sent by an energy storage battery management system through the communication module so that synchronization of the digital processor and the energy storage battery management system can be achieved; running of all the modules is controlled by the state machine, and therefore synchronous detection of voltage and current is achieved; one channel is formed by the first PGA and the first ADC, another channel is formed by the second PGA and the second ADC, the dual-channel technology is adopted, and therefore flexible configuration can be achieved.

The embodiment of the invention discloses water quality detection equipment and a water quality detection system thereof. The testing equipment comprises a water quality detection module, a communication module and a control module, wherein the water quality detection module comprises spectrum water quality detection units, a pH detection unit, a temperature detection unit and a detection container; the detection container comprises a water sample detection cell as well as an input pipeline and an output pipeline that are connected with the two ends of the water sample detection cell; the spectrum water quality detection units are arranged on the two sides of the detection cell; the pH detection unit and the temperature detection unit are arranged on the input pipeline or the output pipeline; the spectrum water quality detection units, the pH detection unit and the temperature detection unit are connected with the control module and are configured to transmit water quality parameters, pH and temperature to the control module; the control module is connected with the communication module. In the equipment, various different water quality detection function units are integrated, so that various water quality parameters can be synchronously detected online.

The invention discloses an integral MFL (Magnetic Flux Leakage) and eddy current array sensor for detecting a copper-coated / aluminum-coated steel shaft type structure, and belongs to the field of ENDT (Electromagnetic Non-destructive Testing). The integral MFL and eddy current array sensor comprises annular permanent magnets, array type eddy current sensor units, wire clamping discs, a cylindrical shell type shielding layer, an MFL induction coil, a supporting frame and a protection shell, wherein the two annular permanent magnets are arranged on two ends of the supporting frame in a sleeving way and are used for providing an axial magnetostatic field to magnetize a detected component; the MFL induction coil is used for detecting a leakage magnetic field which is formed on the surface of the detected component; the shielding layer is used for detecting sensitive areas on the array type eddy current sensor units to form a near-zero magnetic field; the eddy current sensor units are annularly and uniformly arranged along the detected component and are used for detecting the variation of an eddy current field in a surface defect area; the copper-coated / aluminum-coated steel detected components of the array type eddy current sensor units and the MFL induction coil are connected to a sensor electrical interface after being led out through the wire clamping discs which are arranged at two sides of the supporting frame. According to the integral MFL and eddy current array sensor for detecting the copper-coated / aluminum-coated steel shaft type structure, disclosed by the invention, dual functions of MFL testing and eddy current testing are obtained, and total-structure defect NDT (Non-destructive Testing) can be carried out on an aluminum-coated steel stranded wire, a copper-coated steel ground rod and the like.

The invention discloses a preparation method of a tumor detection nanoprobe. The method comprises the following steps of: (1) constructing expression plasmids for expressing a ferritin heavy chain, expressing with colon bacillus, purifying ferritins and verifying and representing a cage structure with an electron microscope; (2) fusing a green fluorescent protein at an amino terminal of each ferritin and performing expression and purification to obtain a ferritin cage structure of which the surface expresses the fluorescent protein; (3) fusing a segment of tumor targeting small peptides RGD (Arginine-Glycine-Aspartate) at the amino terminal of a ferritin H chain of which the amino terminal is fused with the green fluorescent protein to prepare a ferritin cage structure of which the surface expresses the fluorescent protein and the tumor targeting peptides; and (4) synthesizing Fe3O5 nanoparticles in the cavity of the ferritin cage structure of which the surface expresses the fluorescent protein and the tumor targeting peptides simultaneously to obtain a multifunctional ferritin probe with tumor targeting, fluorescence and magnetism. In the nanoprobe, a tumor targeting function, a fluorescent imaging function and a magnetic resonance imaging function are fused integrally, so that synchronous detection in multiple modes can be realized.

