90results about How to "Simplify detection steps" patented technology

The invention provides a near infrared spectrum rapid evaluation method for the protein content of brown rice. The method comprises the following steps: acquiring optical signals of different varieties of brown rice under a near-infrared band and physicochemical indexes measured according to a traditional method, preprocessing the acquired optical signals by utilizing a smoothing (Savitzky-Golay) method, and constructing a brown rice protein content evaluation model based on machine learning and a characteristic band selection algorithm; effective prediction of the protein content of the brown rice is realized only through optical characteristic parameters. According to the method, the protein content of the brown rice can be predicted only by collecting the near infrared spectrum of the brown rice, and in food processing enterprises, the technology can remarkably improve the efficiency and stability of product quality monitoring, support real-time online detection and provide an efficient and rapid quality control scheme for the enterprises, so that the product consistency is improved, the waste of raw materials is reduced, and the production cost is reduced. The production benefit is improved.

The invention relates to the technical field of dispensing detection, in particular to a real-time online detection method and system for glue hanging of a dispensing needle. The method comprises the following steps: acquiring a step image and an end face image of a dispensing needle collected by a visual device; processing the step image based on an image processing algorithm to obtain center coordinates of the needle step; mapping the circle center coordinate of the needle head step to the needle head end face image, wherein the circle center coordinate of the needle head step is used as a glue hanging detection positioning coordinate # imgabs0 #; the outer circle radius # imgabs 1 # of the needle end face is calculated, and a needle end face area is segmented on the needle end face image in combination with the glue hanging detection positioning coordinate # imgabs 2 #; acquiring the width W of a rubberizing detection area, and acquiring the rubberizing detection area by combining the circle center coordinate of the needle step and the excircle radius of the needle end face; the area of the glue area in the glue hanging detection area is calculated and compared with the preset value, and real-time online detection is carried out on glue hanging of the dispensing needle head according to the comparison result, so that the detection steps are simplified, the detection efficiency and precision are improved, and the yield of dispensed products is high.

The utility model discloses SF6 gas decomposition product analysis equipment which comprises a first gas chamber, a second gas chamber, a first flow dividing device and a vacuum gas pump, a vacuum pump is used for vacuumizing to prevent foreign gas from interfering test data, and a first concentration sensor used for detecting gas concentration is arranged in the first gas chamber; a first concentration sensor used for detecting gas concentration is arranged in the first gas chamber, a second concentration sensor used for detecting gas concentration is arranged in the second gas chamber, the first flow dividing device is arranged between the first gas chamber and the second gas chamber, the first flow dividing device comprises a first flow sensor and a first flow divider, and the first flow sensor is used for monitoring flow of flowing gas; the first flow divider is used for adjusting the flow of flowing gas; the SF6 gas decomposition product analysis equipment is provided with a gas inlet and a gas outlet, the gas inlet, the vacuum gas pump and the first gas chamber are connected through a three-way valve, the three-way valve is used for controlling and switching the first gas chamber to be communicated with the vacuum gas pump or the gas inlet, and the second gas chamber is communicated with the gas outlet.

The embodiment of the invention provides a seal analysis method and system, electronic equipment and a storage medium, and belongs to the field of target detection and text recognition. The method comprises the following steps: acquiring a to-be-analyzed image, inputting the to-be-analyzed image into a feature extraction module in a pre-constructed analysis model, extracting image feature information and feature position information, and outputting a fused feature matrix through matrix fusion; inputting the fusion feature matrix into a feature coding module to obtain global features of the fusion feature matrix; and inputting the global feature and the target feature learning matrix into a prediction module to obtain a seal type, a seal frame and seal text content. Image end-to-end seal analysis is provided, a seal detection task and a seal identification task are constructed into an analysis model, the use efficiency of feature coding can be improved, the capability and training speed of a coding module can be further improved through constraint of two prediction heads on the coding module, and the method is more suitable for popularization and application. And error accumulation caused by a plurality of steps is reduced.

