207results about How to "Meet the testing requirements" patented technology

The invention discloses camera detecting equipment, which comprises a base, a support, a test graph fixing frame and a camera fixing bracket, wherein the support is arranged on the base and can move on the base along the Y-axis direction; the test graph fixing frame is used for fixing a test graph, arranged on the support and can move on the support in the Z-axis direction; the camera fixing bracket is arranged on the base; and a camera to be detected is arranged on the camera fixing bracket, so that the camera is opposite to the test graph arranged on the test graph fixing frame. The invention also discloses a camera detecting system. The equipment provided by the invention can be fixed on a worktable, and related test parts can be adjusted along a screw rod and are stable so as to assist a computer to detect and calculate the central offset and rotation angle of an image shot by the camera and meet the higher level requirement on the quality of the shot image.

The invention discloses a method that can simultaneously analyze various elements, aims at solving the defects that currently the analysis of various elements cannot be finished at one time, and consequently the analysis time is long and the reagent usage is large, and discloses a method that can simultaneously measure the elements of silicon, aluminum, calcium and barium and comprises the following steps: a test sample is preprocessed through the acid dissolution method, microwave-digested, naturally cooled, and then placed into a volumetric flask with scales, diluted and shaken until well distributed, a solution with a standard working curve is prepared, an atomic emission spectrograph of inductance coupled plasmas is started and led to reach the measurement requirement, a plasma torch is lighted, the relative standard deviation of the plasma torch is led to be less than 5 percent, wavelength of each element is chosen, the working curves are plotted, and the content of each element is computed. The method combines the microwave digesting sample dissolution technique with the atomic emission spectrograph of inductance coupled plasmas, can simultaneously analyze nine elements including silicon, etc., is accurate and quick, has greatly reduced reagent usage, and reduces the environmental pollution that is caused by chemical reagents.

The invention relates to a motor test system, which comprises a test controller, an inverter, a power tester, a rotating speed and torque sensor, a direct-current voltage stabilization power supply cabinet and a personal computer (PC). The invention also provides a method for testing a motor for an electric vehicle based on the test system. According to the test method, a whole rack test system is controlled through controller area network (CAN) communication; a rotating speed and torque measurement command is sent based on standard test data; rotating speed and torque data is fed back in real time by the rotating speed and torque sensor; and the feedback data is compared with standard data to judge whether the external characteristic of the motor is qualified. By the test system and the test method, the external characteristic of the tested motor can be detected accurately and efficiently, so that the delivery quality of the motor can be guaranteed; furthermore, the test process is high in automation degree and precise in test; and the method is easy to operate and low in cost, and has very wide application prospect.

An auxiliary loading device for a bogie frame strength test belongs to the field of auxiliary loading devices for railway vehicle bogie frame strength tests and comprises four vertical torsion load loading seats, two vertical load loading seats, two groups of nut gaskets, transverse load loading units, four braking load loading sets, two snake-shaped swing resistant load loading seats, two gear box load loading seats, two longitudinal load and transverse restrain loading beams, two motor load loading seats, vertical restraint traction bases and two testing traction pull rods. The auxiliary loading device for the bogie frame strength test has the advantages that an original arrangement space is expanded through a plurality of force bearing load loading components with expanding structures, a bogie frame strength test needs not simplify the numbers of a stress loading points, the arrangement space among every application force driving component or force bearing component is sufficient, interference and conflicts cannot occur among the every application force driving component or force bearing component, and the testing results of a simulation bogie in a dynamic comprehensive force bearing state is more accurate and reliable.

The invention aims at providing an automatic detection method of an oblique incidence body wave technical steel plate, which carries out comprehensive and fast detection to steel plates with the thickness of less than 75mm and accurately detects various defects, and a device thereof, and the device consists of an electromagnetic ultrasonic detection unit and a circuit system. The invention adopts the oblique incidence body wave mode to carry out detection to the steel plates, which not only is more sensitive to the detect in size, but also can detect the defects of cracks and the like, thus having more comprehensive detection result. The detection unit adopts a mode that transverse arrangement and longitudinal arrangement are combined, thus being more sensitive to the defects of the transverse and the longitudinal direction. The invention combines an ultrasonic transmission method and a reflection method, which not only has higher sensitivity to the defects, but also can position the defects precisely, thus having higher confidence level of the detection result. The invention has wider range for detecting the thickness of the wall of the steel plate, with the highest of 75mm, thus meeting the requirements for the steel plate with thick wall.

