69results about How to "Achieving Simultaneous Detection" patented technology

A food package air leakage detection device provided by the present invention comprises a rack, a first conveying device and a second conveying device are symmetrically arranged along the width direction of the rack, the surface of the first conveying device is provided with a fixedly connected detection device, the detection device is provided with a detection box, and the detection box is provided with a fixedly connected extrusion device. A rotating device connected with the rack is arranged between the first conveying device and the second conveying device, the rotating device is provided with a mounting plate, a lifting clamping device is arranged below the mounting plate, and the lifting clamping device comprises a fixing plate, a lifting component and a plurality of clamping components; the detection box in the detection device is provided with a plurality of placement grooves, each placement groove corresponds to one package, the extrusion device extrudes the packages through the extrusion air bag, simultaneous detection of the multiple packages is achieved, and the detection accuracy is improved through sealing and covering of a sealing rubber plate and the detection box and measurement of an air pressure sensor. Whether the package leaks air or not can be accurately judged, so that the detection accuracy and the working efficiency are improved.

The invention relates to the technical field of fire prevention and control, and provides an explosion-proof detector and a battery compartment comprising the explosion-proof detector, the explosion-proof detector is used for detecting gas concentration in an explosive environment, the explosion-proof detector comprises a shell, a detection piece and an integrated piece, the detection piece and the integrated piece are arranged in the shell, the detection piece is arranged close to the inlet end of the shell, and the integrated piece is arranged close to the outlet end of the shell. A sensor capable of detecting the concentration of at least two combustible gases is arranged on the detection part and used for detecting the concentration of the at least two combustible gases entering the shell, and the integrated part is electrically connected with the detection part and used for collecting combustible gas concentration information detected by the detection part and transmitting the combustible gas concentration information to the controller. The explosion-proof detector can integrate detection of various combustible gases, reduces installation points, saves space, simplifies the installation process and concentrates information processing, realizes efficient, simple, convenient and safe combustible gas concentration monitoring, and is suitable for safety monitoring requirements in an explosive environment.

The invention relates to a non-contact multi-target heart rate variability (HRV) detection method based on adaptive variational mode decomposition (VMD). The method comprises the following steps: firstly, performing multi-target detection on human body targets in a detected scene by using a radar technology so as to determine an accurate distance window of each target; then, a signal phase is extracted from the distance window through a differential and cross multiplication algorithm, and then the thoracic cavity displacement signal of each person to be detected is obtained. According to the method, an improved GOA algorithm is adopted to optimize VMD parameters, a new adaptive function HIE (combining permutation entropy, mutual information amount and energy loss rate) is provided to serve as a target function of GOA, and complete self-adaptive VMD decomposition of chest displacement signals of each to-be-tested person is achieved. Through the decomposition, the heartbeat signals and the breathing signals are extracted respectively, so that the heart rate variation characteristic of each person to be detected can be accurately detected. The method provides a high-precision and non-contact HRV detection means, and is suitable for a multi-target scene.

The invention provides a water quality multi-parameter detection method and system based on ultraviolet-visible light section spectroscopy, which are used for detecting turbidity, chemical oxygen demand and nitrate nitrogen concentration in a water sample. The method comprises the following steps: firstly, acquiring spectral data of a water sample, converting the spectral data into absorbance, then calculating influence factors of turbidity, chemical oxygen demand and nitrate nitrogen on a mixed sample spectrum, and dividing a spectral range into three characteristic spectral sections according to the influence factors, which correspond to the turbidity, the chemical oxygen demand and the nitrate nitrogen respectively. And finally, establishing a multi-parameter detection model by using a partial least squares PLS method for predicting turbidity, chemical oxygen demand and nitrate nitrogen concentration. According to the method, the interference of serious overlapping of multi-parameter spectral lines is avoided through segmented analysis of the spectrum, the detection precision is improved by utilizing a method of fusing the first-order derivative spectrum, and particularly, the effect in the aspect of nitrate nitrogen detection is remarkable. The method is easy and convenient to operate and low in cost, and a more effective technical means is provided for water quality monitoring and water environment protection.