The invention provides a multi-signal synchronous feedback device for oil detection. The device comprises a detection device and an exciting-detection unit; the detection device comprises a micro-fluidic chip and used for differentiating and detecting ferromagnetic metal particles, non-ferromagnetic metal particles, water drops and bubbles in the oil; a sedimentation tank is firstly arranged in the chip, the metal particles and the non-metallic particles can be effectively separated, thereby realizing synchronous detection of four particle pollutants; a measurement mode switching unit is saved, the chip can be directly connected with the exciting-detection unit, the response time of the signal collection is shortened, and the detection effect is more precise and efficient. The chip integrates two sensing units into a chip, the multi-parameter measurement on the induction, the resistance and capacitance in the oil is realized, thereby accomplishing the differentiating and detection of multiple particle pollutants in the lubricating oil and the hydraulic oil; an effective method is provided for performing oil online monitoring on the machine equipment, and the fault diagnosis can beperformed on the machine equipment.

The invention discloses a method and a kit for performing quick co-detection on anti-human Hi (Haemophilus influenzae) IgM (Immunoglobulin M) and IgG (Immunoglobulin G) antibodies based on magnetic separation and multi-color quantum dot labeling. The kit consists of anti-human Hi antibody capturing nano magnetic beads with an anti-human Hi IgM and IgG antibody gathering function, anti-human IgM and IgG antibody nano probes labeled by multi-color quantum dots, quality control substances and a PBST buffering solution, wherein the quality control substances comprise a positive quality control substance and a negative quality control substance; the positive quality control substance is serum, in which anti-human Hi IgM and IgG antibodies of human Hi infected people are respectively positive; the negative quality control substance is serum, in which anti-human Hi IgM and IgG are respectively negative. The kit and the method have the advantages of simplicity, quickness and high sensitivity, and can be used for carrying out synchronous detection on the anti-human Hi IgM and IgG antibodies.

The invention discloses a jet type slurry erosion wear testing device and a testing method thereof, and belongs to the technical field of erosion wear testing. The testing device comprises a compressed air assistant power mechanism, a test sample erosion mechanism and a slurry supply mechanism, wherein the compressed air assistant power mechanism comprises a compressed air tank; the test sample erosion mechanism comprises nozzles and a test sample chamber; the slurry supply mechanism comprises a slurry tank and a grinding fluid pump which are communicated through a pipeline; the compressed air tank is communicated with the nozzles through an air pipe; the grinding fluid pump is communicated with the nozzles through a grinding fluid pipe; a test sample is arranged in the test sample chamber, the nozzles are inserted into the test sample chamber, and nozzle openings directly face the test sample. According to the device, slurry is adopted for grinding, the grinding fluid pump is taken as output power, compressed air is taken as supplementary power, so that large-range regulation of erosion slurry speed can be realized, and simulation and detection of a specific service condition are facilitated. The problems that a coating material sample chamber is large in size and coating flatness is difficult to control during erosion wear testing are solved.

The invention discloses a synchronization word free speech frame synchronization method in a DMR / PDT system, especially to the synchronization word free speech frame synchronization method in a digital cluster communication system, and belongs to the field of wireless communication. In the DMR / PDT system, a verification result of signaling EMB PDT and a color code related operation manner are embedded to synchronize synchronization word free speech frames, the structure of the synchronization word free speech frames is recovered, the problems in synchronous detection of the synchronization word free speech frames under the low signal to noise ratio and deep fading conditions are solved, and the sensitivity of the receiver is greatly improved.

The invention provides a concentration detection method, device and system of multi-component gas. The method comprises the steps as follows: acquiring a spectral signal of background gas and a spectral absorption signal of to-be-detected mixed gas; calculating the absorption section of the mixed gas in a window in each absorption peak position according to the absorption peak position of gases and the size of corresponding windows; calculating the concentration of the gases in the mixed gas according to the pre-established corresponding relation between the absorption sections of gases and concentration. The synchronous detection of the multi-component gas under the single light source is realized, cross interference of different gases is eliminated, and the detection sensitivity and accuracy are improved.

The invention provides a satellite-borne laser near-coast terrain detection laser radar and a detection method. The satellite-borne laser near-coast terrain detection laser radar comprises a laser, atransmitting optical light splitting device, a large-aperture telescope, a relay optical device, a multi-channel photoelectric detector, a laser controller, a signal acquisition and processing module,a signal conditioning and detector control module and a comprehensive controller. Parallel dual-wavelength laser emission is utilized, large dynamic detection of deep sea and shallow sea seabed echoes is achieved through large and small view field detection of 532 nm wavelength laser echoes, synchronous detection of the sea surface is achieved through 1064 nm echo detection, and therefore the near-coast seabed terrain and a water depth are accurately measured; atmospheric detection is realized through parallel dual-wavelength laser emission and polarization receiving detection; and through multi-beam laser emission and sub-view-field receiving detection, high-efficiency measurement of an ocean wave height and the near-coast land terrain is achieved, the laser radar is carried by a satellite platform, and global-scale near-coast terrain and water depth measurement can be achieved through continuous scanning in a satellite flight direction.