The invention relates to a detector, a universal automobile meter detector and the detecting method thereof, comprising: CPU control module, frequency signal generating module, network resistance output module, programmable voltage output module, automobile meter indicator detection module, display module, and keyboard control module, where the CPU globally controls the six other modules and constantly controls the output of each module according to the instruction inputted by the keyboard control module, and various check parameters can be inputted, modified and stored through the keyboard at will so as to meet the check requirements for various meters. And the invention is a universal automobile meter detector, able to meet the detection requirements for odometers, speed meters, water temperature meters, fuel oil meters, engine oil pressure meters, gas pressure meters, voltage meters, various indicators on meter panels in various automobile meters, and it is simple to operate.

The invention relates to an ultrasonic detection technique, in particular to an electromagnetic ultrasonic automatic flaw detection method for plates and a device thereof. In the invention, vertical incident waves are used for flaw detection and can detect plates with larger thickness. An electromagnetic ultrasonic flaw detection probe which is used by the invention uses a pulse electromagnet to provide a magnetic field, has the characteristic of short duration time of the magnetic field, and can efficiently detect ferromagnetic plates and nonferromagnetic plates. The invention combines the echo waves of a bottom surface and flaws, thereby reducing the detection blind area, and not only achieving higher sensitivity to the flaws but also accurately positioning the flaws. The invention uses the electromagnetic ultrasonic technique as a core and has no need of an acoustic coupling agent and no need of pretreatment on the surface of a test piece in the detection process, thus the invention can be used for on-line detection on plates in various severe environments (such as high temperature or high speed) and has stronger environmental suitability and higher detection efficiency.

The invention discloses a 3D visual inspection system of gluing quality. The system comprises a 3D contour scanner, an image processing unit, an encoder, and a computer. The 3D contour scanner consists of an area array CCD and a straight linear laser generator. The image processing unit transmits an adhesive tape 3D image signal shot by the 3D contour scanner to the computer. The encoder fixed with the 3D contour scanner together generates a pulse and triggers the 3D contour scanner to collect an image. The computer with image processing software arranged inside the computer is able to locatean adhesive tape track, calculate the width and area of the adhesive tape, and compare the width and area of the adhesive tape with respective preset threshold values to determine whether the gluing is qualified. In addition, the invention also discloses a 3D visual inspection method of gluing quality. Compared with the prior art, the 3D visual inspection system and method have the following beneficial effects: the continuity and location of glue can be detected accurately and stably; the detection efficiency is improved; and the detection reliability is enhanced.

The invention relates to a machine vision detection method for a workpiece contour flange protrusion based on G-code guidance. The specific object is to detect the workpiece contour flange protrusion.The method comprises the steps that the transformation relation between workpiece coordinates and image coordinates is analyzed and inferred; an image region-of-interest is extracted under the guidance of a G-code contour in combination with the coordinate transformation relation, the processing method of mid-value filtering, image binarization and edge detection is performed on the extracted region-of-interest, and a workpiece contour edge is obtained; and a standard G-code contour is used as a benchmark to recognize and judge the edge protrusion, a minimum enclosing rectangle method is adopted to enclose the contour edge protrusion, and visual detection of the contour edge protrusion is realized. Through the machine vision detection method for the workpiece contour flange protrusion, starting point, ending point and height information of a feature segment of the workpiece contour flange protrusion can be effectively recognized.

The invention relates to a method for detecting the residue amount of terracycline antibiotics in milk and dairy products. The method utilizes an ultra performance liquid chromatography - electrospray tandem triple quadrupole mass spectrometer to determine the residue amount of the terracycline antibiotics. The method is as follows: a sample is extracted from Na2EDTA-McIlvaine buffer solution (pH4.0); proteins are removed by trichloroacetic acids; a columella is extracted through an HLB solid phase and then purified and enriched; the sample is separated by a chromatographic column, with the column temperature of 30 DEG C; gradient elution is performed by utilization of water solution (v/v) which contains 0.1 percent of methanoic acids and acetonitrile as a moving phase; and quantitative detection is performed by adoption of the multi-reaction monitoring means. The detection limit of instruments is between 1.0 and 2.0 mu g/kg; a related coefficient r reaches over 0.999 within the linear range of between 1 and 100 mu g/kg; and the recovery rate is between 81.7 and 100.7 percent (the addition levels are 10 mu g/kg, 50 mu g/kg and 100 mu g/kg). The method has the advantages of quickness, accuracy, high sensitivity and wide application scope.

