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108results about How to "No smearing" patented technology

Method for controlling quality of ginkgo leaves and extract thereof

The invention discloses a method for controlling the quality of ginkgo leaves and an extract thereof. After the screening of a great quantity of experiments, the method adopts ultra-high performance liquid chromatography for detection; and the method can be used for detecting three types of components including flavone, terpene lactones and phenolic acid, twenty-four active compounds in total, in the ginkgo leaves and the extract of the ginkgo leaves. The results of the experiments prove that the method is high in detection sensitivity and good in stability, and can be used for objectively, comprehensively and accurately evaluating the quality of ginkgo leaf medicines, the extract of the ginkgo leaves and ginkgo leaf preparations, thus having important significance on controlling the quality and guaranteeing the clinical treatment effect.
Owner:NANJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE

Circumferential scanning imaging control method and circumferential scanning imaging system

The invention relates to a circumferential scanning imaging control method and a circumferential scanning imaging system. A circumferential scanning imaging system which the method is based on comprises an orientation scanning rotary table, and an infrared optical system, a detector and an orientation compensation oscillating mirror which are fixedly arranged on the orientation scanning rotary table, a view field offset generated every time when the orientation compensation oscillating mirror swings is used for compensating a view field angle corresponding to successive imaging, and when an imaging view field is fixed, a swinging angular speed needed by the orientation compensation oscillating mirror is alpha / T<INT>, wherein alpha is an angle which the oscillating mirror needs to swing for compensating the view field, and T<INT> is integration time of exposure of the detector, needing to be met when the orientation compensation oscillating mirror swings an angle of alpha. In circumferential scanning control, the swinging angular speed of the oscillating mirror has nothing to do with the rotating speed of the rotary table, and since the swinging angular speed of the oscillating mirror is not affected by the rotating speed of the rotary table, the control method is simple to control, is not prone to control errors and realizes non-trailing coupling.
Owner:LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC

Automatic image data collecting system

InactiveCN101557472AUniform light source environmentSolve the problem of color distortion in captured imagesTelevision system detailsConveyorsControl systemData acquisition
The invention discloses an automatic image data collecting system which comprises a sample transfer control system, an image collecting control system and an optical imaging system. The sample transfer control system is used for transferring samples to a preset position, resting the samples in the preset position and sending image collecting order; the image collecting control system is used for receiving the image collecting order from the sample transfer control system and controlling the image data of the sample collected by the optical imaging system; and the optical imaging system comprises a camera for collecting image data of the samples. The automatic image data collecting system uses the standardized light source system during the image data collecting process of gold, jewel, jade ornaments, automatically collects the image data and solves a series of problems such as low working efficiency, distortion of the received image data, the impossibility of direct usage of the collected images and the like when non-standardized light source is applied to the image collecting process of samples during the data collection of the existing product data base, image collection of the exhibited samples and the image data collection of samples such as jewelry, jade and other ornaments to be appraised.
Owner:HUSNG SHIJI BEIJING TECH DEV

LCD faceplate of active matrix, and driving method

The invention discloses an active matrix LCD panel and the driving method thereof. And the LCD panel comprises plural rows of scanning lines, plural columns of data lines, plural liquid crystal pixels at the intersects of the scanning and data lines, plural scanning signal chips, plural data signal chips, and plural black inserting signal chips, where the scanning signal chips continuously generate plural scanning signal groups within a frame period, including a data display-scan signal and a black insert-scan signal and in turn provide them for the scanning lines, the data signal chips provide data signals for the data lines to make the pixels display image data, as the scanning signal chips provide the data display-scan signal for the scanning lines, and the black inserting signal chips provide a black inserting signal for the data lines to make pixels display black states, as the scanning signal chips provide the insert-scan signal for the scanning lines.
Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1

