28 results about "Rapid assay" patented technology

The application discloses a cherry freshness detection device based on volatile substance concentration proportion time sequence model, which comprises a handheld detection instrument main body and a sampling bottle. The detection instrument main body comprises a micro air pump, a micro air chamber and a micro processing unit. The micro processing unit is integrated with a data acquisition module, an algorithm module and a calculation detection module. The algorithm module is integrated with concentration proportion time sequence models of various volatile substances. The calculation detection module compares the concentration data of various volatile substances and the concentration proportion time sequence models to determine the picking time and freshness of cherries. Compared with the traditional method, the application has the advantages of rapid determination, and the single test time is 4 min. Compared with artificial and single alcohol detection instrument, the application uses multiple characteristic volatile substance contents as test objects, and has higher precision and repeatability.

The application relates to the technical field of intelligent agriculture and plant protection, and particularly discloses a broccoli black spot early diagnosis system and method based on multi-modal machine learning fusion, which comprises a portable collection platform, a mobile experiment terminal and a server. The portable collection platform is integrated with a hyperspectral imaging camera, a chlorophyll fluorescence imager, a dark-adapted leaf clamp and a camera for sample barcode recognition, and is provided with an adjustable height support and a controllable light source to ensure the consistency of data collection conditions. The mobile experiment terminal is internally provided with a physicochemical index rapid detection module, including a portable PCR instrument for on-site nucleic acid rapid extraction and amplification and a miniature ultraviolet spectrophotometer for rapid determination of pigment content. The broccoli black spot early diagnosis system and method based on multi-modal machine learning fusion are highly integrated, portable and automated, are suitable for a field environment and provide an efficient disease diagnosis tool for non-expert users.

The application discloses an automatic analyzer for detecting aniline compounds in liquid and a determination method, and realizes automatic and rapid determination of aniline compounds in liquid samples through the design, connection and control of flow paths and structures, and the analysis processes such as automatic sampling, reagent adding, mixing reaction and spectrophotometric detection, so that reagent consumption and waste liquid discharge are reduced, and the analysis detection sensitivity, accuracy and precision are improved.

The invention provides a method for detecting the content of zinc in a lithium-zinc binary alloy strip based on ICP-OES, and belongs to the technical field of metal material component analysis. According to the method, the lithium matrix is separated by adopting a nitric acid-perchloric acid digestion system, and the stock solution is diluted by 500 times, so that the concentration of the lithium matrix can be efficiently reduced, meanwhile, the signal inhibition effect is effectively eliminated by combining lithium salt matching, and the detection precision is greatly improved. According to the method, Zn 213.856 nm analysis spectral lines are carefully selected, RF power is optimized, spectral interference of other elements can be avoided, the linear range can be expanded, and the method is suitable for rapid determination of the zinc content of 1%-20%. According to the method, the detection limit can reach 0.01%, the relative standard deviation is smaller than or equal to 1.0%, the recovery rate is 98.5%-101.2%, and high-precision detection is achieved.

The invention provides a method and a system for automatically and rapidly measuring trace aluminum in cold water in a high-voltage direct-current converter valve. The system comprises a masking reagent bottle, a chromogenic reagent bottle, a buffer reagent bottle, a current-carrying reagent bottle, a water sample bottle, a flow injection analyzer, a multi-channel combination module, a first reaction coil, a second reaction coil, a third reaction coil, a temperature control module and a light splitting detector, the flow injection analyzer comprises a pump A, a pump B, a sampling valve and a sampling ring; the multi-channel combination module is provided with channels A, B and C which are not communicated with one another, and the channels A, B and C are respectively provided with sampling ports a, b and c; the sampling valve is provided with channels f, g, h and i which are not communicated with one another, and the channels f, g, h and i are provided with sampling ports d and e respectively. According to the method and the system provided by the invention, the trace aluminum ions in the cold water in the high-voltage direct-current converter valve can be automatically, quickly, accurately and reliably measured, and the detection limit is 1.0 mu g / L.