The invention relates to the field of safety supervision, in particular to a food safety supervision system based on a cloud platform, and the system comprises a collection module which collects a contour diagram of a package and a morphological diagram of target food; the fitting degree analysis module is used for determining the contour coincidence degree and the edge distance according to the contour map and the form map, and determining whether the fitting degree of the target food and the package is qualified or not based on the contour coincidence degree and the edge distance; the shake risk analysis module is used for detecting the package with qualified fitting degree to obtain the deformation degree and the distribution condition of the package folds in the transportation process so as to determine whether the shake risk is qualified or not; the packaging material evaluation module is used for carrying out migration test on the package with the qualified shaking risk so as to evaluate the material safety of the package according to the migration condition of substances in the packaging material to the food; and the safety determination module determines that the target food in the package is safe food according to the fitting degree, the shaking risk and the material safety. And comprehensive guarantee is provided for food safety.

The invention discloses a clothes weight detection method of a washing machine and a related device. The method comprises the following steps: driving a driving motor of the washing machine to operate at a first speed based on a preset torque current, and obtaining a load torque of the driving motor at the first speed; performing zero clearing operation on the torque current to control the rotating speed of the driving motor to be reduced based on the first speed; in response to the condition that the speed reduction operation of the driving motor reaches a set condition, the speed variation and the time variation of the rotating speed of the driving motor are obtained; wherein the set condition comprises that the falling time from the first speed to the second speed or the rotating speed reaches a preset time threshold value; and obtaining the weight of the clothes in the washing machine based on the load torque, the speed variation and the time variation. The clothes weight detection efficiency and accuracy of the washing machine can be improved.

The invention discloses a chip layout detection method and device, equipment, a storage medium and a program product, and relates to the technical field of semiconductor detection. The chip layout detection method comprises the following steps: acquiring an initial design layout, a first compensation layout and a second compensation layout; determining whether the second compensation layout meets an etching compensation target or not according to a graphic geometrical relationship among the initial design layout, the first compensation layout and the second compensation layout; under the condition that the second compensation layout does not meet the etching compensation target, according to the size information of the graph edges of the second compensation layout, determining the non-in-place compensation edges with non-in-place etching compensation in the graph edges; determining a first non-overlapping region of the first compensation layout and the second compensation layout according to a graphic geometrical relationship between the first compensation layout and the second compensation layout; and determining the first non-overlapped region where the non-in-place compensation edge is located as the non-in-place compensation region of the second compensation layout.

The present invention relates to the field of glue dispensing detection technology, and in particular to a real-time online detection method and detection system for glue hanging on a glue dispensing needle. The method includes: obtaining a step image and an end face image of a glue dispensing needle collected by a visual device; processing the step image based on an image processing algorithm to obtain the center coordinates of the needle step; mapping the center coordinates of the needle step to the needle end face image, and using the center coordinates of the needle step as the glue hanging detection positioning coordinates; calculating the outer circle radius of the needle end face, and then dividing the needle end face area on the needle end face image in combination with the glue hanging detection positioning coordinates; obtaining the width W of the glue hanging detection area, and obtaining the glue hanging detection area in combination with the center coordinates of the needle step and the outer circle radius of the needle end face; calculating the area of ​​the glue area in the glue hanging detection area, and comparing it with a preset value, and performing real-time online detection of glue hanging on the glue dispensing needle according to the comparison result, thereby simplifying the detection steps, improving the detection efficiency and accuracy, and achieving a high yield rate of glue dispensing products.

The utility model relates to the technical field of rotational molding oil tank production, in particular to an intelligent clamping device for rotational molding oil tank production, which comprises a bottom plate and an oil tank body, a clamping device is arranged at the top end of the bottom plate, a supporting block is fixedly connected to the top end of the bottom plate, and a baffle is fixedly connected to the side wall of the supporting block. The clamping device comprises a first telescopic air cylinder installed at the top end of the bottom plate, the top end of the first telescopic air cylinder is fixedly connected with a first installation block, a rotating motor is fixedly installed at the top end of the first installation block, the output end of the rotating motor is fixedly connected with a second installation block, and a second telescopic air cylinder is fixedly installed on the side wall of the second installation block. According to the intelligent clamping equipment for rotational molding oil tank production, the detection steps can be simplified, the detection efficiency can be improved, meanwhile, the effect of rapidly transferring the oil tank body can be achieved, the production efficiency of the oil tank body can be improved, and actual use is facilitated.