The invention provides a micro-fluidic chip and a preparation method and application thereof, and belongs to the field of in vitro diagnose.The micro-fluidic chip comprises aptamer magnetic beads, a reactor and multivalent DNA nanowire reaction liquid, the aptamer magnetic beads comprise aptamer magnetic beads labeled by biotinylated staphylococcus aureus aptamers and aptamer magnetic beads labeled by biotinylated escherichia coli aptamers; the aptamer magnetic beads comprise aptamer magnetic beads labeled by biotinylated staphylococcus aureus aptamers and aptamer magnetic beads labeled by biotinylated escherichia coli aptamers; the reactor comprises two sample micro-chambers, two magnetic suction chambers, two snakelike mixing channels, two detection chambers and a sample outlet; the multivalent DNA nanowire reaction solution is a mixed solution comprising a multivalent DNA nanowire, heme and Tris-HCl. The micro-fluidic chip provided by the invention has the advantages of high sensitivity, strong specificity, low cost and simplicity in operation.

The invention relates to the technical field of preparation and application of functional materials, in particular to a fullerene / metal organic framework loaded with acetylcholin esterase as well as a preparation method and application of the fullerene / metal organic framework. The preparation method comprises the following steps: firstly, preparing a fullerene / metal organic framework C60-coated PCN-222 (Fe) nano-enzyme with a space limited environment, and providing a self-cascade amplification strategy without external energy input based on the activities of oxidase-like OXD and peroxidase-like POD of the fullerene / metal organic framework C60-coated PCN-222 (Fe) nano-enzyme; then, the C60 atched PCN-222 (Fe) is combined with acetylcholin esterase AChE by means of molecular interaction, and an AChE / C60 atched PCN-222 (Fe) enzyme-nano enzyme array flow reactor is further developed. The sensor realizes parallel real-time detection and distinguishing of a plurality of organophosphorus pesticides, and has the advantages of wide linear range, high sensitivity and low detection limit. A promising strategy is provided for design of a nano-enzyme and trace pollutant detection system, and a sensing platform is stable in performance, low in price and convenient for commercialized application.

The embodiment of the invention discloses a dust toxicity detection system and method and a safety helmet, the dust toxicity detection system comprises a detection device and a service platform, a particulate matter sensor of the detection device is used for collecting particulate matter concentration information, and a gas sensor of the detection device is used for collecting harmful gas concentration information; a data processing device of the detection equipment is used for determining a detection result of a target environment and performing alarm processing when the detection result indicates that the target environment is abnormal, and a communication device of the detection equipment is used for sending particulate matter concentration information and harmful gas concentration information to a service platform. And the service platform is used for determining a detection record according to the harmful gas concentration information and the particulate matter concentration information. Therefore, the gas sensor and the particulate matter sensor are integrated into the detection equipment, so that particulate matters and harmful gases in the target environment are detected at the same time, and the situation that the load of operators is increased due to the fact that multiple detection equipment is carried at the same time is also avoided.

The invention relates to the field of environmental chemistry and biological sample analysis, in particular to an analysis method for detecting oxidative stress biomarkers in urine. The analysis method capable of simultaneously detecting dityrosine, 8-hydroxyguanosine, 8-hydroxydeoxyguanosine and 4-hydroxynonenal mercaptouric acid in human urine is provided on the basis of liquid chromatography-tandem mass spectrometry, effective purification of a urine sample is achieved through specific pretreatment, the matrix effect is reduced, and the detection sensitivity is improved. And specific liquid chromatogram parameter conditions are combined, so that simultaneous detection of the four oxidative stress biomarkers is realized. The method is good in selectivity, high in sensitivity and high in detection speed, the problem that polar and non-polar components cannot be measured at the same time at present is solved, the contained oxidative stress biomarkers are more comprehensive and more reasonable, and the oxidative stress damage condition of the organism can be better reflected.

