62 results about "Liquid phase" patented technology

The invention discloses a serum specificity metabolite spectrum for a patient with a lung cancer and a building method thereof, and particularly discloses a method for carrying out liquid-phase/gas-phase chromatography mass spectrometry metabonomics analysis based on the patient suffering from the lung cancer. The method comprises the following steps: collecting fasting blood samples of a healthy and normal detected person and the patient suffering from the lung cancer 7 days before and after an operation, separating by a chromatogram column after processing; extracting and aligning original data of an instrument after adopting mass spectrometry analysis; building a mathematical model to analyze the metabolites spectrum by adopting multivariable data statistical software; comparing with the difference between an average person with the metabolites spectrum of the patient with the lung cancer, so as to determine the specificity metabolite spectrum. By adopting the method disclosed by the invention, the mutation status of the metabolite of the patient with the lung cancer can be generally and comprehensively reflected, and the serum specificity metabolite spectrum can be applied to early diagnosis of the lung cancer or a beneficial technical support is supplied for prognosis.

Provided is an auto-thermal evaporative liquid-phase synthesis method for cathode material for battery, comprising the following steps: (1) Adding a synthetic raw material of cathode material into a solvent to obtain a mixture A, the synthetic raw material of the cathode material containing lithium source, adding an accelerant into the mixture A, which makes the mixture A achieve a strong auto-thermal reaction to release heat to evaporate the solvent, and obtaining a solid precursor of the cathode material; (2) Drying the precursor, sintering in an atmosphere furnace and obtaining the cathode material. The method is simple in process, low in energy consumption, requirements for equipment and cost, and is applicable to industrial mass production and application. The cathode material obtained through the method is stability in batch, easy to process, low in internal resistance and high in capacity and has an excellent charging and discharging performance.

The invention relates to a rapid center control testing method of Xingnaojing injection. The rapid center control testing method comprises the following steps of: (1) acquiring samples of primary distillate and secondary distillate in the preparation process of the Xingnaojing injection of different batches; (2) testing the areas of the curcuma zedoary diketone, the curcumenol and the Germacrone in the distillate samples and the total liquid phase peak areas by using a liquid chromatographic method, and testing the muscone peak areas in the distillate samples by using a gas chromatographic method; (3) acquiring near infrared spectrum data of the distillate samples; (4) constructing a model; and (5) testing the content of the curcuma zedoary diketone, the curcumenol, the Germacrone and the muscone in unknown distillate samples.

The invention relates to a thermal storage type vacuum tube which comprises a tubular glass outer shell, an open end of the glass outer shell is connected with a glass flange, the glass flange is connected with a metal end cover through the hot-pressing sealing technology, a protective cap of an exhaust nozzle is arranged at the other end of the glass outer shell, an exhaust nozzle which is integrally molded with the glass outer shell is arranged in the protective cap of the exhaust nozzle, a metal material box body is arranged in the glass outer shell, a solar energy selective coating is arranged on the outer surface of the box body, space between the glass outer shell and the box body is pumped into vacuum state through the exhaust nozzle, a water inlet and a water outlet are respectively formed on the metal end cover, the water inlet and the water outlet are communicated through a heat exchange tube arranged in the box body, and a working medium in the box body adopts solid-liquid phase change materials with phase change temperature of 60DEG C-80DEG C. The working medium in the box body adopts the solid-liquid phase change materials, when the solid-liquid phase change materialsachieve the phase change point, the materials are converted to liquid state from solid state, and a large amount of heat is absorbed, and the temperature of the phase change materials can be basicallymaintained constant. The thermal storage type vacuum tube can be widely applied in a variety of solar water heaters.

The invention discloses a rapid and high efficiency chlorogenic acid and galuteolin in honeysuckle flower extraction method and a HPLC quantitative analysis method, and which comprise the following steps: superhigh pressure extraction and quantitative analysis. Superhigh pressure extraction comprises the steps as follows: firstly crushing dried honeysuckle flower and filtering by a sieve with 60-80 meshes, adding water or ethanol, methanol and n butanol organic solvent into the honeysuckle flower powder according to 1:10-1:100 solid liquid ratio, mixing and sealing, immersing at normal temperature, placing the mixture into a high pressure container, leaching with pressure at 20-60 DEG C. for 1-5 min, relieving pressure, carrying out centrifugation of extract product and obtaining the honeysuckle flower extract. Quantitative analysis: after centrifugation, diluting 2ml of the obtained supernatant to 10 ml with distilled water in a volumetric flask, refrigerating for standby. The chlorogenic acid and galuteolin in honeysuckle flower are extracted by a superhigh pressure technology and are carried out by a content determination, and the invention has the characteristics of high recovery rate, short extraction time, small solvent amount, simple operation, accuracy, good repeatability, no pollution, safety, low energy consumption, etc.