The application provides an optical detection system and a detection method, and relates to the field of optical detection. The system comprises a first detection mechanism, a second detection mechanism and a third detection mechanism cooperating with a moving mechanism. The first detection mechanism, the second detection mechanism and the third detection mechanism are distributed around a preset path and correspond to different detection positions respectively. The moving mechanism is configured to place a mask and drive the mask to move along the preset path. The first detection mechanism, the second detection mechanism and the third detection mechanism are respectively used for optical detection of the inner wall surface of a support frame, the front and back surfaces of a glass plate, the front surface of a protective film, the side end of the glass plate and the outer wall surface of the support frame. The application can continuously detect multiple regions of the mask, thereby simplifying the overall detection steps of the mask, improving the overall detection efficiency of the mask, and alleviating the problem of insufficient stability of the detection result caused by the influence of differences in clamping precision and environmental factors due to single-path multi-detection.

The utility model belongs to the technical field of copper-clad plate detection, and particularly relates to a copper-clad plate detection device which comprises a machine body, and a rectangular digging hole is formed in the center of the top end of the machine body; through the design that the ink box and the electrostatic plate are arranged at the top end of the device, ink in the ink box can be adsorbed to the surface of the electrostatic plate through the electrostatic effect, and then in the scanning process, if an uneven part exists on the surface of a copper-clad plate, the ink located on the electrostatic plate can be scraped to the surface of the copper-clad plate by the uneven part, so that the surface of the copper-clad plate cannot be scraped. Then whether the copper-clad plate is flat or not is judged by observing whether ink remains on the surface of the copper-clad plate or not, so that the uneven part of the copper-clad plate can be visually marked, and the detection steps are simplified; and through the design that the scale plates are arranged on the two sides of the device and the pointer is arranged at the top end of the clamping structure, whether the length of the copper-clad plate is qualified or not can be judged through the scale pointed by the pointer when the sliding block slides, so that various indexes can be tested under the condition that the same device is used.

The invention discloses a method for simultaneously determining (+)-2-aminobutanol and ethambutol hydrochloride based on an RP-HPLC-NQAD method, and particularly relates to the technical field of drug detection. The method comprises the following steps: preparing standard curves of ethambutol hydrochloride and (+)-2-aminobutanol; taking the ethambutol hydrochloride tablets, and grinding the ethambutol hydrochloride tablets into powder to obtain ethambutol hydrochloride tablet powder; adding purified water into the ethambutol hydrochloride tablet powder, carrying out ultrasonic dissolution, and respectively diluting the ethambutol hydrochloride tablet powder to 2 mg / ml and 0.25 mg / ml with water to respectively obtain two loading analysis solutions; and detecting the upper analysis liquid by a reversed-phase high performance liquid chromatography tandem hydrogel particle laser technology detector, and calculating to obtain the concentrations of ethambutol hydrochloride and (+)-2-aminobutanol. The method has the advantages that the content of ethambutol hydrochloride and the content of (+)-2-aminobutanol compounds can be detected at the same time, results do not interfere with each other in the detection process of the two compounds, derivation is not needed in pretreatment, accuracy is high, sensitivity is high, and durability is good.