Method for detecting Jingwu capsule

ActiveCN103235082AThe identification method is feasibleGood spot reproducibilityComponent separationBiotechnologyAnthraquinones
The invention discloses a method for detecting a Jingwu capsule. The capsule is prepared from fleeceflower root, prepared rhizoma polygonati, glossy privet fruit steamed with wine and yerbadetajo herb. The method has the beneficial effects that on the basis of existing quality test, identification of fleeceflower root and glossy privet fruit and determination of contents of free anthraquinones and combined anthraquinones are added, identification of rhizoma polygonati and yerbadetajo herb and determination of the content of 2,3,5,4'-tetrahydroxy stilbene-2-O-beta-D-glucoside (C20H22O9) are improved and the main drug ingredients of the Jingwu capsule can be controlled more effectively, so that the quality monitoring level of the Jingwu capsule is greatly improved; and the method is more beneficial to monitoring the product quality by manufacturers and the regulatory authorities and can provide better guarantees for treatment of patients in medical treatment departments.
Owner:GUIZHOU SHENGSHI LONGFANG PHARMA

Chromatographic analysis method

The invention relates to a chromatographic analysis method. According to the chromatographic analysis method, a gas chromatograph and a sampling device are used, wherein the sampling device is used for providing fluid to be detected to the gas chromatograph; the gas chromatograph comprises a first chromatographic column, a second chromatographic column, a damping column and an FID detector; the sampling device comprises a ten-way valve and a six-way valve; the six-way valve can be selected to be in a state I and a state II; the ten-way valve can be selected to be in a first state and a second state; and the chromatographic analysis method comprises the steps of sample gas quantification, detection and back flushing. The chromatographic analysis method has the advantages that the dosage of carrier gas is saved, the accuracy of the sample gas separation is improved, the accuracy of the sample gas detection is improved, the life of the chromatographic columns is prolonged, and two different substances of the same sample gas can be measured at the same time, so that the working efficiency is greatly improved.
Owner:佛山市南海区环境保护监测站

Optimized exposure method and device for tailing of license plate

The invention discloses an optimized exposure method and an optimized exposure device for the tailing of a license plate. The method comprises the steps of setting a camera to a daytime working mode or a night working mode according to environmental brightness; when the camera works in the daytime working mode, setting a smaller shutter time upper limit value and a smaller gain upper limit value; when the camera works in the night working mode, setting a bigger shutter time upper limit value and a bigger gain upper limit value; when the environmental brightness darkens from bright, firstly improving the shutter time of the camera, and then improving the gain upper limit value of the camera; and when the environmental brightness lights up from dark, firstly reducing the gain upper limit value of the camera, and then reducing the shutter time of the camera. The device provided by the invention comprises the daytime working mode and the night working mode. According to the method and device provided by the invention, the license plate in an image shot by the camera does not have obvious tailing is ensured, and meanwhile the quality of the image shot by the camera at night can be improved.
Owner:ZHEJIANG UNIVIEW TECH CO LTD

Low-temperature-resistant display device

The invention relates to a display device. The display device comprises an array substrate, an alignment film layer, a liquid crystal layer and a backlight source, wherein the liquid crystal layer and / or the alignment film layer contain and / or contains a near-infrared light absorbent, and near-infrared light diodes are arranged in the backlight source. According to the display device, by emitting certain near-infrared light with a specific wavelength to TFT-LCD, the light absorbed by the substrate is reduced; most near-infrared light penetrating through the substrate is absorbed by the liquid crystal layer or the alignment film layer, and then the liquid crystal layer is heated, so that the response speed of a liquid crystal display at a low-temperature environment is increased, and the stability of electronic equipment is enhanced; the trailing problem occurring in a screen switching process or a scan display process of the display device at the low-temperature environment is solved.
Owner:BOE TECH GRP CO LTD +1