The invention discloses a comprehensive inspection instrument for a piston profile cam lift range. A guide rail platform of a machine body is horizontally connected with a spindle drum and a tailstock, and is longitudinally connected with a bottom plate of a length measuring instrument, the left end of a driver seat on the spindle drum is provided with a round grating rotary encoder the middle of which is provided with an elastic slice winding a coupling to bear the torque force; a motor is connected with a worm and worm wheel mechanism, a pinion on a worm-wheel shaft is meshed with a gear outside the right side of the spindle drum, the gear is connected with an eccentric chuck, a catch plate and a lathe dog; a sliding shaft is arranged in a transition sleeve at the middle of the tailstock, a finial spindle is connected with a screw through a spring, the right side of the tailstock is provided with a shift fork device; the middle of a grating fixing base is provided with an adjusting screw, a compression spring and a measuring rod are arranged in the rear cavity of the adjusting screw, the grating fixing base is provided with a length grating ruler and a grating sensor; the round grating rotary encoder and the grating sensor are connected with a digital display control device. The comprehensive inspection instrument solves the problems that the prior art is not universal, time consuming and difficult in maintenance, and has the characteristics of high detection efficiency and measurement accuracy, long service life and low cost.

The invention discloses a soil sample treatment device with a vibration drying function for environmental detection. The soil sample treatment device comprises a casing, wherein a feeding hole is formed in the top of the casing; a pair of grinding rollers is arranged in the casing below the feeding hole; centers of the grinding rollers are supported by grinding roller shafts; a plurality of grinding teeth are uniformly arranged on the circumferences of the grinding rollers; an intercepting screen is arranged below the grinding rollers and is arc-shaped, and a bulge is formed in the center of the intercepting screen; a grinding plate is arranged below the intercepting screen; the grinding plate comprises a horizontal plate and an arc plate; the horizontal plate and the arc plate are spliced; a grinding roller is arranged above the horizontal plate; a vibration plate is arranged below the grinding plate; a resistive heater is arranged in the vibration plate; a vibration device is arranged in the middle on the lower side of the vibration plate and comprises a rack; the lower side of the rack is fixedly connected with the middle on the lower side of the vibration plate. The soil sample treatment device disclosed by the invention has the beneficial effects that soil is subjected to stepwise grinding treatment, so that the soil granularity meets a detection requirement.

A method of measuring a plurality of heavy metals in an organic pigment by a microwave digestion-inductively coupled plasma mass spectrometry is disclosed. The method comprises: a first step of preparing agents and materials, a second step of preparing instruments and devices, a third step of preparing standard working solutions, a fourth step of subjecting an organic pigment sample to microwave digestion pretreatment, a fifth step of setting main working parameters of ICP-MS instruments and a sixth step of selecting pretreatment of the sample.

The invention discloses a meta-zinc tetraphenylporphyrin-based electrogenerated chemiluminescence body. The chemiluminescence body is prepared from aniline imidazole, footballene pyrrolidine tricarboxylic acid and meta-zinc tetraphenylporphyrin. The invention also provides a preparation method of the chemiluminescence body, comprising the step that on the commercial footballene pyrrolidine tricarboxylic acid, reacting with the meta-zinc tetraphenylporphyrin in an axial coordination way by taking the aniline imidazole as a bridging object, so as to generate the efficient and stable novel electrogenerated chemiluminescence body. On this basis, according to the envelope characteristics of beta-cyclodextrin molecules, a stable electrogenerated chemiluminescence biological sensing system with beta-cyclodextrin enveloping fixed chemiluminescence body molecules is designed and built, realizes high sensitivity and high specificity detection on DNA (deoxyribonucleic acid), and is stable in electrogenerated chemiluminescence output signal and lower in detection lower limit. The detection system can be applied to biological medicine, clinical diagnosis, environmental monitoring and the like.

The invention discloses a method for rapid detection of the residual mount of sulfanilamide in food. The method comprises the following steps: firstly enabling the sulfanilamide and fluorescamine to perform derivation reaction, further enriching derivative products by using cloud point extraction, adding a sample enrichment and a standard plate prepared from a sulfanilamide standard product on a thin layer silica gel plate, comparing the fluorescence intensities of the two under an ultraviolet lamp to judge the concentration range of the fluorescamine in a sample, and determining the residual amount of the sulfanilamide in the food, wherein a detection limit of the method is 0.08 micron g/mL. The method disclosed by the invention has the advantages of simplicity in operation, small using amount of organic solvent, high detection sensitivity, short detection time, strong specificity and capability of realizing effective separation from interfering substances, is a simple, convenient, fast and accurate analytical method, does not need large-scale instruments, only needs to configure small-scale instruments and equipment, and further has extensive application prospects.