The utility model discloses a roller carrier for a round tube detection tool, which comprises a base, the upper surface of the base is fixedly connected with a working box, the right side surface of the working box is fixedly connected with a case, the upper surface of the working box is provided with an adjusting groove, and symmetrical bearings are fixedly embedded in the inner wall of the working box. The inner rings of the two bearings are jointly and fixedly connected with a right-hand and left-hand threaded shaft, the outer surface of the right-hand and left-hand threaded shaft is in threaded connection with symmetrical adjusting blocks, and the upper surface of each adjusting block is fixedly connected with a fixed stand column. According to the utility model, through the mutual cooperation of the right-and-left threaded shaft, the bearing and the adjusting block, the adjusting block can be driven to move leftwards or rightwards through the rotation of the right-and-left threaded shaft, and the adjusting block is utilized to drive the mounting seat and the detection wheel to move leftwards or rightwards through the fixed stand column, so that the effect of adjusting the distance between the roller carriers is achieved; and a servo motor is arranged, so that a power output mechanism of the device is formed.

The invention belongs to the technical field of motor shaft dynamic balance detection, and particularly relates to detection equipment for a motor shaft, which comprises a bottom frame, and the two ends of the bottom frame are respectively provided with a driving unit and a detection unit; the supporting modules are arranged at the two ends of the bottom frame, and the driving unit and the detection unit are fixedly connected to the bottom frame through the supporting modules; the driving unit comprises a transmission shaft fixedly connected with the output end of the motor; the driving guide wheel is fixedly connected to the transmission shaft; by arranging the driving unit and the detection unit, the rotor body can be locked depending on the self weight of the rotor body when the rotor body is placed, and then the dynamic balance of the rotor body is detected by controlling the motor to start, driving the rotor body to rotate by utilizing a belt in the driving unit and cooperating with a sensor in the detection unit. Multi-step operation is not needed, errors possibly occurring in the multi-step operation are reduced, and therefore the authenticity of dynamic balance detection of the rotor body is improved.

This invention discloses a method and kit for determining the full-length RHD and RHCE mRNA based on third-generation sequencing, belonging to the field of biotechnology. It addresses the limitations of existing technologies in determining the full-length RHD and RHCE mRNA, detecting low-level splice variants, and relatively quantifying transcripts. The method includes: mRNA extraction and cDNA reverse transcription; PCR amplification; third-generation sequencing library construction and sequencing; sequencing data filtering and quality control; and transcript expression analysis. The kit includes primers for simultaneously amplifying the full-length RHD and RHCE transcripts. This invention successfully utilizes long-chain single-molecule sequencing technology to sequence the full-length transcripts of the RHD and RHCE genes, detecting multiple transcripts of the RHD and RHCE genes in RhD-positive and Del-type samples, and enabling relative quantification of the expression levels of different transcripts, providing a new method for revealing the molecular mechanisms of Rh blood type variations. The simultaneous detection method of this invention can obtain results for two genes in one step, simplifying the experimental procedure and enriching the detection results.

A display screen testing device with various interfaces comprises a detection device which comprises a detection plate; the detection board is provided with a detection chip, and the detection board is provided with an interface assembly; the detection chip is an interface conversion chip; and the interface assembly comprises an RGB interface to MIPI, LVDS, EDP interface and the like. According to the display screen testing device with the various interfaces, the detection chip is arranged on the detection board, and the switching code and the switching circuit are arranged in the detection chip, so that a switching function can be realized, a switching port with a switching chip does not need to be accessed from the outside for detection, an interface switching chip circuit is saved, and the cost is reduced. And a test bottom plate program does not need to write codes of an interface conversion chip part, so that the aims of simplifying the detection steps and improving the detection efficiency of the display screen are fulfilled.

The present invention provides a method for rapidly detecting bacterial, fungal and mycoplasma contamination during the culture of mesenchymal stem cells based on fluorescent quantitative PCR, and belongs to the technical field of microbial detection. A DNA-specific fragment for detecting bacteria, fungi and mycoplasma includes a DNA fragment with a nucleotide sequence such as that shown in SEQ ID NO:1 or a DNA fragment with a length of more than 50% cut off on the basis of SEQ ID NO:1. Based on the DNA-specific fragment, the present invention designs a universal primer for detecting bacteria, fungi and mycoplasma. qPCR detection using the universal primer can rapidly and specifically detect whether there is bacterial, fungal and mycoplasma contamination in mesenchymal stem cell preparations, and the method is simple and accurate, takes less time than conventional culture methods, and the results can be qualitatively analyzed.