This application relates to the field of environmental monitoring and indoor air quality control technology, and particularly to a device, system, and method for rapidly determining the emission characteristics of semi-volatile organic compounds (SVCs). The device includes a test chamber and a test sample. The test chamber has a sandwich structure, during which the test sample is embedded, forming a cavity with the chamber. The main body of the test chamber is equipped with an air inlet, an air outlet, and a sampling port. Air is supplied to the cavity through the air inlet, and the airflow is discharged through the air outlet. This solves the problems of long steady-state times due to large adsorption areas in other test chambers, leading to long testing cycles, and large errors in emission characteristics due to convective mass transfer coefficient errors, when determining the emission characteristics of SVCs.

The present application relates to the field of fluid machinery, especially to a full-flow extreme power point rapid determination method and system for diesel engine fire pump set. According to the industry standard and pump set parameters, the method presets the reference parameters and solidifies the Q-N-H three-dimensional working condition mapping table to build a standardized test reference. Four test intervals are divided according to the flow, and exclusive control algorithm and safety protection logic are matched. After the equipment is preheated and stabilized, multi-source working condition data is collected through high-frequency sampling and time stamp calibration, and the real-time input power of the diesel engine is accurately calculated through sliding filter denoising, parameter normalization and multi-dimensional loss correction. Through the least square method five polynomial fitting P-Q characteristic curve, combined with the first and second derivative joint criterion, the only power maximum point in the effective flow interval is accurately calibrated. The method is accurate, fast and highly standardized, effectively improves the determination accuracy and efficiency of the extreme power point, and meets the combined rule detection requirements of the diesel engine fire pump set.

The invention belongs to the technical field of detection methods, and provides a method for rapidly determining the content of index components in formula granules, and the method comprises the following steps: detecting the content of the index components in formula granules to be detected by adopting a thin-layer scanning method, and calibrating the measured content of the index components; the calibration comprises the following steps: substituting the measured index component content as an independent variable into a linear regression equation to calculate a dependent variable, and taking the calculated dependent variable as the calibrated content; wherein the establishment mode of the linear regression equation comprises the following steps: carrying out linear regression by taking the content of the index component in the formula granules detected by a thin-layer scanning method as a horizontal coordinate and taking the content of the index component in the same formula granules detected by a high-performance liquid chromatography method as a vertical coordinate. According to the method, the content of the index components in the formula granules can be rapidly determined, the operation is simple and convenient, the result accuracy is high, and the method has a good application prospect.

The application provides a kind of geological sample low content Re fast and accurate analysis method, comprising: collecting sample to be determined and carrying out sample crushing;Weighing sample to be determined in plastic centrifuge tube;HCl, HNO3 and Re diluent are sequentially added to the plastic centrifuge tube;The plastic centrifuge tube is covered with a bottle cap and ultrasonic oscillation is carried out, the plastic centrifuge tube is placed in an oven at 105 DEG C to 110 DEG C and heated, and low-temperature sample dissolution is carried out;After heating is completed, the plastic centrifuge tube is placed in a centrifuge for centrifugation;The supernatant is diluted and then MC-ICP-MS is used for rapid determination of Re content.The method only uses low-cost plastic centrifuge tubes for sample dissolution, reduces the detection cost by 70% under the premise of ensuring the analysis accuracy;The Re content determination method only needs one day to complete the whole Re content process, significantly improving the single sample analysis efficiency;The Re content determination method is simple, short in determination period and cost-saving.

This invention proposes a method for rapid determination of the content of Phellodendron amurense charcoal slices processed at different temperatures using near-infrared spectroscopy. Near-infrared spectroscopy is used to collect spectral information of Phellodendron amurense charcoal slices processed at different temperatures. Background interference is eliminated through preprocessing methods such as baseline correction, standard normal variable transformation, multivariate scattering correction, and first derivative. Combined with competitive adaptive reweighted sampling, CARS combined with iterative retention of information variables, and iterative combination optimization, a partial least squares regression quantitative prediction model is established. This model achieves accurate prediction of the content of five key components: 5-O-FQA, 3-O-FQA, berberine, berberine, and berberine, with prediction correlation coefficients all exceeding 0.90. This invention combines spectral information with chemometric methods to establish a digital content prediction model based on near-infrared spectroscopy for online monitoring of the Phellodendron amurense charcoal slice processing process. It has the advantages of objectivity, speed, non-destructive nature, and reliability, effectively solving the technical problem of lack of objectivity in existing technologies based on human judgment.