The invention relates to a method for detecting residual quantity of norfloxacin antibiotic in milk. The method utilizes an ultra-performance liquid chromatography (UPLC)-electrospray tandem triple quadrupole mass spectrometer to determine the residual quantity of norfloxacin antibiotic. A sample is extracted by Na2 EDTA-Mellvaine buffer solution (pH 4.0), subjected to protein removal by trichloroacetic acid, purified and concentrated by a PEP solid phase extraction columella, separated by adopting a chromatographic column with column temperature of 30 DEG C, subjected to gradient elution by adopting aqueous solution (v/v) containing 0.1% formic acid and acetonitrile as a flowing phase, and then quantitated by adopting a multiple reaction monitoring manner. The instrument detection limit is 1.0-2.0 mug/Kg; and within the linear range of 1-100 mug/Kg, the correlation coefficient r can reach more than 0.999, and the coefficient of recovery is 80%-105% (adding level of 10, 50 and 100 mug/Kg). The method has the advantages of rapidness, accuracy, high sensitivity and wide application scope.

The invention belongs to the technical field of marine product detection, and particularly relates to a method for determining the trace amount of organic tin in marine products. The method comprises the steps that a to-be-determined sample is ground into powder after being preprocessed, the powder is soaked, extracted, frozen, purified, derived, processed through a cleanert florisil column and concentrated to obtain a to-be-determined sample solution; series of different-concentration organic tin mixed standard solutions are added in equivalent blank matrixes same as a sample matrix, soaked for a certain time and then processed through the mode same as the sample; a gas chromatography-tandem mass spectrum detection system is adopted to determine the standard mixed solutions, and a working curve is drawn; the to-be-determined sample solution is determined, the peak area ratio is obtained from a chromatogram chart of the to-be-determined sample solution, regression is performed on the working curve to obtain regression values, and then the concentration of all target objects in the to-be-determined sample can be calculated. The detection method can determine the concentration of butyltin and triphyltin simultaneously, is sensitive, accurate, rapid, simple and convenient and can be applied to detection of the organic tin in the marine products.

The invention discloses a method for detecting amoxicillin residual quantity in milk and meat products. The method includes the following steps: preparing amoxicillin standard aqueous solution; adding a nonionic surfactant; reacting the obtained solution with quinone or alizarin to get a charge transfer system; determining the wavelength scanning range of fluorescence or ultraviolet; further calculating the linear range, working curve and other parameters of the standard solution; processing the sample to be detected by corresponding charge transfer reaction; determining reaction parameters under ultraviolet or fluorescence; and calculating to obtain the amoxicillin residue quantity. The technology further enhances the value of fluorescence intensity or UV absorption by utilizing the sensitizing effect of non-ionic surfactants, thus meets the low-residue testing requirement; simultaneously improves the system stability significantly, makes up the disadvantage of poor detection stability of fluorescence in the earlier application, and is more feasible in the actual detection.

The invention relates to a method for realizing a finance card terminal by a Bluetooth mobile phone. The method comprises the step of providing a mobile phone with a Bluetooth function and the finance card terminal. The method is characterized in that communication data between the finance card terminal and the mobile phone is simulated into an audio signal, data communication between the mobile phone and the finance card terminal is realized through a Bluetooth protocol, and data interaction with a bank system is completed by using the communication function of the mobile phone and the data received from the finance card terminal. The invention can realize finance services such as transaction, transfer, inquiry and payment are carried out by using various finance cards and non-finance cards.

The invention discloses a small target detection method based on an attention mechanism, and the method employs an improved Resnet network as a feature extraction network, and enables the Bottle Net network architecture of the Resnet network to be decomposed into a plurality of uniform branch structures, thereby reducing the amount of hyper-parameters, and obtaining a better effect. Space and channel attention is introduced, information among multiple layers is fused, and an improved FPN is used for multi-scale prediction, so that the model can detect small targets and also can detect medium and large targets; each detection output predicts a conditional probability value for each category, and a prediction result is directly obtained from the picture, so that target information is obtained; and transmitting the feature maps of the three scales to a detection head for joint training. According to the method, the deep neural network is used for detection, different data sets are obtained according to different application scenes for training, various different fields can be used, and high detection accuracy is kept.