The invention discloses a salmonella H: i epitope specific monoclonal antibody and application thereof, the salmonella H: i epitope specific monoclonal antibody is secreted by hybridoma cells with the preservation number of CCTCC NO: C202645, and the antibody has the advantages of high titer and strong specificity. According to the blocking ELISA detection kit constructed by the antibody and the detection method of the blocking ELISA detection kit, the antibody containing H: i antigen epitope salmonella in infected animal serum can be specifically detected, the antibody does not react with antibodies containing no H: i antigen epitope salmonella and non-salmonella, the sensitivity, specificity and stability are good, and the detection method is simple and convenient. And a new method is provided for direct serological detection of H: i antigen epitope-containing salmonella infection of mouse typhimurium, kafenkii and the like.

The invention relates to the technical field of photovoltaic energy storage inverter grid-connected and off-grid detection, and discloses an inverter grid-connected and off-grid detection method, device and equipment and a storage medium, and the method comprises the steps: judging whether an inverter is in a grid-connected operation state or not; when the inverter is in the grid-connected operation state, acquiring the fundamental voltage of the inverter and the sampling voltage of the power grid at the current moment; after virtual power grid voltage is obtained through calculation based on the fundamental wave voltage, phase voltages of the same phase between the virtual power grid voltage and the sampling voltage are compared; and in a preset time, if the difference value of the phase voltage of at least one phase is out of a preset range, determining that the inverter is in an off-grid state. According to the method, false triggering detection is not easy, the calculation process related to grid-connected and off-grid detection of the power grid voltage is simplified, the problem that the proportion of chip resources is too high during calculation is solved, and meanwhile the accuracy and rapidity of grid-connected and off-grid detection are improved.

The invention provides a rapid detection method for non-pralazone illegally added in food, and belongs to the technical field of medicine detection. The method comprises the following steps: respectively carrying out secondary extraction on a food sample by adopting a strong polar extraction agent and a non-polar extraction agent to obtain extracted supernate; removing the non-polar extraction agent in the supernate by adopting a nitrogen blowing method; eluting the supernate subjected to nitrogen blowing treatment by adopting a strong polar solvent to prepare a to-be-detected solution; and sequentially adding the metal sol and the inorganic salt flocculant into the to-be-detected solution, uniformly mixing, and detecting by using a Raman spectrometer. The detection method provided by the invention has the advantages of high sensitivity, low detection limit and low cost, and can realize rapid detection of non-pralazone illegally added in food.

The utility model discloses a fan rotating speed sensor, which belongs to the field of rotating speed sensors, solves the problem that the existing rotating speed sensor cannot measure the speed of an assembled fan, and comprises a detection seat, a protective shell, a conduction rod and a linkage rod, the protective shell is fixedly arranged on one side of the surface of the detection seat, and the transmission rod is arranged on the other side of the surface of the detection seat. The counting mechanism and the zeroing mechanism are arranged, so that the number of turns of rotation of the conduction rod can be automatically calculated, then the specific number of turns is displayed, and under the condition that data such as materials, fan blade shapes and positions are synchronous, the number of turns of rotation of the conduction rod can be automatically calculated. The rotating speed of the fan can be detected only by rotating the counting mechanism, so that the equipment can detect the rotating speed of the assembled fan, the overall detection steps are simplified, the number in the counting mechanism can be returned to zero subsequently, and the equipment can be reused conveniently.

The present invention belongs to the technical field of soil pollutant detection and environmental governance, and discloses a detection method and application of cadmium / arsenic and microplastic composite contaminated soil. The detection method is first based on known detection or experimental data, and analyzes the combined toxicity effect of in-situ exposure and cultivation of earthworms in composite contaminated soil formed by different cadmium / arsenic and microplastics in different occurrence scale ranges, and the concentration of cadmium / arsenic in the soil, the main distribution characteristics of microplastics and the occurrence scale range, the main distribution characteristics and concentration of cadmium / arsenic at the level of earthworm organs, and the corresponding relationship between the six elements. Then, according to the corresponding relationship, the composite contaminated soil to be tested is tested, and a group of six elements can be directly obtained by substituting part of the detection data into the detection data, without physically separating and separately detecting the microplastics in the soil. The present invention can be widely used in technical fields such as environmental pollutant detection and ecological environment governance.