1. Name of the product in this design: Rapid moisture analyzer for grains and oils. 2. Purpose of this design: For the determination of moisture content in grains and oilseeds. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The present disclosure provides a device for testing an analyte in a fluid sample and a receiving device for treating the fluid sample, wherein the receiving device is used for receiving an absorbing element; the receiving device comprises a accommodating chamber and the chamber comprises a piercing element that is movable in the chamber, wherein the piercing element has a first position and a second position in the accommodating chamber, and configured to pierce the first sealed chamber; the accommodating chamber comprises a treatment solution for treating a fluid sample. The assay device and receiving device of the present disclosure treats a sample and quickly obtain the assay result, which is especially suitable for quick assay of a roadside drug.

The invention relates to the technical field of ink testing, in particular to a method for rapidly measuring the stability of ink, which comprises the following steps: performing temperature gradient centrifugal treatment on the ink to be measured, namely centrifuging for 1-10 hours at 2000-6000 rpm in a continuously changing temperature field of-10 DEG C to 60 DEG C, and measuring the stability of the ink by adopting a low-field nuclear magnetic resonance and multi-heavy light scattering combined technology. S2, synchronously analyzing the ink sample treated in the step S1, respectively obtaining a water molecule relaxation time spectrum and a back scattering light intensity space distribution curve, comparing parameters obtained in the step S2 with a standard ink database subjected to same treatment, and judging the long-term stability of the ink to be detected through a preset threshold value. Through physical intervention means such as temperature centrifugation and multi-section circulation temperature change, the test period is compressed to be completed within several days and even several hours, the research and development verification period is greatly shortened, and especially for ink product development scenes needing frequent formula adjustment, the technical iteration speed can be directly increased.

This invention discloses a method for in-situ simultaneous and rapid determination of odor and greenhouse gases, belonging to the field of environmental monitoring technology. The method includes: acquiring multiple channels of target gases and simultaneously preprocessing them to generate homogeneous gas samples; using a main detection sensor group and an auxiliary compensation sensor group for parallel collaborative sensing processing to obtain current multi-source sensor data; establishing a dynamic compensation mapping model to characterize the measurement error of gas concentration; inputting the current multi-source sensor data and corresponding current environmental parameters into the dynamic compensation mapping model for calculation, and combining it with the current main detection raw reading to generate current target gas concentration data; associating and packaging multiple sets of current target gas concentration data to generate a synchronous data package and outputting it. By combining the collaborative sensing processing of main and auxiliary sensors with the dynamic compensation mapping model, the method can achieve simultaneous and accurate determination of odor and greenhouse gas concentrations under complex backgrounds.

The application relates to the technical field of coal mine safety, in particular to a device and method for rapidly determining the gas content of a coal seam, which comprises a base, the base is provided with a sample cabin for containing a coal sample, the sample cabin is provided with a sealed cabin door, the sample cabin is provided with a resolution acceleration structure for accelerating the resolution rate of gas in the coal sample, the resolution acceleration structure comprises a coal sample crushing structure, the sample cabin is connected with a vacuum pump and a negative pressure bottle, the sample cabin, the negative pressure bottle and the vacuum pump are sequentially communicated, a first valve is arranged between the negative pressure bottle and the sample cabin, a second valve is arranged between the negative pressure bottle and the vacuum pump, the sample cabin is provided with a first air pressure sensor for monitoring the air pressure change in the sample cabin, the negative pressure bottle is provided with a second air pressure sensor for monitoring the air pressure change in the negative pressure bottle, and the base is connected with a control structure for controlling the first valve, the second valve and the resolution acceleration structure, so that the rapid and accurate determination of the gas content of the coal seam is realized.