The technology of the present application is directed to methods and kits for detecting and quantifying a non-polar analyte in a plant-derived sample. The technology uses a simple extraction, e.g., a liquid-liquid extraction (LLE) or solid-phase extraction (SPE), to enrich a sample for a non-polar analyte of interest and to remove contaminants. After the extraction and clean-up steps, liquid chromatography and mass spectrometry are used to detect the non-polar analyte. In one embodiment, acequinocyl and/or its derivatives is analyzed using liquid chromatography and tandem mass spectrometry (LC-MS/MS) and the improved LC-MS/MS conditions allows detection limits of acequinocyl and/or its derivatives of 50 ppb or less.

The invention provides metal glass micron foil and a preparation method thereof. The preparation method comprises the steps that metal and a metal glass plate or strip are overlapped; an overlapped material is heated till the temperature reaches the metal glass supercooled liquid phase region which is between the glass transition temperature Tg and the crystallization temperature Tx; and then rolling calendaring is conducted, and the metal glass foil with the micron-scale thickness, namely the metal glass micron foil, is obtained. According to the preparation method, the metal glass foil can be quickly prepared on a large scale, the cost is low, and operation is easy and convenient; and the metal glass micron foil prepared through the method has utilization potentiality in the fields suchas sensors, sewage treatment, electronic skins, flexible smart wear, electromagnetic shielding, radiation resistance, catalyzing and composite materials.

An internal combustion engine is provided in which the temperature of an exhaust gas gradually decreases from its upstream side to its downstream side, and the temperature of a working medium of a heat exchanger, which flows in the opposite direction to the exhaust gas, gradually increases from its upstream side to its downstream side. The temperature difference between the exhaust gas temperature and the working medium temperature is the smallest at the interface between a liquid phase region and a two-phase region of the working medium, and since a catalyst device is incorporated at the upstream side, relative to the flow of exhaust gas, of the vicinity of the position where the temperature difference is the smallest, it is therefore possible for the heat exchanger to utilize the heat generated by the catalyst device effectively. Since the catalyst device is disposed in the two-phase region of the working medium, in which the temperature is constant, and this constant temperature is a temperature at which the catalyst is active, the catalyst can exhibit a stable exhaust gas purification performance.

This invention discloses one kind of vertically and multi-layer producing spore's case , including the transparent case body (1), the case body (1) consists of the case door (7) that can be opened; One that is in case body (1) consist of at least two supplies dish (4) inside, case body (1) also consist of separately not well versed inning at least enter each and at least break up each by hole (5) not wet for hole (2) not wet for case body (l). This invention still uses above-mentioned vertical a multi-layer a kind of high purity spore powder production technology of producing spore's case publicly , including liquid phase ferment, making fermented host, making and inoculating the supplies , two stage types to ferment and produce spores , air dried treatment step. Producing spore's case vertically and multi-layer of this invention is of simple structure: High purity sub powder production technology that invent, simple technological process have, stop miscellaneous fungus pollute, do not pollute the environment, and high benefit produce high spore powder of purity.

The invention discloses a self-driven Schottky junction near-infrared photoelectric detector based on a silicone nanowire array and a preparation method of the photoelectric detector.The preparation method is characterized in that the silicone nanowire array is formed on the surface of a silicon substrate through a silver-assisted chemical etching method; the outer surfaces of silicone nanowires are evenly covered with metal copper films through a liquid phase reduction reaction, and Schottky junctions are formed by the metal copper films and the silicone nanowires; the back face of the silicone substrate is coated with an In/Ga conductive glue layer in a brushed mode, and the In/Ga conductive glue layer and the silicone substrate are in ohmic contact.According to the Schottky junction near-infrared photoelectric detector, the preparation process is simple and easy to carry out, and the performance of the detector is excellent.