Method of on-line quickly detecting total anti-oxidizing property of sample

The invention belongs to the technical field of detection and analysis and relates to a method of on-line quickly detecting total anti-oxidizing property of samples through high performance liquid chromatography (HPLC) and a free radical detection system. The high performance liquid chromatographic analyzer includes, in a successively connected manner, a sample injector, a quaternary gradient pump, a chromatographic analytic column, a column oven and a photodiode array detector. The free radical detection system includes a free radical reaction module, a temperature controlling box, a high-pressure pump and an ultraviolet visible light detector. The free radical reaction module is connected to the high performance liquid chromatography. The temperature controlling box is used for controlling the temperature of the free radical reaction module. The high-pressure pump is connected to the free radical reaction module. The free radical reaction module is connected to the ultraviolet visible light detector. A C18 reversed-phase chromatographic column is employed as a chromatographic analytic column and is 20*3.9 mm and 5 [mu]m in model. The free radical belongs to chemical free radicals. The method is complete and beautiful in peak pattern without trailing phenomenon, is accurate in test result, is quick, is high in selectivity and is high in sensitivity.
Owner:SOUTHWEST UNIVERSITY

Method for measuring plant hormone in subgenus yulania plant

ActiveCN107024552APrevent browningMeet the requirements of impurity removalComponent separationPlant hormoneRepeatability
The invention discloses a method for measuring plant hormone in a subgenus yulania plant. The method comprises a plant hormone extraction step, a standard solution preparing step, a high performance liquid chromatogrophy step and a standard solution measuring step, wherein in the plant hormone extraction step, low-temperature grinding, low-temperature leaching at a dark place, PVPP (Crosslinking Polyvingypyrrolidone) extraction and the like are adopted, so that efficient extraction of zeatin is ensured. The method has the advantages of better peak form, high separation degree, no tailing phenomenon, high repeatability, high recycling rate, accuracy and reliability.
Owner:BEIJING FORESTRY UNIVERSITY

Method for desulfurizing exhaust gas

The invention discloses a method for desulfurizing exhaust gas. The method comprises the following steps: firstly, carrying out heat exchange on the exhaust gas, and reducing the temperature to 190 to 250DEG C; secondly, enabling the exhaust gas subjected to heat exchange to enter a quench zone, enabling the exhaust gas to be in contact with absorption liquid, and then carrying out adiabatic saturation absorption on the exhaust gas so as to reduce the temperature of the exhaust gas to 60 to 80DEG C; thirdly, enabling the exhaust gas exhausted from the quench zone to enter a first absorption zone, enabling the exhaust gas to be in contact with sprayed absorption liquid in a filler and absorbing sulfur dioxide in the exhaust gas by the absorption liquid; fourthly, enabling the exhaust gas exhausted from the first absorption zone to enter a second absorption zone, enabling the exhaust gas to be in countercurrent contact with the sprayed absorption liquid in the filler, and removing all remaining sulfur dioxide from the exhaust gas; fifthly, carrying out multistage washing on the exhaust gas exhausted from the second absorption zone, and removing a salt solution entrained in the exhaust gas; sixthly, removing droplets in the exhaust gas exhausted from a multistage washing zone and then discharging. The method disclosed by the invention has the advantages that the operation is simple, operation expenses are reduced, the occupied area is greatly reduced, and emission indexes can be far lower than the environmental protection standard level; the method is in the leading level of technology.
Owner:SINOPEC NANJING ENG & CONSTR +1

Infrared image cross grain removing processing method and processing device and storage device

The invention discloses an infrared image cross grain removing processing method and processing device, and a storage device. The infrared image cross grain removing processing method comprises the following steps: acquiring an airspace cross grain value of a current frame airspace basic image of a current frame infrared image, and subtracting the airspace cross grain value of the current frame airspace basic image from a pixel value of the current frame airspace basic image to obtain a current frame airspace cross grain-removed basic image; obtaining a current frame time domain basic image and a previous frame time domain basic image, and obtaining a time domain cross grain value of the current frame time domain basic image according to the current frame time domain basic image and the previous frame time domain basic image; and performing anti-pollution processing and dynamic and static weight processing, and subtracting the anti-pollution processing and dynamic and static weight processing time domain cross grain value of the current frame of time domain base image from the pixel value of the current frame of space domain cross grain-removed base image to obtain an output imageof the current frame of infrared image. According to the scheme, the output image can have good definition and has no smear.
Owner:浙江华感科技有限公司

