157results about How to "Quick Qualification" patented technology

The invention discloses a system for predicting geologic hazard based on rainfall intensity, moisture content of slope soil and deformation. The system comprises an automatic rainfall gauge, a soil moisture sensor, an omnibearing tilt sensor, an omnibearing vision sensor, an embedded system and a monitoring center computer, wherein the automatic rainfall gauge is used for monitoring rainfall and rainfall intensity of a geologic hazard point; the soil moisture sensor is used for monitoring moisture in soil at the geologic hazard point; the omnibearing tilt sensor is used for detecting earth surface deformation and internal deformation of the geologic hazard point; the omnibearing vision sensor is used for evaluating geologic hazard scale; the embedded system is used for wirelessly transmitting video and monitoring data; and the monitoring center computer is used for predicting and forecasting the geologic hazard and comprises a communication module, a data receiving module, a rainfall and rainfall intensity-based geologic hazard prediction module, a slope displacement-time curve-based geologic hazard prediction module, a soil moisture, rainfall and rainfall intensity-based geologichazard prediction module and a soil moisture content and slope deformation-based geologic hazard prediction module. The system has the advantages of complete monitoring means, accurate prediction andforecast, high intelligence and on-line real time.

The invention belongs to the technical field of organic pollutant detection, and particularly relates to a method for quickly, qualitatively and quantitatively detecting polycyclic aromatic hydrocarbon and substitute thereof by using surface enhanced Raman technology. The method comprises the following steps of: dissolving the polycyclic aromatic hydrocarbon and the substitute thereof into an organic solvent; mixing gold sol and mercapto substituted cyclodextrin to form surface enhanced substrate solution; mixing the solution of the polycyclic aromatic hydrocarbon and the substitute thereof and the surface enhanced substrate solution with equal volume, centrifuging the mixed solution, and then diluting the solution to the original volume by using water; and dripping the solution to be detected on a glass sheet, drying the solution under room temperature condition, and then performing Raman detection to obtain Raman spectrums of the polycyclic aromatic hydrocarbon and the substitute thereof to be detected so as to realize quick, qualitative and quantitative detection of the polycyclic aromatic hydrocarbon and the substitute thereof. The detection method has the characteristics of simple and quick operation and high sensitivity, has great application potential on the detection aspect of the polycyclic aromatic hydrocarbon and the substitute thereof, and can provide a new detection means for the polycyclic aromatic hydrocarbon and the substitute thereof.

The invention relates to a method to testing formaldehyde rapidly that uses water or formaldehyde developer as liquid extract, taking extract to the releasing material from the tested sample lasting for at least 3 minutes, and the microwave frequency range is 1GHz-30GHz. Adding formaldehyde developer into the extract liquid of tested sample, mixing to equal, heating the extract liquid and observing the alteration of the color to take qualitative analysis whether the liquid contains formaldehyde and determining whether the sample contains formaldehyde. By comparing the color of the liquid with standard color, the content of the sample would be measured. The invention has short testing time, low const and would be used in and locale.'

The invention provides a rare earth metal europium-based organic crystalline material, and preparation and application thereof, belonging to the technical field of crystalline materials. The chemical molecular formula of the rare earth metal europium-based organic crystalline material is {[Eu(TATAB)(H2O)2].NMP.H2O}n, wherein n refers to positive infinity and TATAB represents 4,4',4''-s-triazine-1,3,5-tri-m-aminobenzoic acid. A basic unit of a metal frame structure comprises a crystallographically independent Eu<3+> ion and a TATAB ligand; Eu<3+> ions are connected through six oxygen atoms on three TATAB ligands so as to form a double-core basic unit [Eu2(CO2)3]; and double-core basic units are connected via the ligands so as to form a two-dimensional layered network framework. The invention has the advantages that the metal-organic framework material is simple to synthesize and high in crystal purity; the material has a novel structure and has high stability in an organic solvent; and the material can identify iron ions Fe<2+> and Fe<3+> at the same time.