The invention relates to a gas concentration sensing system and a gas concentration detection method. The system comprises a plurality of graphene tilted fiber bragg gratings, each graphene tilted fiber bragg grating is composed of a tilted fiber bragg grating and single-layer graphene, and the single-layer graphene is attached to a grating area of the tilted fiber bragg grating; the wide-spectrum light source is used for generating wide-spectrum light and inputting the wide-spectrum light into the plurality of graphene tilted fiber gratings; the spectrum analyzer is used for carrying out spectrum analysis on the light transmitted by each of the plurality of graphene tilted fiber gratings to obtain spectrum analysis results corresponding to each of the plurality of graphene tilted fiber gratings; and the demodulation system is used for acquiring the spectral analysis results corresponding to the plurality of graphene tilted fiber bragg gratings sent by the spectrum analyzer, and calculating the gas concentrations of the plurality of preset gases based on the spectral analysis results. By adopting the system, the gas concentrations of various gases can be measured at the same time.

The invention discloses a mid-infrared multi-peak narrow-band high-quality factor metasurface filter and a method. The filter comprises a dielectric layer; the metasurface is arranged on the dielectric layer and comprises a plurality of semiconductor structures which are arranged periodically, and each semiconductor structure is composed of a plurality of cuboids with different sizes; according to the metasurface, under vertical incidence of electromagnetic waves in a TE polarization mode, the electromagnetic waves generate multiple electromagnetic resonance modes in the semiconductor structure, so that the filtering effect is achieved; wherein the multiple electromagnetic resonance modes comprise electric dipole resonance, magnetic dipole resonance, multi-dipole resonance or Fano resonance. According to the invention, the red shift or blue shift of the filtering frequency is carried out by adjusting the geometric dimension parameters of the semiconductor structure, so that the filtering effect with a multi-peak high-quality factor is realized, and the excellent narrow-band filtering and gas detection functions are realized. The method can be widely applied to the field of special gas sensor design.

The invention belongs to the technical field of exosome protein detection, and provides an SERS (Surface Enhanced Raman Scattering) sensing platform for synchronously and jointly detecting exosome protein and a preparation method of the SERS sensing platform. Preparing a magnetic bead-exosome compound, and respectively marking the three proteins on the surface of the exosome by using different SERS tags; depositing silver nanoparticles in situ on the immunomagnetic bead-exosome compound; preparing a gold film array substrate for SERS (Surface Enhanced Raman Scattering) detection, and obtaining SERS signals corresponding to each protein on the exosome by utilizing an SERS synergistic enhancement effect of multistage signal amplification. A SERS sensing platform integrating separation, enrichment and detection is constructed and is used for high-sensitivity detection of exosome protein. The binding efficiency of the exosome and the precious metal Raman probe is remarkably improved, and the feasibility of synchronous combined detection of multiple proteins in the same sample is improved. The method is high in detection sensitivity and good in specificity, and high-throughput detection of exosome protein can be realized.

The utility model relates to the technical field of battery cell testing, in particular to an expansive force testing tool for a cylindrical battery cell. The device comprises a base, the top of the base is provided with a station platform and a battery cell fixing seat capable of rotating around a vertical axis, a pressing plate is arranged right above the station platform, and the pressing plate is driven by a straight stroke elastic mechanism and generates radial horizontal displacement action towards the station platform. A pressure sensor is arranged between the pressing plate and the advancing end of the straight stroke elastic mechanism, a pressing part is formed by the side, close to the vertical axis of the station platform, of the pressing plate, and the appearance of the pressing part is matched with the outer contour of a battery cell. The utility model provides a tool for testing the expansibility of a cylindrical battery cell, which can detect the expansibility of the periphery of the battery cell in all directions, avoid detection dead angles and ensure the accuracy of testing the expansibility of the battery cell.

The invention relates to blood concentration detection, in particular to a reagent and a method for detecting a monoclonal antibody drug and an anti-monoclonal antibody drug antibody. The reagent for detecting the monoclonal antibody drug and the anti-monoclonal antibody drug antibody comprises a reagent C and a reagent D, wherein the reagent C comprises a mouse anti-F (ab) 2 monoclonal antibody-1 coupling luminous marker and mouse anti-F (ab) 2 monoclonal antibody-2 coupling biotin; the reagent D comprises a macromolecular monoclonal antibody drug coupled luminous marker and F (ab) 2 coupled biotin; the mouse anti-F (ab) 2 monoclonal antibody-1 coupling luminous marker and the macromolecular monoclonal antibody drug coupling luminous marker are mouse anti-F (ab) 2 monoclonal antibody-1 and macromolecular monoclonal antibody drugs which are marked by luminous markers. According to the invention, the monoclonal antibody drug and the anti-drug antibody thereof can be simultaneously detected by one sample, the reaction steps are fewer, and the reaction time is shorter.