The utility model discloses a two-way measuring caliper which comprises a supporting rod and shells symmetrically arranged at the two ends of the supporting rod, push-pull rods, opening mechanisms and displacement sensors are arranged in the two shells, the opening mechanisms provide pushing force for the push-pull rods at the two ends to get close to each other, the two-way measuring caliper further comprises a plurality of sets of supporting arms arranged on the periphery of the supporting rod, and every two sets of supporting arms form one set. The outer ends of the two supporting arms in the same group are hinged to one sides of the inner ends of the two shells respectively, the inner ends of the two supporting arms are hinged and provided with rolling wheels, the inner wall of a well to be measured can push the rolling wheels to be close to the supporting rods so as to push the push-pull rods at the two ends to be away from each other, and the displacement sensors are used for detecting displacement data of the corresponding push-pull rods. By arranging the structure with the two symmetrical ends, the caliper can measure the diameter of a to-be-measured well in the process of going up to the well or going down to the well, and compared with a traditional caliper which can only measure the diameter in one direction, the working efficiency is improved, and the detection steps are simplified.

The invention discloses a light energy uniformity detection method and system and exposure equipment, and relates to the technical field of light energy detection, and the system comprises a light ray projection unit which is used for changing a laser light path emitted by a laser module and forming a light spot with a proper size; the photoelectric energy sensor is used for receiving the light spots and carrying out energy detection; the motion detection unit is used for driving the photoelectric energy sensor to move in the plane of the exposure machine platform; the main control computer is used for controlling the motion detection unit to move, so that the windowing center of the photoelectric energy sensor coincides with the light spot center; and the processor is also used for carrying out data processing on the energy detection information and determining whether the energy uniformity of the laser light path reaches the standard or not. According to the system, the accurate moving distance required by the motion detection unit can be obtained, the situation of energy loss caused by the fact that a light path projection light spot does not completely fall into an open window of the photoelectric energy sensor is avoided, and the uniformity detection result is more accurate.

The invention belongs to the technical field of isotope abundance detection, and discloses a method for determining CO stable isotope abundance percentage content. According to the method, detection parameters of the gas isotope mass spectrometer are set, a sample introduction pipeline of the gas isotope mass spectrometer is vacuumized, and then CO gas is introduced into the gas isotope mass spectrometer through the sample introduction pipeline for detection; and calculating the CO stable isotope abundance percentage content according to a detection result. According to the method, the gas isotope mass spectrometer is adopted to detect the < 13 > C isotope abundance in the < 13 > CO and < 12 > CO mixed gas, the sensitivity, the accuracy and the repeatability of a detection result are high through accurate control of the vacuum degree of a pipeline before detection and careful adjustment of detection conditions in the detection process, the detection steps are simple and rapid, the cost is low, and the method is suitable for industrial production. A foundation is laid for optimization of a 12CO and 13CO isotope separation technology, and meanwhile, powerful support is provided for scientific research and related research in the industrial field.

The self-adaptive photovoltaic module machining tool comprises a base, an inner gear ring and a driving mechanism, a mounting box is horizontally arranged at the top of the base, moving plates are arranged at the two ends of one side of the mounting box, clamping pieces are arranged on the opposite sides of the two moving plates, telescopic structures are arranged between the moving plates and the clamping pieces, and the inner gear ring is arranged on the inner gear ring. Supporting plates are vertically welded to the two sides of the bottom of the inner gear ring correspondingly, an electric telescopic rod is horizontally and fixedly installed at one corner of the top of the base, the telescopic end of the electric telescopic rod is fixedly connected with the side face of one supporting plate, and the driving mechanism is used for driving the two clamping pieces to move synchronously and driving the mounting box to rotate. The upper and lower surfaces of the photovoltaic module can be detected at one time, the photovoltaic module does not need to be repeatedly loosened, overturned and fixed, manual participation is not needed in the whole process, time and labor are saved, the automation degree is high, the detection steps are simple and convenient, and the detection efficiency is improved.