The invention discloses a method for detecting monocyclic aromatic pollutants in engine tail gas. The method comprises the following steps: collecting tail gas to be detected by using an engine tail gas sampling unit, and putting the active-carbon tail gas to be detected in a test tube as the sample; adding dichloromethane into the sample, putting the test tube in an ultrasonic extractor to carry out ultrasonic extraction, filtering the extract liquor, evaporating and setting to the marked volume to concentrate the extract liquor, and preserving at low temperature; carrying out chromatographic analysis on the extract liquor preserved at low temperature; and carrying out linear regression by using the concentration of monocyclic aromatics as the horizontal ordinate and the peak area as the vertical coordinate to calculate a standard operation curvilinear equation, substituting the chromatographic result into a standard operation curvilinear equation, and calculating the concentration of monocyclic aromatics in the sample. The invention can quickly and accurately carry out qualitative and quantitative analysis on monocyclic aromatics and has the advantages of high sensitivity and selectivity and good reproducibility; and the relative standard deviation does not exceed 6.5%, the detection limit is 0.003-0.009 mg / m3, and the recovery rate is 87.5-95.2%.

The invention relates to a method of detecting aflatoxin and pesticide residues in a peanut, in particular to a method of determining aflatoxin and pesticide residues in a peanut by ultra performanceliquid chromatography-quadrupole / high resolution mass spectrometry, which belongs to the field of analytical chemistry. A method of determining four kinds of aflatoxin and eleven kinds of pesticide residues in a peanut by ultra performance liquid chromatography-quadrupole / high resolution mass spectrometry adopts high performance liquid chromatography-quadrupole-electrostatic field orbitrap high resolution mass spectrometry to determine aflatoxin and pesticide residues in a peanut, a sample is extracted through an acetic acid-acetonitrile-water extract and is purified through a PSA and C18 silica gel mixed system, an aqueous solution containing 0.1% of formic acid and methanol are used in a positive ion mode to perform gradient elution on a mobile phase, and high resolution mass spectrometry qualitative and quantitative detection is carried out. The method is accurate, efficient and reproducible, and can simultaneously determine four kinds of aflatoxin and eleven kinds of pesticide residues in a peanut.

The invention discloses a quick classification and identification method for Ganpu tea (orange pu-erh tea). The method comprises the following steps of measuring characteristic volatile organic compounds in different standard samples by using a gas-phase ion migration analysis method, to acquire response strength data of flavor compounds of different types of standard samples; clustering the response strength data of the standard samples by using a statistical analysis method, and building a classification and identification model; measuring the characteristic volatile organic compound in an unknown sample by using the gas-phase ion migration analysis method having the same parameter with the previous step, thus acquiring a sample fingerprint spectrum, and putting the sample fingerprint spectrum into the classification and identification model acquired in the previous step for analysis, so as to judge the category and authenticity of the sample. According to the method provided by theinvention, the flavor quality is quantified and standardized, and the classification and identification model is built, so that the Ganpu tea can be quickly, objectively and accurately assessed, the standardization of the quality of the Ganpu tea can be effectively ensured, the product quality and market competitiveness can be improved, and the blank that sensory analysis cannot be accurate and standard is filled.

The invention belongs to the detection technical fields of feed science and feed additives, and more specifically relates to a rapid qualification and quantitation measurement method of saccharomyces cerevisiae in an additive premix sample. According the invention, cDNA gradient dilution is taken as an external standard substance used for distinguishing dead bacteria and live bacteria for accurately detecting the amount of the live bacteria in a sample to be measured. The invention is capable of measuring saccharomyces cerevisiae in premix sample with simple, rapid and accurate qualification and quantitation without pure culture of saacharomyces cereisiae, the whole process has the advantages of simple detection process, high detection efficiency, high accuracy and short detection period; and the invention provides a guarantee a long term development for a microecological preparation industry.

The invention provides a novel color-developing agent luminosity analytical method for measuring hydrogen cyanide content in mainstream smoke quickly, which comprises the following steps of: pretreating a sample in which hydrogen cyanide in the mainstream smoke is collected, adding a color-developing agent, and quantifying by a luminosity analytical method, wherein the color-developing agent is 4-nitrobenzaldehyde and o-dinitrobenzene; preparing potassium cyanide (KCN) solution which is added with the color-developing agent and has different concentrations to make a standard curve; and quantifying the standard curve by an external standard method, adding the color-developing agent in a cigarette absorption liquid sample, and performing photometry detection at wavelength 533 nm by an ultraviolet spectrophotometer. In the method adopting the color-developing agent containing 4-nitrobenzaldehyde-o-dinitrobenzene, the selectivity and sensitivity are high, a reaction is completed instantaneously and the interference resistant capacity is high. In addition, the method is simple in operation, cigarette sidestream smoke can be detected, the HCN in smoke environment also can be analyzed qualitatively and semiquantitatively, and the method is also suitable for field detection.