The invention discloses a chromium-based functional nucleic acid sensor and an application thereof in the technical field of metal ion detection. The sensor comprises a molecule recognition element, asignal amplification element and a signal conversion element, wherein the molecule recognition element comprises chromium ion deoxyribozyme consisting of a substrate chain and an enzyme chain; the signal amplification element comprises an isothermal amplification system and hemin, and the isothermal amplification system comprises an amplification template; the signal conversion element comprisesa color developing agent. The sensor is based on the chromium ion deoxyribozyme, an isothermal index amplification reaction and a G-quadruplex liquid phase sensing technology, is convenient, quick, high in sensitivity, high in specificity and resistant to high salinity in chromium ion detection and can be used in field detection of chromium ions in the environment.

The invention relates to a method for preparing methyl formate and coproducing dimethyl ether. The method comprises the steps: enabling raw materials, which contain formaldehyde and methanol, to enter a first reaction zone and be in contact with a catalyst A, carrying out separating so as to obtain a component I, enabling the component I to enter a second reaction zone and be in contact with a catalyst B, and then, carrying out separating so as to obtain methyl formate which serves as a product, dimethyl ether and a component II; taking at least 1% of the dimethyl ether as a product, and returning the rest dimethyl ether to the first reaction zone as circulating dimethyl ether; and returning the component II to the second reaction zone. In the raw materials, the ratio of the formaldehyde to the methanol (by mole numbers of carbon atoms contained by each ingredient) is 1: (0.05 to 4); the WHSV of the formaldehyde in the raw materials is 0.01/h to 15.0/h; the interior temperature of the first reaction zone is 50 DEG C to 100 DEG C; the interior temperature of the second reaction zone is 50 DEG C to 200 DEG C; the pressure is 0.1 to 10Mpa; and each ingredient is of a gas phase and/or a liquid phase independently. According to the method, the life of a catalyst is long, the reaction conditions are mild, the utilization ratio of the raw materials is high, and continuous production can be achieved, so that the method has large-scale industrialized application potential.

The invention provides a device for flue gas desulfurization through a soda ash method. The device is characterized in that the device comprises a pretreating system used for dissolving SO2 in liquid-phase water, a desulfurization tower, a technological water delivering system, a sodium carbonate preparing system used for providing alkali liquor, and an oxidation cycle system used for oxidizing sodium sulfite; a chimney is arranged at the top of the desulfurization tower, a demister is arranged on the lower part of the chimney, the desulfurization tower is connected with the technological water delivering system and the sodium carbonate preparing system, a tower kettle side wall gas-liquid inlet is formed in the tower kettle position of the desulfurization tower, a washing liquid outlet isformed in the bottom of the desulfurization tower, and the washing liquid outlet is connected with the tower kettle side wall gas-liquid inlet through the oxidation cycle system; and the pretreatingsystem is a Venturi pretreating system or an empty tower spraying pretreating system. According to the device, the alkali using cost is obviously lowered, safety and stability of a desulfurization technique are achieved, economical efficiency is achieved, and the device is suitable for application and promotion.

The invention specifically relates to a method for estimating in-vitro detoxification effect of a mycotoxin detoxification agent by using liquid chromatography, belonging to the technical field of biological detection. The method comprises the following steps: (1) early stage preparation: I, drafting of a standard curve of mycotoxin; II, preparation of a sample of the detoxification agent; and III, acquisition of a reaction medium; (2) detoxification: I, evaluation of in-vitro adsorption detoxification; and II, evaluation of simulated in-vivo adsorption detoxification; and (3) liquid chromatographic detection. The method for estimating in-vitro detoxification effect of the mycotoxin detoxification agent by using liquid chromatography can simulate gastrointestinal environments, adopts supernatant of chyme in the alimentary canal of an animal as a reaction medium, completely reproduce the gastrointestinal environment in the animal and more authentically evaluate the adsorption effect of an adsorbent.