The invention discloses an elastic positioning type detection system for automatically conveying a pressure gauge to be detected. The detection system comprises a conveying device, a positioning device, a detection box, a gauge pressing mechanism and a head pressing mechanism, at least three positioning devices are installed at the output end of the conveying device, the conveying device is used for circularly conveying all the positioning devices, and the positioning devices are suspended out of one side of the conveying device. A detection box is mounted on one side of the conveying equipment, an electric connection hole and a ventilation jack are formed in the detection box, and a meter pressing mechanism and a head pressing mechanism are mounted above the detection box; the positioning equipment comprises a mounting seat, a jacking type positioning device and a lifting type elastic clamping device, the mounting seat is mounted at the output end of the conveying equipment, and the jacking type positioning device is mounted on the mounting seat. The elastic positioning type detection system for automatically conveying the to-be-detected pressure gauges solves the problem that in the prior art, multiple to-be-detected pressure gauges cannot be simultaneously detected after the to-be-detected pressure gauges are automatically conveyed.

The utility model relates to the technical field of air quality detection, and discloses an air quality detection device, which comprises a shell, a placing groove arranged at the top of the shell, a plurality of positioning grooves arranged inside the placing groove, and a side piece arranged on the side wall of the shell, according to the air quality detection device disclosed by the utility model, a plurality of sampling tubes are placed in the placement groove, samples in the sampling tubes are pushed into the air storage bag by utilizing the electric push rod, and then the samples are detected by matching with the pumping type sensor, so that the simultaneous detection of the plurality of samples can be realized, and the use of the air quality detection device when the samples are more is facilitated; the use convenience of the air quality detection device is improved; according to the air quality detection device, by arranging the multiple piston type sampling pipes which are positioned and matched in the containing groove in a magnetic attraction mode, multiple point positions can be sampled and then detected, the air quality detection device does not need to be moved to the position needing to be detected, and use of the air quality detection device is facilitated.

The invention belongs to the technical field of chips, and particularly relates to a preparation system and a preparation method of an electrochemical micro-fluidic chip, the preparation system comprises a first conveyor, the first conveyor is used for continuously conveying chips on an electrochemical micro-fluidic chip automatic production line for preparation; a plurality of pressing and covering discs are arranged to synchronously package a plurality of electrochemical micro-fluidic chips which are being conveyed in a non-stop manner, so that a traditional manner of sequentially packaging a single electrochemical micro-fluidic chip in an intermittent stop manner is replaced, and the packaging efficiency of the electrochemical micro-fluidic chips is improved; the two opposite guide plates are used for guiding the conveyed electrochemical micro-fluidic chip, the conveying deviation prevention effect on the electrochemical micro-fluidic chip is achieved, sliding plates on the guide plates slide on the inner wall of a first fixing frame, the position of the sliding plates is fixed through cooperation of limiting rods, the distance between the two guide plates can be adaptively adjusted, and the conveying deviation prevention effect on the electrochemical micro-fluidic chip is achieved. The method is suitable for preparing different types of electrochemical micro-fluidic chips.

The invention discloses a preparation method of structural color hydrogel microspheres for acute kidney injury multi-labeling detection, which comprises the following steps: S1, shearing a silicon dioxide nanoparticle solution into liquid drops, drying the obtained liquid drops, cleaning and calcining to obtain silicon dioxide photonic crystal microspheres; s2, soaking the obtained silicon dioxide photonic crystal microspheres in a hydrogel precursor solution, performing cross-linking curing by ultraviolet irradiation after full incubation, and then stripping and corroding the obtained product to obtain hydrogel structural color microspheres; s3, modifying an acute kidney injury marker antibody to the hydrogel structural color microspheres through chemical coupling, so as to obtain the structural color hydrogel microspheres for acute kidney injury multi-element marker detection. The structural color hydrogel microspheres obtained by the invention can realize simultaneous detection of various acute kidney injury markers, and can enhance fluorescence signals and sensitivity of detection at the same time.