Device for semi-dry desulfurization, dust removal and low-temperature denitration of coke oven flue gas and technological method thereof

The invention relates to a device for semi-dry desulfurization, dust removal and low-temperature denitration of coke oven flue gas and a technological method thereof, belongs to the technical field ofneed of flue gas purifying devices. The device comprises a coke oven, a semi-dry desulfurization tower, a bag-type dust remover, an SCR reactor, aninduced draft fan and a chimney which are sequentially connected through a flue, wherein a rotary atomizer is mounted on the top of the semi-dry desulfurization tower; a tower bottom ash discharging valve is mounted at a conical hopper of the semi-drydesulfurization tower; a screw conveyor is mounted at the bottom of the bag-type dust remover and is connected with an ash silo through a scraper conveyor and a bucket elevator; and an ash dischargingvalve is arranged on an ash hopper at the lower part of the ash silo. By a rotary spraying semi-dry desulfurization technology, no wastewater is discharged, desulfurization slag has a stable market channel, and an environmental protection problem is completely solved; during discharge, no white mist tailing phenomenon is caused; and the service life of a low-temperature catalyst is prolonged. Thedevice can be widely applied to occasions where the flue gas purifying devices are needed, and is especially applicable to the field of low-temperature denitrification, desulfurization and dust removal in the coke oven, a garbage incinerator, an industrial kiln and the like.
Owner:青岛天正洁能环保科技有限公司

Method for quickly detecting content of L-glutamine in fermentation liquor

The invention discloses a method for quickly detecting the content of L-glutamine in a fermentation liquor. The method comprises the following steps: (1) selecting a cultivation strain of glutamine for activating culture, and then transplanting the cultured strain to a fermentation medium for cultivation; (2) conducting oscillation and centrifugation on the fermentation liquor to obtain a liquid to be detected; (3) preparing a developing solvent, a color developing agent and an eluant; (4) drawing a standard curve; (5) utilizing the liquid to be detected obtained in step (2) for sample spotting on a thin silica gel plate, carrying out developing, color developing, elution and sampling, utilizing an ultraviolet-visible spectrophotometer to measure a light absorption value, and obtaining the value, corresponding to the light absorption value, on the standard curve drawn in step (4), wherein the value is the content of the L-glutamine in the fermentation liquor. The method can be used for detecting the content of the L-glutamine in the fermentation liquor quickly, and is high in accuracy, fast, simple, low in cost and high in timeliness.
Owner:HENAN JULONG BIOLOGICAL ENG CO LTD

Human mitochondrial genome methylation detection kit and application thereof

The invention relates to a human mitochondrial genome methylation detection kit and application thereof, wherein the kit comprises a PCR amplification kit, and the PCR amplification kit comprises 37 pairs of PCR amplification primers, and the nucleotide sequence of the 37 pairs of PCR amplification primers is shown as SEQ ID NO. 1 to SEQ ID NO. 74. The kit can meet actual work requirements on human mitochondrial genome methylation detection in the aspects of sensibility, accuracy, stability, amplification specificity, high flux, and the like.
Owner:HEBEI MEDICAL UNIVERSITY

Remote pathological diagnosis section digital image processing and transmission technology

The invention discloses a remote transmission method of a digital pathological section, which is suitable for being used among a section scanning terminal, a WEB server and a client which are remotelyconnected with one another through a network, and comprises the following steps: S1, the section scanning terminal acquires a current digital pathological section image through scanning; S2, in caseof urgent need, the section scanning terminal receives a request of the client and directly sends the digital pathological section image obtained by current scanning to the client; and S3, under a non-urgent need condition, the section scanning terminal uploads the digital pathological section image obtained by scanning to the WEB server in a backup manner, and then the WEB server sends the requested digital pathological section image to the client only after receiving the request of the client. The method can effectively solve the problem that in the prior art, the requirement that reports cannot be sent out within limited time during emergency treatment due to the fact that the time for uploading the remote pathological diagnosis slices to the network server is too long.
Owner:广州华银医学检验中心有限公司