The invention discloses commutator size and appearance defect detection equipment based on CCD vision. The commutator size and appearance defect detection equipment comprises an electrical cabinet, a workbench and a hood, wherein a vibration feeding device is arranged on one side of the workbench, a rotary shifting mechanism connected with a discharging port of the vibration feeding device is arranged on one side of the top surface of the workbench, a glass rotating mechanism connected with a discharging port of the rotary shifting mechanism is arranged in the center of the top surface of the workbench, and a guide mechanism is arranged at the axis of the glass rotating mechanism; a first camera assembly, an optical fiber detection assembly, a second camera assembly, a third camera assembly, a fourth camera assembly, a fifth camera assembly, a sixth camera assembly and a discharging assembly which are located on the outer side of the glass rotating mechanism are sequentially arranged on the top surface of the workbench; and a display is arranged at the top of the outer side wall of the hood. According to the commutator size and appearance defect detection equipment, continuous automatic feeding, placement, positioning, all-dimensional detection and classified discharging of a commutator product to be detected can be realized, appearance detection is comprehensively covered, the detection result is accurate and reliable, and the detection efficiency is high.

The invention relates to the field of pesticide residue extraction and detection methods, in particular to molecularly imprinted magnetic microspheres for triazole pesticides and an application of themolecularly imprinted magnetic microspheres. The magnetic microspheres are prepared with a method comprising steps as follows: 1), Fe3O4 magnetic nanoparticles are prepared with a coprecipitation method, surfaces of the Fe3O4 magnetic nanoparticles are modified with propenyl, and propenyl treatedFe3O4 magnetic shells are obtained; 2), molecularly imprinted polymers capable of recognizing triazolepesticide molecules are synthesized on the surfaces of the propenyl treated Fe3O4 magnetic shells, and the molecularly imprinted magnetic microspheres are obtained. With adoption of a surface imprinting technique, the self-made functional magnetic nanoparticles are taken as carriers for preparation of the magnetic molecularly imprinted nano polymers, an MI-MDSPE-LC-MS / MS method for the triazole pesticides is established on the basis of a magnetic separation technology, synchronous detection of 20 triazole pesticides in a cucumber substrate is realized, so that solid-phase extraction time andcost are saved, and pretreatment speed is effectively increased.

The invention discloses a fluorescence enhanced two-color visual narcotic detection probe and a preparation method thereof. The fluorescence enhanced two-color visual narcotic detection probe is composed of a polydopamine nanosphere and two copper nanoclusters emitting fluorescent lights in different colors under the action of a single exciting light, and a methylamphetamine monoclonal antibody and a ketamine monoclonal antibody are respectively modified on the surfaces of the two copper nanoclusters. The detection probe disclosed by the invention is simple in preparation method, low in cost,easy to use, high in sensitivity and strong in reliability and can realize synchronous visual detection on multiple narcotics.

The invention discloses a method and a kit for performing quick co-detection on anti-Sp (Streptococcus pneumoniae) IgM (Immunoglobulin M) and IgG (Immunoglobulin G) antibodies based on magnetic separation and multi-color quantum dot labeling. The kit consists of anti-Sp antibody capturing nano magnetic beads with an anti-Sp IgM and IgG antibody gathering function, anti-human IgM and IgG antibody nano probes labeled by multi-color quantum dots, quality control substances and a PBST buffering solution, wherein the quality control substance comprise a positive quality control substance and a negative quality control substance; the positive quality control substance is serum, in which anti-Sp IgM and IgG antibodies of Sp infected people are respectively positive; the negative quality control substance is serum, in which anti-Sp IgM and IgG are respectively negative. The kit and the method have the advantages of simplicity, quickness and high sensitivity, and can be used for carrying out synchronous detection on the anti-Sp IgM and IgG antibodies.