The invention relates to a verification device based on an empty box pressure gauge, and relates to the field of verification equipment based on the empty box pressure gauge. The plurality of groups of detection modules are fixedly connected with the workbench and are respectively provided with a detection flow channel, and each detection flow channel is provided with a detection end and a pressure relief end; the air supply module is fixedly connected with the workbench and is provided with an air supply flow channel, the detection flow channel is communicated with the air supply flow channel, and the air supply flow channel is provided with a standard end; the standard pressure gauge is connected with the standard end; and the driving module is fixedly connected with the workbench and is provided with a plurality of driving ends. According to the invention, by arranging a plurality of groups of detection modules, simultaneous detection of a plurality of groups of empty-box pressure gauges is realized, the detection efficiency of the empty-box pressure gauges is improved, the production cost of the empty-box pressure gauges is reduced, the driving end is utilized to drive the pressure relief end to move, rapid pressure relief of the calibrating device is realized, the disassembly and assembly time of the empty-box pressure gauges is reduced, and the detection efficiency of the empty-box pressure gauges is improved. And the detection efficiency of the empty box pressure gauge is further improved.

The microfluidic device comprises a substrate, a micro-channel layer, a porous microelectrode array and a cell culture layer which are sequentially arranged from bottom to top, the micro-channel layer is fixed to the substrate, at least part of the porous microelectrode array is fixed between the micro-channel layer and the cell culture layer, and the cell culture layer is fixed to the micro-channel layer; a first through hole and a second through hole are formed in the cell culture layer, a first blind hole, a second blind hole and a microfluidic channel are formed in one surface, close to the cell culture layer, of the microfluidic channel layer, two ends of the microfluidic channel are communicated with the first blind hole and the second blind hole respectively, the first through hole is aligned with the first blind hole, and the second through hole is aligned with the second blind hole. A plurality of third through holes are formed in the part, located between the micro-channel layer and the cell culture layer, of the porous microelectrode array, the first through holes and the first blind holes are communicated with each other through at least part of the third through holes, and the second through holes and the second blind holes are aligned and communicated with each other.

The utility model provides a fetus-voice meter which comprises a fetus-voice meter body, a first metal electrode, a second metal electrode and a finger touch metal electrode assembly, and the first metal electrode and the second metal electrode are respectively installed on a human body contact face of an ultrasonic probe of the fetus-voice meter body. The finger touch metal electrode assembly is installed on the side face of the fetus-voice meter body and comprises a first finger electrode clamping piece, a second finger electrode clamping piece, a first shell, a second shell and a torsional spring. The device has the advantages that the heart rate of a mother can be detected through the first metal electrode, the second metal electrode and the finger touch metal electrode assembly, the fetal heart and the heart rate of the mother can be detected at the same time, fingers are clamped by touching the metal electrode assembly through the fingers, it can be guaranteed that touch of the fingers is reliable during detection, and the detection accuracy is improved. And the problem of inaccurate detection caused by unreliable finger touch is solved.

This invention discloses a calorimetric and infrared (IR) coupled device and method capable of simultaneously detecting the strength and state of solid-gas (liquid) interactions. The device, combined with a calorimeter having a measuring channel and an infrared measurement module, can simultaneously measure the strength and state of solid-gas (liquid) interactions. This invention also discloses a method for studying and detecting the strength and state of solid-gas (liquid) interactions. The amount of gas or liquid involved in the interaction is obtained by subtracting the amount of gas or liquid after the interaction from the initial mass of the gas or liquid, and the amount of substance is quantitatively obtained through a mass spectrometer connected to the device. The calorimetric and infrared coupled device and method disclosed in this invention can simultaneously obtain the strength and state of solid-gas (liquid) interactions in a single experiment.