Method for determining content of phthalic acid in benzoic acid by adopting high performance liquid chromatography

The invention discloses a method for determining content of phthalic acid in benzoic acid by adopting high performance liquid chromatography, and particularly relates to an analysis method for quantitatively analyzing the content of phthalic acid by adopting a methanol-buffer salt mixed solution system and an external standard method. The chromatographic conditions of the method are as that: a chromatographic column is Poroshell 120 EC-C18 with the specifications of 4.6 mm*150 mm and 4-Micron; a mobile phase is prepared from methanol and 0.03 mol / L buffer salt in a volume ratio of 20:80; a flow rate is 1 mL / min; a detection wavelength is 230 nm; a column temperature is 30 DEG C; and a sample injection volume is 20 mu L. The method has the advantages of simple sample treatment and analysisprocess, high analysis result precision, good reproducibility and the like.
Owner:湖北科林博伦新材料有限公司

Method for detecting enantiomer in vildagliptin midbody

InactiveCN106338564ASeparation detection is effectivePeak shape symmetryComponent separationEnantiomerColumn temperature
The invention discloses a method for detecting enantiomer in a vildagliptin midbody. The chromatographic conditions of the method are that a CHIRALPAK IC chromatographic column is adopted, the column temperature is 25-40 DEG C, the detection wavelength is 210nm, the mobile phase is a mixture of n-butyl alcohol, ethanol and diethylamine, and the flow velocity is 0.8-1.2mL / min. By adopting the method disclosed by the invention, quantitative analysis on the enantiomer (2R)-1-(2-chloracetyl)-2-pyrrolidine formonitrile in (2S)-1-(2-chloracetyl)-2-pyrrolidine formonitrile can be implemented, the enantiomer can be effectively separated and detected, peak patterns are in symmetry without trailing, aspects such as the separation degree, the specificity, the limit of quantitation, the detection limit, the linearity, the precision degree, the accuracy degree, the solution stability and the durability need to be specifically verified, various verification results meet requirements of related rules and guidance principles, and a good detection effect can be achieved.
Owner:海南欣莱医药科技股份有限公司

Method for harmlessly extracting Chinese sturgeon DNA

The invention relates to the field of bioengineering, in particular to a method for harmlessly extracting Chinese sturgeon DNA. The method includes the steps of obtaining a sample, processing the sample, conducting cell lysis, precipitating proteins, precipitating DNA, washing DNA and obtaining DNA. The complete method for extracting Chinese sturgeon mucus is established, Chinese sturgeon DNA can be rapidly and effectively extracted, extracted DNA stripes are clear and free of trailing, and it is shown that extracted DNA is high in quality and free of protein contamination and stable and reliable in result.
Owner:CHINESE STURGEON RES INST CHINA THREE GOR

A kind of blend copolymer gel with capillary self-coating effect and preparation method thereof

The invention discloses a blended copolymer gel with a capillary self-coating effect and a preparation method thereof. According to the preparation method, the blended copolymer gel is obtained by mixing a self-coating polymer with a screening polymer which polymerizes self-coating polymer monomers in a sol buffer. The blended copolymer gel prepared with the preparation method has a good separation capability and a capillary inner wall self-coating capability in the process of capillary electrophoresis, so the adsorption of the capillary inner wall to DNA molecules is effectively reduced, andthe service life of the capillary is increased.
Owner:INST OF FORENSIC SCI OF MIN OF PUBLIC SECURITY

Detection method of enantiomer in ivabradine hydrochloride intermediate and application