The invention discloses a method for detecting solid fraction and final stage of solidification of a continuously cast slab. The method comprises the following steps of: (1) applying oscillation excitation to the continuously cast slab, so that the continuously cast slab generates elastic deformation under oscillation excitation; (2) measuring the strain of elastic deformation of the continuously cast slab, the stress loads applied on the continuously cast slab by oscillation excitation, and the stress/strain phase difference of elastic deformation of the continuously cast slab with oscillation excitation after the continuously cast slab generates resonance to oscillation excitation; (3) calculating dynamic modulus of the continuously cast slab; and (4) obtaining the solid fraction and final stage of solidification of the continuously cast slab according to a solid fraction and dynamic modulus characteristic curve of the continuously cast slab. The invention also discloses a device for detecting solid fraction and final stage of solidification of a continuously cast slab. The method and the device provided by the invention can conduct nondestructive online measurement on the continuously cast slab, and can improve the solid fraction detection accuracy as well as the location accuracy of final stage of solidification of the continuously cast slab.

The invention relates to a method for simultaneously detecting 15 antibiotics in aquaculture sediment by combining microwave extraction-solid phase extraction pretreatment with a liquid chromatography-mass spectrometry (LC-MS) technology. The method comprises the following steps: step (1) pretreating sediment samples, adding internal standard substances sulfamethoxazole-13C6, norfloxacin-D5, penicillin G potassium salt-D5, tetracycline-D6, olaquindox-D4, amoxicillin-13C6 and trimethoprim-D3 indicating a recovery rate, adding an acetonitrile-phosphate buffer solution for microwave extraction ofextraction liquid; step (2) performing solid phase extraction, enrichment and purification on target antibiotics; and step (3) quantitatively detecting 15 antibiotics of seven types in sediment witha liquid chromatograph/mass spectrometer. The method can simultaneously detect residues of 15 antibiotics containing 8 new antibiotics in the aquaculture sediment at a time by optimizing the internalstandard substances, screening appropriate pretreatment method and optimizing detection conditions, and has the advantages of high recovery rate, high sensitivity, high stability, low detection limit,more true and reliable detection results and the like.

The invention belongs to the field of electrical and electronic products and chemical industry products, and relates to a detection method for four benzotriazole ultraviolet absorbers in plastics and related products, particularly to a detection method for the UV327 residue, the UV328 residue, the UV350 residue, and the UV320 residue by using a gas chromatography mass spectrometry method. According to the present invention, after a sample is subjected to ultrasonic extraction with toluene, filtration is performed with a film, analysis is performed with GC-MS, and quantitation is performed with an external standard method; and the method of the present invention has advantages of accurate qualitation, rapid quantitation, and the like.

The invention relates to a high-temperature superconducting cable high-voltage testing system and method, in particular to a high-temperature superconducting cable alternating current tolerance testing system and method. A conventional power cable is connected with a tested high-temperature superconducting cable in an end-to-end mode to form a closed loop. A transformer is used as a voltage source to lift the voltage to ground of a superconducting cable wire core. A current booster is used as a current source to form a large current in an induction mode in a whole closed loop through a conventional power cable section according to the mutual inductance principle. Given that the cables are large capacitive load, a compensation reactor is arranged to balance the capacitive current in the loop, so that the voltage source works under an underloading situation far below the nominal output, the number of the front ends of the current booster is reasonably arranged, and accordingly long-time operation of the whole testing system is guaranteed, and a high-temperature superconducting cable long-time high-voltage large-current alternating current tolerance test is carried out. The whole system is simple in structure and easy to implement, and cost is saved.

The invention discloses a universal seat detecting device, which comprises a detecting platform, two seat front leg fixing seats, two seat back leg fixing seats, two seat handrail detecting plate fixing seats, two seat backrest detecting plate fixing seats, two handrail detecting plates and two backrest detecting plates, wherein coordinate lines are engraved on the detecting platform; the two seat front leg fixing seats, the two seat back leg fixing seats, the two seat handrail detecting plate fixing seats and the two seat backrest detecting plate fixing seats are fixed on the detecting platform; the two seat front leg fixing seats are respectively used for fixing two front legs of an automobile seat; the two seat back leg fixing seats are respectively used for fixing two back legs of the automobile seat; the two seat handrail detecting plate fixing seats are respectively used for fixing the two handrail detecting plates; and the two seat backrest detecting plate fixing seats are respectively used for fixing the two backrest detecting plates; as the positions of four foundation fixing seats for fixing seat foundations can be randomly adjusted, good generality is obtained and detecting requirements of different seats can be satisfied; environment of the seats relative to a vehicle body can be detected; and the structure is simple, and the generality is excellent.