The invention provides a pipeline steel corrosion rate sensor and a data transmission system, the data transmission system adopts multi-wire parallel control, each collector is provided with a split data collection unit, and the collectors are controlled to collect and record data. A plurality of sensors can be mounted on the pipeline, and acquisition terminals of the sensors are connected in parallel through a data transmission bus and then merged into a data analysis transmission bus system to be recorded and transmitted to an upper computer; the corrosion rate sensor is of a planar spiral structure. Two reference electrodes are arranged at the center of the sensor and are used for measuring the corrosion rate by adopting an electrochemical method; and the split data acquisition unit is adopted, so that simultaneous detection of multiple parts of the pipeline is realized, and detection and analysis of the corrosion rate of the pipeline are realized. The electrode with a planar spiral structure can realize a plurality of corrosion rate detection methods. And obvious improvement effects on data fluctuation and errors are achieved when intermediate-frequency impedance is measured. The corrosion current density of the pipeline can be detected by a three-electrode system, and the equipment installation cost is reduced.

The utility model discloses a kind of comprehensive measuring devices of crankshaft connecting disc, it is related to mechanical parts detection technical field, comprising: fixed plate;First measurement claw for measuring the first shaft diameter of crankshaft connecting disc, first measurement claw is fixed in fixed plate, and first measurement claw is equipped with the first positioning slot for supporting the first shaft body of crankshaft connecting disc;Second measurement claw for measuring the second shaft diameter of crankshaft connecting disc, second measurement claw is floatingly arranged in fixed plate, and second measurement claw is equipped with the second positioning slot for supporting the second shaft body of crankshaft connecting disc;Displacement sensor, be arranged in fixed plate, and displacement sensor is used to measure the floating displacement of second measurement claw;Wherein, first measurement claw and second measurement claw are equipped with pneumatic gauge. Above-mentioned comprehensive measuring device of crankshaft connecting disc, personnel skill requirement is low, production front-line staff can detect, satisfy workshop on-site mass production's nearby rapid measurement, improve detection efficiency, match mass production rhythm.

The invention provides a molecularly imprinted polymer membrane based on microfluidic confinement and a preparation method and application thereof, the preparation method comprises the following steps: taking a base material, and arranging a microchannel on the base material; adding the prepolymerization solution into the microchannel; the prepolymerization solution comprises a silane coupling agent, template molecules, a cross-linking agent and a catalyst; and carrying out polymerization reaction on the prepolymerization solution under a confinement condition to prepare the molecularly imprinted polymer membrane. The microchannel is used for providing a confinement environment for in-situ growth of the molecularly imprinted polymer film, simultaneous imprinting of multiple template molecules is achieved, the obtained molecularly imprinted polymer film is uniform and controllable in thickness and matched with a detection probe, simultaneous detection of multiple substances can be achieved, the preparation method is simple, and preparation conditions are mild. According to the invention, high-integration-level detection of MIPs and NIPs is realized on the same chip, and the chip is simultaneously applied to simultaneous identification, separation, enrichment and detection of simultaneous detection of various substances.

The invention provides a partial discharge detection method for a cable transformer bank, and belongs to the technical field of partial discharge detection.The partial discharge detection method comprises the steps that short-circuit inductance of a three-phase transformer is obtained according to basic parameters of the three-phase transformer by means of traditional cable oscillation wave partial discharge testing equipment and technology, and the three-phase transformer is connected into a circuit in series; the distributed capacitance of the cable line, the additional resonant inductor and the inductor of the three-phase transformer form an LC oscillating circuit, the partial discharge of the cable line and the partial discharge of the three-phase transformer are detected at the same time in an oscillating wave partial discharge detection mode, the three-phase transformer and the cable do not need to be independently isolated for respective detection, the detection time is greatly shortened, and the detection efficiency is improved. The device is mainly applied to field detection of new energy power stations and large industrial and mining enterprises.