The invention discloses Novel Ebola virus fluorescent quantitative PCR (Polymerase Chain Reaction) detection method and system, wherein the detection system comprises a primer, a probe, a Premix EX Taq reaction solution and sterilizing Tris water. As the primer and the probe has good detection specificity, the detection system has high sensitivity and is suitable for detecting Ebola viruses without having cross reaction with Marburg viruses.

The invention provides a method for quickly detecting biogenic amine, which comprises the following steps: performing derivatization on a biogenic amine standard sample and a to-be-tested sample by derivating agent and then providing a chromophoric group, applying the sample on a chromatography material polyamide thin film, unfolding by using a developer, stopping chromatography when the front edge of the developer is 0.5 to 1 cm far away from the top of a thin film, developing, and observing the developing results. According to the invention, the polyamide thin film is used as chromatography detecting material for biogenic amine, the material is easy to obtain, the unfolding is quick, an unfolded thin layer plate can be preserved for a long time for recheck, and the quantitative estimation can be performed by using a thin layer scanner; through utilizing the developer with appropriate proportion, a target object and other components can be separated completely. Therefore, the method provided by the invention can be used for quick determination and semiquantitative detection of biogenic amine, and by using the method, the results can be obtained in the whole-process of 1 hour, and the instrument analysis requires longer time.

The invention relates to a method for determining the content of hydrocarbons and oxygen-containing compounds in Fischer-Tropsch synthetic oil. The method comprises the following steps: separating theFischer-Tropsch synthetic oil through a solid-phase extraction method to obtain a hydrocarbon mixed component and an oxygen-containing compound mixed component; carrying out gas chromatography-massspectrometry analysis, determining a reference component in an obtained spectrogram, calculating a retention index of each peak, determining hydrocarbons or oxygen-containing compounds corresponding to each peak according to the retention indexes and a compound qualitative database, and obtaining the content of each hydrocarbon or oxygen-containing compound according to the peak area. Compared with the prior art, according to the invention, the method has the advantages that rapid separation of hydrocarbons and oxygen-containing compounds in the Fischer-Tropsch synthetic oil is realized through a solid phase extraction method, mutual interference of hydrocarbons and oxygen-containing compounds in the Fischer-Tropsch synthetic oil in retention time is effectively eliminated through GC-MS, and rapid qualitative and quantitative analysis of each component is realized in combination with qualitative advantages of GC-MS and a simple data processing algorithm.

The invention discloses a detection method of free and combined carboxy methyl lysine in milk and dairy products. According to the detection method, isotope dilution high performance liquid chromatography- tandem ion trap mass spectrometry is adopted to detect free carboxy methyl lysine and carboxy methyl lysine combined with protein in milk and dairy products. According to the detection method, using of ion-pairing agent is avoided; no derivatization pretreatment is needed; efficiency, accuracy, sensitivity, and reproducibility are high; linearity range is wide; the detection method possesses unique features in analysis of the content of free carboxy methyl lysine and carboxy methyl lysine combined with protein in milk and dairy products, can be used for rapid and accurate qualitative and quantitative analysis on free carboxy methyl lysine and carboxy methyl lysine combined with protein in milk and dairy products, and can be used for detection of free and combined carboxy methyl lysine in milk and dairy products preferably.

The invention provides a method for rapidly detecting the contents of amaranthus red and brilliant blue in foods. The method comprises the following steps of: respectively taking an amaranthus red standard solution, a brilliant blue pigment standard solution and 0.3mL of ion liquid into a colorimetric tube; diluting and making up to volume being 10mL; determining the absorbance of the amaranthus red and brilliant blue pigment standard solutions on a 522nm place and a 630nm place by utilizing an ultraviolet and visible spectrophotometer, and making working curves to obtain equations of linear regression; filtering a liquid food sample or solid food sample dissolving solution and extracting by an ion liquid double-water-phase system formed by 1-butyl-3-methylimidazole bromide and K2PHO4; diluting an ion liquid phase to a constant volume and determining the absorbance of the system; respectively calculating to obtain the contents of the amaranthus red and the brilliant blue in the foods according to the equations of linear regression. The method disclosed by the invention is easy to operate and does not need to use a plurality of volatile solvents; the separation time is short and an instrument is common and easy to obtain; the method disclosed by the invention can be used for performing rapid, convenient, environment-friendly and economical qualitative and quantitative determination for quality inspection departments and manufacturing enterprises.