The invention belongs to the technical field of environmental pollution detection, and discloses a method and a system for detecting multiphase chlorinated hydrocarbon pollutants in soil and underground water, the method comprises the following protective cover: S1, arranging a multiphase chlorinated hydrocarbon pollutant concentration detection experiment device; s2, constructing a multiphase detection data analysis model; s3, carrying out a multiphase detection experiment; s4, detecting an actual sample; the system comprises a cloud server, a management terminal and at least one set of multiphase chlorinated hydrocarbon pollutant concentration detection experiment device. By improving the multiphase chlorohydrocarbon pollutant concentration detection experimental device and constructing the multiphase detection data analysis model, synchronous detection of the multiphase occurrence concentration of chlorohydrocarbon in soil and groundwater environments can be realized, and the soil chlorohydrocarbon pollution level can be evaluated more comprehensively; the method can be widely applied to identification of potential risks of soil pollution and accurate prevention and control of soil chlorinated hydrocarbon pollution.

The application discloses a detection method for detecting drug amount based on solid phase microextraction and real-time analysis mass spectrum, which comprises the following steps: preparing a solid phase microextraction head by using a coating material, preparing a standard sample to form a standard curve solution, detecting the standard curve solution by solid phase microextraction and real-time direct analysis mass spectrum, obtaining a mass spectrum diagram of the standard curve solution, and then obtaining a standard curve equation of the standard curve solution; obtaining a peak area value of a to-be-detected sample by solid phase microextraction and real-time direct analysis mass spectrum, and substituting the peak area value into the standard curve equation to obtain the concentration of corresponding drugs. By setting the method process, the detection steps of the application are obviously simplified, the constant volume, detection and calculation operations can be carried out on site according to actual needs, the operation mode and operation site are flexible, and the beneficial effect of improving the detection efficiency can be achieved.

The invention relates to the technical field of grape fruit detection, in particular to a method for detecting endogenous smoky substances in grape fruits. The method comprises the following steps: carrying out solid-phase extraction on a pretreated sample to respectively obtain a free-state eluent and a glycoside-state eluent, carrying out gas chromatography-mass spectrometry detection on the free-state eluent, and carrying out liquid chromatography-mass spectrometry detection on the glycoside-state eluent to obtain a detection result. The method can be used for simultaneously carrying out qualitative and quantitative detection on free eugenol, glycoside eugenol, free eugenol and glycoside eugenol, and a multi-reaction monitoring and scanning method for eugenol, eugenol and glycoside precursors thereof is established on the basis of gas chromatography-mass spectrometry and liquid chromatography-mass spectrometry. The detection steps are simple and efficient, the cost is low, and a technical support is provided for concentration evaluation of eugenol / eugenol and its glucoside state in grape fruits.

The application discloses a probe card analyzer, and belongs to the field of semiconductor equipment, comprising a base, the base is provided with a turnover plate for mounting a probe card, the base is provided with a lifting mechanism for lifting the turnover plate and a rotating mechanism for rotating the turnover plate, the base is provided below the turnover plate with a detection mechanism, the detection mechanism comprises a sensor group for contacting the probe, the base is provided with an X-axis displacement mechanism, a Y-axis displacement mechanism and a Z-axis displacement mechanism for controlling the movement of the detection mechanism along a three-dimensional coordinate system, the detection mechanism is connected to the Z-axis displacement mechanism, the base is provided above the turnover plate with a first magnifying observation piece, and the base is provided with a position adjusting mechanism for sliding the first magnifying observation piece. The application has the effect of improving the detection efficiency of the probe.