ActiveCN111220727ASeparation detection is effectivePeak shape symmetryComponent separationEnantiomerColumn temperature
The invention provides a detection method of an enantiomer in an ivabradine hydrochloride intermediate, and an application. The detection method comprises the following steps of respectively preparingto-be-detected sample solutions, and injecting the to-be-detected sample solutions into a high performance liquid chromatograph under the detection conditions that a chromatographic column is a CHIRALPAK IC chromatographic column, the column temperature is 25-40 DEG C, the detection wavelength is 280-290 nm, a mobile phase is a mixture of normal hexane, dichloromethane and diethylamine in a volume ratio of (76-80):(20-24):0.5, and the flow rate of the mobile phase is 0.8-1.2 mL / min. According to the detection method disclosed by the invention, the enantiomer in the ivabradine hydrochloride intermediate can be precisely and quantitatively analyzed, the peak pattern is symmetrical and a tailing phenomenon does not exist, factors such as a separation degree, a quantification limit, a detection limit, repeatability, precision and solution stability all meet related requirements, the detection limit can reach 0.0337 mu g / mL, and enantiomer higher than 0.01% in the ivabradine hydrochlorideintermediate can be detected.
Owner:HAINAN XINOPEN SOURCE MEDICAL TECH CO LTD

Photoelectric conversion device and image pick-up system using the photoelectric conversion device

In a photoelectric conversion device with a photoelectric conversion region for accumulating electric charges that correspond to incident light and an amplifying filed effect transistor into which a signal charge from the photoelectric conversion region is inputted, the photoelectric conversion region is surrounded by a potential barrier region (a selectively oxidized film and a channel stopper), a nick region (overflow channel) is formed in a part of the potential barrier region, and a drain region of the field effect transistor that has the same conductivity type as the photoelectric conversion region is placed next to the nick region. Thus excess carriers are prevented from flowing into adjacent pixels or other floating regions.
Owner:CANON KK

Landfill gas gas-collecting shaft construction method

The invention discloses a landfill gas gas-collecting shaft construction method, which adopts grabbing-bucket digging well method to dig the gas-collecting shaft, and the completed gas-collecting shaft has good permeability, and high gas-collecting efficiency. The grabbing-bucket is controlled through a steel rope, the length can be controlled; and the gas-collecting shaft with deep depth can be constructed according to needs, meanwhile, the control method can simplify the structure. Pebbles or gravels are poured into a gas-collecting vertical hole at the outside of a gas-collecting pipe to the top of the garbage layer, and the periphery of the gas-collecting shaft on the garbage layer is provided with bentonite, and the bentonite is tamped to form a sealing structure, accordingly, the efficiency can be further increased.
Owner:山高十方环保能源集团有限公司

Image shooting method and camera

The invention provides an image shooting method and a camera, and relates to the technical field of image processing, and the method comprises the steps: carrying out the light splitting of received composite light, and obtaining visible light and infrared light; receiving the visible light on a first image sensor, and acquiring a first image according to a first shutter speed; receiving the infrared light on a second image sensor, acquiring a second image according to a second shutter speed, and the first shutter speed is larger than the second shutter speed; and carrying out image fusion onthe first image and the second image which are obtained at the same time to obtain a target image. According to the method, under the condition of weak visible light, the infrared light which cannot be perceived by human eyes can be fully utilized, the brightness and definition of the obtained image are higher while the original color rendition is maintained, and more identifiable information is provided.
Owner:HANGZHOU HIKVISION DIGITAL TECH

A method for extract genomic DNA of Lonicera japonica Maxim

A method for extractING genomic DNA of Lonicera japonica Maxim belongs to field of molecular biology. The method mainly comprises the following steps: firstly, cell walls and cell membrane are brokenso that DNA is fully released into buff; secondly, the interference of protein, polysaccharide, pigment and other impurities was eliminated; finally, DNA degradation is prevented. The sample was treated with SET nucleus separation buffer, which could separate the nucleus from the secondary substances such as polysaccharides and polyphenols in the supernatant, PVP added in the grinding process andbeta-Mercaptoethanol, can effectively prevent the oxidation of polyphenols, chloroform / isoamyl alcohol extraction, the addition of diluted CTAB to remove polysaccharides. The leaves of Caprifoliaceaeplants are rich in carbohydrates and polyphenols, These substances not only affect the extraction of DNA, but also affect the activity of Tag enzyme in PCR. By this method, DNA with high yield and good quality can be obtained. DNA electrophoretic bands are clear and bright, and there is no tail-trailing phenomenon, which can meet the further research at molecular level.
Owner:NORTHEAST AGRICULTURAL UNIVERSITY