The invention belongs to the field of food detection, and particularly relates to a method for efficiently identifying differential small molecular substances in yellowed and normal unhusked rice. Themethod comprises the following steps that 1) an automatic headspace sample introduction unit is utilized, and a gas environment is balanced by increasing the temperature, so that flavor substances ina to-be-detected object are effectively volatilized; 2) gas chromatography-ion mobility spectrometry is used for detecting the volatile substances; and 3) GCXIMS Library Search software is utilized,and the substances can be subjected to qualitative analysis by applying an NIST database and an IMS database built in the software. According to the method, the advanced GC-IMS technology is used forcarrying out extraction detection and qualitative analysis on volatile components in the yellowed unhusked rice. Research results show that the method disclosed by the invention can be used for rapidly analyzing the volatile substances in the yellowed and normal unhusked rice through the GC-IMS technology.

The invention provides a time resolution fluorescent biosensor based on a phosphorescent light emitting technology and an application thereof. The time resolution fluorescent biosensor based on the phosphorescent light emitting technology comprises an exciting light path module, a photoelectric signal receiving and converting module, a control system module, an amplifying and shaping circuit, a coding interface circuit and a data cache module. The exciting light path module comprises a main detection exciting light module and an auxiliary optical scanning module. The photoelectric signal receiving and converting module comprises a main detection photoelectric conversion module and an auxiliary scanning photoelectric conversion module. According to the invention, a phosphorescent light emitting material (platinum / palladium porphyrin) is used as a biological marker, and the result is represented in form of an infrared optical signal under green light irradiation and can be interpreted by an instrument so as to quantitively detect a target object to be detected. According to the invention, a chromatographic test strip is divided into a sandwich method mode, a competition law mode, an indirect method mode and a capturing method mode to qualitatively and quantitively detect and analyze different objects to be detected in a sample quickly and sensitively according to different immunoreactions of the objects to be detected.

The invention discloses a corn kernel kumonisins rapid determination method belonging to the technical fields of analysis and detection. The corn kernel kumonisins rapid determination method includes the following steps: (1) corn kernel kumonisins extraction; (2) extract purification; and (3) corn kernel kumonisins analysis and detection. Through the corn kernel kumonisins rapid determination method, corn kumonisins can be more rapidly and more fully extracted, the content of fumonisins can be more accurately measured, and the corn kernel kumonisins rapid determination method has great significance to improve the quality safety of corn.

The invention provides a method and a system for recognizing Tibetan population individuals on the Qinghai-Tibet Plateau of China from 27 colonies. The method comprises the following steps: extracting DNA (Deoxyribonucleic Acid) of an individual; acquiring genotypes of 87 Tibetan specific altitude acclimatization SNP (Single Nucleotide Polymorphism) sites of DNA; acquiring a colony genetic constitution analysis result of the individual from the genotypes of the specific sites by using STRUCTURE software, and determining whether the individual is a Tibetan population individual on the Qinghai-Tibet Plateau of China or not according to the result. By adopting the scheme of the invention, whether an individual of 27 colonies belongs to Tibetan population individuals on the Qinghai-Tibet Plateau of China or not can be recognized. By adopting the scheme, the distinguishing rate of East Asian subpopulations can be increased, and detection clues can be provided for related cases.

The invention provides an analysis method for electrochemical detection of lithium precipitation and a corresponding module device thereof, and the method comprises the following steps: charging a to-be-detected battery, then carrying out standing treatment, and collecting an electrochemical signal of the battery; characterizing whether the sample battery generates lithium precipitation or not inthe previous charging process by analyzing the collected electrochemical signal, and grading the lithium precipitation degree of the sample battery; and if the semi-quantitative analysis needs to be carried out, carrying out discharge treatment on the lithium-separated battery and collecting an electrochemical signal. The battery semi-quantitative lithium precipitation amount is obtained by analyzing the discharge and the previous charge electrochemical signal. According to the method, the defects of complicated operation, low precision, toxicity, harm and the like of the traditional method for analyzing lithium precipitation by disassembling the battery are overcome, and the lithium precipitation of the battery is quickly, accurately and quantitatively analyzed by utilizing an electrochemical means and a modular device.