The invention discloses a method, a device, equipment, a medium and a product for rapidly measuring chemical properties of larch wood, and relates to the field of forestry science and spectral analysis, the method comprises the following steps: collecting a near infrared spectrum of a larch sample in a preset wavelength range, and sequentially selecting an effective modeling spectrum region and pre-treating; determining the lignin content, the alpha-cellulose content and the holocellulose content of the larch sample as reference values; constructing a training set and a prediction set; establishing a near infrared spectrum prediction model of lignin, alpha-cellulose and holocellulose; verifying the prediction precision of the near infrared spectrum prediction model of lignin, alpha-cellulose and holocellulose by using the prediction set; inputting a larch sample to be detected into the model which is verified to be effective, and outputting the predicted content of lignin, alpha-cellulose or holocellulose. The method realizes nondestructive, rapid and high-precision detection of main chemical components of larch wood, and is suitable for forest tree genetic breeding and wood quality evaluation.

The invention discloses a fluorescent probe, preparation thereof and application of the fluorescent probe in detection of glyphosate in water. The fluorescent probe provided by the invention is constructed by self-assembling symmetric tetramethyl cucurbit [6] uril and guest molecules E as raw materials. The fluorescent probe is a novel self-assembly body, is simple in preparation method, can be used for qualitatively or quantitatively detecting glyphosate in water, and has the characteristics of high sensitivity, high selectivity, low cost, simplicity in sample treatment, convenience in operation and rapidness in determination.

This invention relates to the field of rubber performance testing technology, and particularly to a method and system for rapid determination of rubber crosslinking density and segment molecular weight based on dynamic mechanical analysis. The procedure is as follows: sample drying and cutting; determining the linear viscoelastic region at 1 Hz; heating at 3 ℃ / min, isolating at a high-elasticity plateau of 90±2 ℃ and recording E′ using steady-state criteria; performing a single 5–10% large strain pretreatment or Kraus correction to subtract filler stiffness for the filled system; calculating and outputting quality control conclusions based on G′=E′ / 3, Ve=G′ / (RT), and Me=ρ / Ve. This method can be completed within 30 minutes, requires no organic solvents, and is applicable to NR, SBR, BR, EPDM and their blends. It shows good consistency with the swelling method and is suitable for rapid laboratory screening and near-line quality control in production.

The utility model relates to a device for rapidly measuring and comparing the flowability of powder, which is characterized in that a table board is fixed on a support, a vibrating device is arranged below the table board, scale marks consisting of a plurality of concentric circles are engraved on the surface of the table board, a sample containing tube is arranged on the surface of the table board, and the sample containing tube consists of a tube wall and a wafer at the bottom; a groove is formed in the center of the table top; the bearing is embedded into the groove and fixed with the groove; a connecting shaft is arranged in the center of the sample containing pipe, penetrates through the wafer and is hermetically fixed with the wafer, and the bottom end of the connecting shaft penetrates out of the table top; the fixing ring is fixed to the bottom end of the table top through connecting pieces on the two sides. The sample containing pipe with the pipe wall capable of being opened in a rotating mode is designed, the device naturally falls under the action of gravity, the initial speed is consistent and closest to zero, stable repeatability is guaranteed, and the accuracy of powder fluidity measurement is greatly improved. The device is simple, high in operability and low in manufacturing cost.

The invention belongs to detection equipment, and particularly discloses a rapid chlorine ion content determinator based on quantum dot fluorescence detection, the rapid chlorine ion content determinator based on quantum dot fluorescence detection comprises an equipment body, the equipment body is fixedly connected with a connecting line, the connecting line is fixedly connected with an electrode, and the rapid chlorine ion content determinator is used for determining chlorine ions; the protective sleeve is arranged outside the electrode, and a protective block is arranged at one end, close to the connecting line, of the protective sleeve and the electrode. Through the action of the protective sleeve, the protective block and the adjusting assembly, the outer side of the electrode can be protected, the electrode protection stability of the protective block and the protective sleeve is improved, and the situation that the electrode is bent and deformed due to the external force such as extrusion and collision is prevented; meanwhile, moisture on an electrode film on an electrode in the protective sleeve is supplemented through a water outlet structure, and the situation that the electrode film is dry and loses water, the service life of the electrode is affected, and use is inconvenient is prevented.