Method for measuring content of glycine betaine in fructus lycii

The invention discloses a method for measuring the content of glycine betaine in fructus lycii.At present, research on methods for measuring the content of glycine betaine in fructus lycii is increased; however, the methods have defects and disadvantages, the method for measuring the content of glycine betaine in fructus lycii overcomes defects of existing technologies and methods and is complete in extraction, easy and convenient to operate and capable of rapidly and accurately analyzing the content of glycine betaine in fructus lycii.The method mainly includes the steps that 1, a glycine betaine comparison product is extracted, methyl alcohol is added for dissolution, and a comparison product solution is obtained; 2, dried or fresh fructus lycii fruits are taken, a proper amount of liquid nitrogen is added to crush the fructus lycii fruits, methyl alcohol is added for supersonic extraction, and a ample solution is obtained; 3, measuring is conducted according to a high performance liquid chromatography-evaporation light scattering method, an octadecyl key and a silica gel packed column are adopted, the flowing phase is composed of methyl alcohol and water with the volume ratio of methyl alcohol to water being 20: 80, flow velocity is 1 ml / min, the drift tube temperature is 40 DEG C, the atomization temperature is 40 DEG C, the comparison product and the sample solution are taken and fed, and corresponding chromatograph charts are obtained; 4, the chromatograph charts and peak areas corresponding to the comparison product and the sample solution are recorded, the content of the glycine betaine is calculated in a quantitative mode with an external standard method, and the process is completed.
Owner:NINGXIA ACADEMY OF AGRI & FORESTRY SCI

Content detecting and control method of epalrestat tablets

The invention discloses a content detecting and control method of epalrestat tablets, according to the method, high-performance liquid chromatography is used for detecting the epalrestat tablets. Analytical conditions such as an optimal internal standard compound, mobile phase composition, an elution program, elution flow velocity, a detecting wavelength and a chromatographic column are optimized through a large number of experiments. Many times of experimental verification indicates that the content detecting and control method of the epalrestat tablets is good in stability and repeatability, high in analysis efficiency, good in resolution and capable of detecting epalrestat sensitively and accurately in a qualitative and quantitative mode, so that the quality of the epalrestat tablets can be evaluated objectively, comprehensively and accurately, and the content detecting and control method of the epalrestat tablets is of great significance in controlling of the quality of the epalrestat tablets and ensuring of clinical effects.
Owner:YANGTZE RIVER PHARM GRP NANJING HAILING PHARM CO LTD

Battery electrode coating device

The invention discloses a battery electrode coating device which comprises a coating roll, a backup roll, a conveyor belt group, a driver, and a plurality of driven shafts provided with driven wheels, wherein the driver is equipped with a main driving shaft sleeved with a driving wheel; the conveyor belt group is mounted on the driving wheel and the driven wheels in a sleeving manner and passes through the coating roll and the backup roll to form a closed circulation loop; at least one spacer isolation belt is fixedly mounted between the conveyor belt group which comprises two conveyor belts parallelly arranged at an interval; the spacer isolation belt spans and is mounted on the two conveyor belts in a direction perpendicular to the two conveyor belts; and each conveyor belts is mounted on the corresponding driven wheels and the driving wheel in a sleeving manner. The battery electrode coating device is wide in application range and can be applied to various types of coating equipment, automatic spacing is achieved, scraping is not needed, the efficiency is high, the coating thickness is uniform, and phenomena such as trailing and the like can be avoided.
Owner:LANS INTELLIGENT ROBOT CHANGSHA CO LTD
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