The invention provides a biosensor based on the up-converting phosphor technology and application of the biosensor. The biosensor comprises an exciting light path module, a photoelectric signal receiving and converting module, a control system module, an amplification shaping circuit, a coding interface circuit and a data-caching module, wherein the exciting light path module comprises a main detection exciting light module and an auxiliary optical scanning module; the photoelectric signal receiving and converting module comprises a main detection photoelectric converting module and an auxiliary scanning photoelectric converting module. The biosensor adopts a phosphor material (platinum / palladium porphyrin) as a biomarker, and a result is shown in an infrared light signal form under the green light irradiation, and can be interpreted by an instrument, so that the quantitative detection of the target substance to be detected is realized.

The invention discloses a method for synthesizing a clenbuterol hydrochloride molecularly imprinted polymer. The method comprises the following step: by using clenbuterol hydrochloride as a template molecule and alpha-methacrylic acid as a functional monomer and performing interaction in the form of hydrogen bonds, adding a crosslinking agent N,N-methylene-bis acrylamide and an initiator ammonium persulfate to perform free radical copolymerization, thereby obtaining the clenbuterol hydrochloride molecularly imprinted polymer, wherein the mole ratio of the template molecule, functional monomer and crosslinking agent is (117-274):(1-300):(30-90). The clenbuterol hydrochloride molecularly imprinted polymer has the advantages of simple and quick synthesis process, low cost, high specificity and favorable stability, can be combined with a test paper method to prepare a test paper strip, and is used for trace on-line detection of clenbuterol hydrochloride.

The invention relates to preparation and detection methods of a fluorescent quantitation high-sensitivity visual joint inspection immunochromatography test strip based on magnetic enrichment. Fe3O4 magnetic nanoparticles are subjected to multiple wrapping through a macromolecule polylactic acid-hydroxyacetic acid copolymer by an ultrasonic emulsification method, so that a target substance can be fast and effectively combined onto a magnetic microsphere; a newly generated compound has the same magnetic responsibility in the magnetic field, so that samples to be inspected are enriched; the detection sensitivity is enhanced; meanwhile, the joint detection is realized; the double-antibody sandwich immunoreaction is performed by an immunochromatography test strip detection platform; the reaction mechanism of fluorescence signals can be quenched through magnetic nanoparticles under the specific conditions, so that rapid qualitation under the naked eye condition and precise and quantitative wide-range bimodal detection in dark field test are realized; meanwhile, the superparamagnetism of the magnetic nanoparticles is used for enriching serum to be detected; the accuracy of breast cancer early diagnosis and the universality of community screening are improved through the joint detection of breast cancer tumor markers CEA (carcinoembryonic antigen) and CA153.

A device for detecting polycyclic aromatic hydrocarbon in a water sample on site comprises a sample liquid tube, a cleaning liquid tube, an eluent tube, a regeneration liquid tube and an enhancement liquid tube, wherein each of the sample liquid tube, the cleaning liquid tube, the eluent tube, the regeneration liquid tube and the enhancement liquid tube is connected with a peristaltic pump, a first peristaltic pump is connected with a first three-way solenoid valve, a second peristaltic pump is connected with a second three-way solenoid valve, a third peristaltic pump is connected with a third three-way solenoid valve, a fourth peristaltic pump is connected with the third three-way solenoid valve, the third three-way solenoid valve and the second three-way solenoid valve are connected, the second three-way solenoid valve is connected with the first three-way solenoid valve, the first three-way solenoid valve is connected with an adsorption column, the adsorption column is connected with a detection cell, a fifth peristaltic pump is connected with the detection cell, and the detection cell is connected with a Raman spectrometer. The invention further provides a method for detecting the polycyclic aromatic hydrocarbon in the water sample. With the adoption of the device and the method, analysis is rapid, the sensitivity is high, a few samples are used, the application range is wide, operation is simple and convenient, repeated usage can be realized, and carrying is convenient.