The present application belongs to the technical field of coal reservoir gas pressure measurement, and discloses a coal reservoir pore gas pressure rapid measurement method and system. The system comprises a sampling site automatic desorption module, a dead volume calibration module, a gas loss amount reduction module, a coal sample volume reduction module and a control system. The coal sample tank is a piston container, which is divided into a coal sample cavity and a pressurizing cavity. The dead volume calibration module calibrates the system empty volume, and the gas loss amount reduction module realizes automatic compensation of multiple components. The coal sample volume reduction module injects oil to compact the shaft and restore the pore volume. The measurement method comprises the following steps: downhole coal sample sampling, automatic measurement and conversion of loss amount, system access and vacuum pumping, dead volume calibration, automatic compensation of gas loss amount, coal sample compaction and pore volume restoration, reading of pressure value after adsorption equilibrium, etc. The present application realizes rapid, efficient, accurate and safe measurement of coal seam gas pressure under the condition of free hole sealing, effectively improves the gas pressure measurement efficiency and data reliability.

This invention relates to the fields of chemistry, chemical engineering, and environmental technology, specifically to a system and method for rapidly determining the solubility of liquids. The system includes: a first liquid delivery unit, a second liquid delivery unit, a mixing unit, and a differential pressure measurement unit, as well as a thermostatic device and a back pressure valve. This system can significantly shorten the solubility determination time, is applicable to different liquid systems and various temperatures and pressures, is simple to operate, requires no special precision equipment, is low in cost, and is easy to industrialize. The method for rapidly determining the solubility of liquids using this system is a novel method. This method is based on the technical principle of differential pressure measurement of fluid properties and has the advantages of flexible pressure range control, wide temperature adaptability, and strong versatility.

The invention relates to the technical field of conductive carbon black performance testing, in particular to a conductive carbon black particle size distribution rapid determination method, which comprises the following steps: S1, sample pretreatment: mixing a dried conductive carbon black sample with absolute ethyl alcohol according to a preset mass volume ratio to form an initial suspension; s2, ultrasonic dispersion: performing ultrasonic treatment on the initial suspension to obtain a uniformly dispersed sample suspension; s3, instrument preparation: absolute ethyl alcohol is injected into a cyclic measurement system of the laser particle analyzer as a dispersion medium, background calibration is carried out, and the transmittance of the system is stabilized at a set value; and S4, carrying out concentration adaptation and measurement. Through a standardized operation process, a unified medium system, real-time concentration adaptive control based on double-light-source transmittance feedback and strict system cleaning steps, high consistency and stability of measurement results among different operators and different batches are jointly ensured, so that the method has better repeatability and stability.

The invention discloses a rapid determination device and method for coal ash content, and relates to the technical field of coal quality detection, the device comprises: a pressure-resistant chamber for accommodating a sample; the precise weighing device is arranged in the pressure-resistant chamber and is used for collecting the mass of a sample; the gas path system consists of a gas cylinder, a pressure reducing valve and a gas mass flow controller; the temperature sensor and the pressure sensor are arranged in the pressure-resistant chamber and are used for acquiring the temperature and the pressure in the pressure-resistant chamber; and a safety relief valve, a data processing unit and a man-machine interaction unit. The working principle is as follows: on the basis of an ideal gas state equation, the volume of a coal sample is inversely calculated by comparing the pressure and temperature differences of a no-load chamber and a chamber after the coal sample is put under the condition of filling gas with the same mass, and the density is obtained by combining the mass of the coal sample; and finally, in-situ nondestructive, high-aging, safe and low-cost ash content detection is realized through the data processing unit.