The application relates to a multi-parameter water quality monitoring device which comprises a turbidity sensor, a flow cell, a residual chlorine sensor, a PH sensor and a conductivity sensor; the turbidity sensor is suitable for being connected to a water inlet; the flow cell is internally provided with a residual chlorine sensor bin, a PH sensor bin, a conductivity sensor bin and a connecting channel; the residual chlorine sensor bin, the PH sensor bin and the conductivity sensor bin are vertically arranged; the connecting channel is horizontally arranged and is in communication with the bottoms of the residual chlorine sensor bin, the PH sensor bin and the conductivity sensor bin; the residual chlorine sensor is arranged at the internal top end of the residual chlorine sensor bin; the PH sensor is arranged at the internal top end of the PH sensor bin; and the conductivity sensor is arranged at the internal top end of the conductivity sensor bin; the flow cell is further internally provided with a pressure stabilizing bin; the pressure stabilizing bin is vertically arranged, the bottom of the pressure stabilizing bin is connected with the end of the connecting channel, the top of the pressure stabilizing bin is connected with the turbidity sensor, and the end of the connecting channel, which is away from the pressure stabilizing bin, is provided with a water outlet.

The invention discloses a fluorescent probe for dual-channel detection of sodium bisulfite and hydrogen peroxide, a preparation method and an application thereof, wherein the fluorescent probe is (E)-3-ethyl-1,1-dimethyl-2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1H-benz[e]indole-3-iodide, and its structural formula is The invention also specifically discloses a preparation method of the fluorescent probe for dual-channel detection of sodium bisulfite and hydrogen peroxide, and its application in simultaneously and rapidly and highly selectively identifying sodium bisulfite and hydrogen peroxide, and in preparing a dual-channel imaging detection drug for hydrogen peroxide and sodium bisulfite in cells. The invention realizes colorimetric detection of sodium bisulfite and hydrogen peroxide, realizes simultaneous detection of sodium bisulfite and hydrogen peroxide for the first time, and has fast response, low detection limit and high selectivity.

The invention belongs to the field of tricholoma matsutake multi-dimensional detection and quality classification detection equipment, and provides a multi-dimensional tricholoma matsutake quality classification detection device which comprises an impedance detection sub-device, a hyperspectral detection sub-device, an electronic nose detection sub-device and a data processing station, the impedance detection sub-device comprises a tricholoma matsutake information acquisition module; the tricholoma matsutake information acquisition module comprises a detection electrode plate, a spring and a pressure sensing patch. According to the invention, clamping and surface data acquisition of a detected target tricholoma matsutake are realized through the impedance detection sub-device, and the ductility and stability of the impedance detection sub-device are improved by using a spring and a rotatable detection electrode plate; the appearance and impedance of the tricholoma matsutake can be detected at the same time through the pressure sensing patch and the detection electrode plate, and the detection efficiency is improved; multidimensional nondestructive detection on the appearance, smell and components of the tricholoma matsutake can be realized by combining hyperspectrum and electronic nose detection; and the whole process of the tricholoma matsutake from freshness to corruption can be monitored in real time through the data processing station.

The invention provides an integrated micro-fluidic chip as well as a preparation method and application thereof, and belongs to the technical field of electrochemical and fluorescent dual-mode detection. The integrated micro-fluidic chip disclosed by the invention consists of a micro-fluidic chip and a peristaltic pump, the micro-fluidic chip comprises a chip upper layer, a chip lower layer and a middle sealing layer, the chip lower layer comprises a conductive indium tin oxide / polyethylene glycol terephthalate flexible substrate film and an electrode layer constructed on the conductive indium tin oxide / polyethylene glycol terephthalate flexible substrate film; the middle sealing layer comprises a liquid flowing layer and an acrylic plate provided with three circular detection cells; the upper layer of the chip is a visible cover plate, and the visible cover plate is formed by polydimethylsiloxane reverse mold synthesis. The method can realize simultaneous detection of electrochemical signals and fluorescence signals of various target objects, and has the advantages of simplicity and convenience in operation, high detection speed and low cost.

The present invention belongs to the technical field of nuclear fuel element manufacturing, and specifically relates to a fuel element grid strip stiffness detection clamping tool and a method of use. The present invention produces a detection fixture and a pressure head for two grid strips, and the clamping of the strip by the fixture fully meets the technical requirements. The double movable pressure head design of the present invention ensures full contact between the pressure head and the rigid convex, and fully realizes the simultaneous detection of the double rigid convex. The detection method of the present invention is accurate and reliable, and realizes the measurement of the strip clamping unit spring / rigid convex load-deformation curve.