The invention discloses a novel Marburg virus fluorescent quantitative PCR (Polymerase Chain Reaction) detection method and a Marburg virus PCR detection system. The system consists of a primer, a probe, Premix Ex Tag reaction liquid and sterilized Tris water. The primer and the probe have high detection specificity and high sensitivity, are very suitable for the Marburg virus, and do not undergoany cross reaction with an Ebola virus.

The invention discloses a novel fluorescence quantitative PCR (Polymerase Chain Reaction) detection method for yellow fever viruses and a yellow fever virus detection PCR system. The yellow fever virus detection PCR system comprises primers and probes, a Premix Ex Taq reaction liquid, and sterilized Tris water, wherein the primers and the probes are good in detection specificity and high in sensitivity, is very suitable to bouquet fever viruses, and has no cross reactions with the yellow fever viruses and encephalitis B viruses.

The invention discloses a new fluorescence quantitative polymerase chain reaction (PCR) detection method for rift valley fever virus and a rift valley fever virus detection PCR system. The system consists of primers and a probe, Premix Ex Taq reaction solution, and sterile Tris water, wherein the primers and the probe have good specificity and high sensitivity, and are suitable for no cross reaction of the rift valley fever and Dengue virus.

The invention provides a high-throughput detection device and method for rapid analysis of Raman spectrum. The high-throughput detection device for rapid analysis of the Raman spectrum comprises an optical-disc-shaped micropore plate, a rotary slide table and a sealing cover, wherein a plurality of micropores for accommodating samples are arranged on the optical-disc-shaped micropore plate, and the micropores are arranged in a uniform circular array mode from inside to outside on the optical-disc-shaped micropore plate; the optical-disc-shaped micropore plate is connected to the rotary slide table in a threaded mode; and the size of the sealing cover is matched with the size of the optical-disc-shaped micropore plate and is in sealing with the optical-disc-shaped micropore plate. The high-throughput detection method rapid analysis of the Raman spectrum can be widely applied to multi-throughput detection and analysis of food and environmental pollutants. The micropore plate is combinedwith the precision rotary slide table, the qualitative and quantitative analysis of different components are achieved by collecting SERS spectral data of each sampling point without repeatedly adjusting the focal length. The high-throughput rapid analysis of components of a plurality of samples to be detected can be achieved, and rapid on-site detection application is facilitated.

The invention discloses a method for performing color-difference evaluation on cigarette outside wrapping paper. The method comprises the following steps: cutting wrapping paper needing to be evaluated into round pieces, downwards tiling one side with colors to the bottom of a sample cup, arranging the sample cup in a spectral acquisition area of a Nicolet ANTARIS Near-IR Analyzer near-infrared spectrometer, and processing the acquired spectrum by using TQ Analyst 9.0 data processing software; and calculating the color similarity of two samples, when the similarity n is more than or equal to 95 percent, judging that color difference is avoided; when n is more than or equal to 90 percent and less than 95 percent, judging that slight color difference exists; and when n is less than 90 percent, judging that obvious color difference exists. The method disclosed by the invention is simple and feasible, the calculation result is accurate, and the error problem during slight color difference analysis exceeding the calculation range of the conventional colorimeter tolerance formula can be effectively solved. The method is good in effect when being applied to outside wrapping paper color difference analysis with gradually change colors and high color change rate.

The invention discloses a method for determining the content of metal elements in polyvinylidene fluoride resin. The method comprises the following steps of heating and dissolving a polyvinylidene fluoride resin sample by using an organic solvent, and analyzing the metal element content of the polyvinylidene fluoride resin sample by using an inductively coupled plasma emission spectrometer (ICP-OES) in an organic system direct sample injection mode. The method specifically comprises the following steps of (1) preparing a polyvinylidene fluoride resin sample solution; (2) preparing a standard solution by a standard addition method; (3) setting analysis conditions of the inductively coupled plasma emission spectrometer; and (4) measuring the content of metal elements in the sample. The analysis method is high in precision, low in detection limit, capable of rapidly carrying out qualitative and quantitative detection on the inorganic metal elements in the sample, easy to operate, rapid inanalysis, stable and reliable in result, low in instrument cost and maintenance cost and easy to popularize and apply.