The invention relates to a headspace gas chromatography detection technology, particularly discloses a vapor headspace enrichment detection method for a trace amount of volatile organic pollutants in seawater, and belongs to the technical field of water environment detection. The method sequentially comprises the four steps of water sample collection and storage, primary enrichment condensation, secondary enrichment condensation and headspace gas chromatography detection. According to the method, water vapor is used as sweeping gas, water is used as an absorbent, a water sample is secondarily distilled and condensed, and the condensed sample is enriched for headspace gas chromatography detection; a vapor headspace enrichment method is adopted, so that the using amount of an organic solvent in a process of enriching the volatile organic pollutants in the seawater is effectively reduced, and the interference of other components to a target object is prevented; an extraction process of the enrichment method is simple and convenient, the introduction of other solvents is avoided, the method is environment-friendly, low in limit of detection and high in recovery rate and reproducibility, and the requirements of detection of a trace amount of volatile organic pollutants in the seawater can be met.

The invention relates to a malachite green collaurum detection card and production and application methods thereof, belonging to the technical field of immunology. The rapid diagnosis card comprises a case and a test strip; wherein the case is opened with a sample injecting hole and an observation window, the test strip is arranged in the case, the middle part of a PVC liner plate is superposed with a nitrocellulose membrane, the two ends are respectively superposed with an absorbent pad and a sample pad, the nitrocellulose membrane is overlapped and connected with the absorbent pad and the sample pad, a membrane containing malachite green monoclonal antibody immune collaurum compound is coated on a sample region, and a detection strip containing malachite green envelop antigen and a quality control strip containing goat anti mouse IgG are arranged on the nitrocellulose membrane. The invention is a rapid, accurate and sensitive diagnosis card, requires no special apparatus, has simple operation and can meet the detection requirements of food safety, fishery and detection mechanism.

The invention discloses an analysis method for amide compounds. The analysis method adopts a gas chromatography-mass spectrometry method. According to the invention, under the optimized analysis conditions, very good chromatographic peaks of the five amide compounds can be obtained within 15 min; very good separating effects can be obtained; the linearities of all the target compounds are good within a concentration range of 0.01-10 mg/L; the correlation coefficients are all greater than 0.9995; the detection limits reach 0.01 mg/kg; the relative standard deviations are smaller than 2.5%; the recovery rates of standard addition are 80-105%. The analysis method is convenient, fast, accurate, and reliable, and can meet REACH regulation requirements on hazardous amides.

The invention provides a method for measuring isothiazolinone antibacterial finishing agents in textiles, and relates to the field of product quality analysis, and discloses a method for separating and detecting the five isothiazolinone antibacterial finishing agents. The following liquid phase chromatographic conditions are adopted, and according to the liquid phase chromatographic conditions, a chromatographic column is XR-ODS (2.2 microns), the inner diameter is 100 mm*3.0 mm, column temperature is 40 DEG C, column flow speed is 0.4ml/min, a diode array detector is adopted, and detection wavelengths are 277 nm and 283 nm. According to the gradient elution conditions, the volume ratio of methanol to water is 40 to 60 for 0.00 min; the volume ratio of methanol to water is 90 to 10 for 1.90 min; the volume ratio of methanol to water is 90 to 10 for 6.00 min; the volume ratio of methanol to water is 40 to 60 for 6.01 min; 9.00 min. The five isothiazolinone antibacterial finishing agents are separated, a good baseline separation effect can be achieved, and peak types are sharp and symmetric.

The invention discloses an identification method for dalbergia odorifera chen in rosewood. According to the method, a primer, a probe and a molecular level PCR (polymerase chain reaction) detecting method are used, and the primer and the probe have exclusive specificity of the dalbergia odorifera chen. According to the method, detection sample capacity is low, proper DNA (deoxyribonucleic acid) information of wood serves as a basis, a species identification result of the dalbergia odorifera chen can be obtained quickly, accurately and objectively, and the shortcoming that the traditional identification method is high in subjectivity and is necessarily established on the basis that detected wood has a complete morphological structure which is easy to recognize is overcome. Therefore, the identification method can be used for performing enforcement detection for relevant departments such as an agriculture and forestry department, an industry and commerce department and an inspection and quarantine department, can also be used for consumer rights protection identification of a third-party detecting organization, and has an important role in standardizing markets, protecting consumer rights and interests and promoting protection and utilization of species resources.