The invention relates to the technical field of coal mine safety and gas determination, in particular to an integrated dual-mode coal seam gas content rapid determination device, which comprises a sampling container, a gas detection device, a gas detection device and a gas detection device, and is characterized in that the sampling container is used for placing a to-be-determined coal seam sample; the coal seam crushing unit is used for crushing coal seam samples; the flow detection unit is used for obtaining the desorption flow of the coal seam sample; the pressure method measuring unit is used for measuring the gas desorption amount of the coal seam sample through a pressure method; the flow method measuring unit is used for measuring the gas desorption amount of the coal seam sample through a flow method; the dual-mode collaborative switching unit is used for respectively measuring the gas direct desorption amount and the gas crushing desorption amount before and after the coal seam sample is crushed; and the gas content calculation unit is used for calculating the gas content value of the coal seam sample by combining the gas compensation amount generated by an intelligent compensation algorithm based on the gas direct desorption amount and the gas crushing desorption amount. The accuracy and reliability of coal seam gas content measurement can be improved.

The invention belongs to the technical field of uranium ore geology, and particularly relates to a method for rapidly determining the type of organic matters in uranium ore based on a nuclear magnetic resonance method, which comprises the following steps: collecting a uranium ore sample in the field; cutting the collected sample into a cylinder with a standard size as a to-be-detected sample, and placing the to-be-detected sample in a sample tube; selecting a probe according to the size of the to-be-detected sample, detecting the standard sample, and recording the signal and quality of the standard sample; placing the sample tube into a main body static magnetic field detection area which is qualified through self-inspection, selecting a pulse sequence, setting test parameters, and collecting signal data of a to-be-detected sample in the sample tube; performing inversion on the collected signal data of the to-be-detected sample in the sample tube to generate a two-dimensional relaxation spectrogram; according to different hydrogen-containing components in the two-dimensional relaxation spectrogram, identifying different types of organic matters; and calibrating the signal inversion result of the to-be-detected sample by adopting the standard sample, and calculating the hydrogen-containing component content of different types of organic matters. The method realizes nondestructive and rapid determination of the type and content of the organic matters in the uranium ore.

The invention discloses a peucedanum praeruptorum dunn medicinal material quality analysis method based on a near-infrared technology, and belongs to the field of medicinal material quality analysis methods. The method comprises the following steps: collecting near infrared spectrum data of a radix peucedani medicinal material sample; preprocessing the near infrared spectrum data, and modeling by adopting one algorithm of a random forest, a back propagation neural network and partial least square analysis to respectively obtain quantitative analysis models capable of measuring at least one effective component in the content of praeruptorin A, the content of praeruptorin B and the content of praeruptorin C; obtaining the content of effective components in the radix peucedani medicinal material sample based on the model, and analyzing the quality of the radix peucedani medicinal material. According to the present invention, the near infrared technology is combined with the chemometrics to achieve the rapid determination of the three active components such as the praeruptorin A, the praeruptorin B and the praeruptorin C in the peucedanum praeruptorum dunn medicinal material; the sample preparation process is convenient, the sample is lossless, no chemical reagent pollution risk exists, and the result is accurate.

The invention provides a coal seam gas content rapid determination system and method.The coal seam gas content rapid determination system comprises a handheld mobile device, a double-channel coal seam gas content rapid determination instrument and two automatic control pneumatic crushing devices, and the handheld mobile device, the double-channel coal seam gas content rapid determination instrument and the two automatic control pneumatic crushing devices are in communication connection through Bluetooth. The pneumatic crushing device is automatically controlled to realize automatic crushing of a coal sample, the double-channel tester synchronously acquires instantaneous and accumulated desorption amount data of gas through the double gas flow sensors, and the handheld mobile equipment receives the data, analyzes and calculates the data, and generates and exports a test report. The double-coal-sample parallel test is realized, the measurement efficiency and the data credibility are improved, the operation is convenient and fast, and the underground operation requirements are met.