The invention provides a method for detecting polar phenol type chlorinated/brominated disinfection by-products in water. The method comprises steps as follows: 1) standard working solutions of 13 polar phenol type chlorinated/brominated disinfection by-products required to be detected are prepared; 2) a to-be-detected water sample is acidized, salted out, subjected to continuous liquid-liquid extraction, separated, concentrated, filtered and pretreated in other modes; 3) analysis is performed by means of a UPLC/ESI-tqMS (ultra-high performance liquid chromatography/electrospray ionization-triple quadrupole mass spectrometer): mass spectrum parameters, liquid chromatography parameters and gradient elution process parameters of the UPLC/ESI-tqMS are established; 4) a calibration curve is drawn and the concentration is calculated after a chromatographic peak of a chromatogram sample is preliminarily determined to be identical to that of a known standard substance and the chromatogram sample and the known standard substance are the same substance. The detection method is high in sensitivity, precision and accuracy, can achieve the purpose of rapidly and efficiently measuring the 13 polar phenol type chlorinated/brominated disinfection by-products in the water, particularly can rapidly and efficiently detect a trace quantity of polar phenol type chlorinated/brominated disinfection by-products in the water, and has relatively high practical value.

The invention discloses a coal tar all-fraction liquid-phase hydrogenation system and method. The system comprises a liquid-phase reactor and a hydrogen dissolver, wherein an inlet of the hydrogen dissolver is connected with a coal tar pretreatment device and a hydrogen conveyor; an outlet of the hydrogen dissolver is connected to a lower end inlet of liquid-phase reactor; a reaction generation product outlet on the top end of the liquid-phase reactor is connected with a hot high-pressure separator; one outlet of the hot high-pressure separator is connected with a lower end inlet of the liquid-phase reactor through a circulating pump; the liquid-phase reactor comprises a liquid-phase reactor wall, hydrogen supplementing devices and a plurality of catalyst bed layers; the plurality of catalyst bed layers are arranged inside the liquid-phase reactor from bottom to top; and each hydrogen supplementing device is arranged between every two adjacent catalyst bed layers and communicated with the hydrogen conveyor. The coal tar all-fraction liquid-phase hydrogenation system and method have the advantages of reasonable design, reliable technical process and stable safety performance, greatly enhance the inner space utilization ratio of the liquid-phase reactor, reduce the equipment investment, and effectively enhance the reaction product yield.

The invention discloses a technology for producing potassium sulphate by a liquid-phase grouting method. The technology comprises the steps of adopting concentrated sulfuric acid or dilute sulphuric acid and industry waste acid and potassium chloride as a raw material; carrying out double decomposition reaction on sulfuric acid and potassium chloride in a liquid phase; producing potassium sulphate through concentrating and grouting processes, cooling the potassium sulphate, and simultaneously neutralizing a free acid by adopting calcium carbonate powder; and finally obtaining agricultural potassium sulphate meeting the GB20406-2006 standard. The potassium chloride is high in conversion rate and short in reaction time, and a potassium sulphate product is high in quality. Furthermore, the disadvantages of serious corrosion and high energy consumption of a Mannheim method are overcome; and the problems that other double decomposition methods are complicated in potassium sulphate production procedure and the product is low in quality are solved.

The present invention discloses a method for preparing cyclohexanone through a cyclohexane liquid-phase oxidation method. According to the method, alcohol ketone from a cyclohexane oxidation reaction sequentially passes through a first rectification tower so as to separate the cyclohexanone product, and passes through a second rectification tower and a third rectification tower so as to separate cyclohexanol, the separated cyclohexanol is added into a dehydrogenation reactor through an alcohol groove to carry out a dehydrogenation reaction, the reaction product from the dehydrogenation reactor sequentially enters a fourth rectification tower so as to separate the component containing the carbon number of less than 6, and enters a fifth rectification tower so as to separate the cyclohexanone product, the tower kettle liquid of the fifth rectification tower is recycled as the feeding material of the second rectification tower, and a light component separation device is arranged after the fifth rectification tower, such that the raw material containing the high light component content is removed in the light component separation device in advance so as to reduce the light component content in the cyclohexanol. The method of the present invention has advantages of simple process, low cost and good light component separation effect.

The invention relates to a solid transparent pen refill. The pen refill is prepared by reacting basic oil, aliphatic organic acid and sodium hydroxide solution for saponifying and generating sodium salt, adding a mixture of glycerin, ethanol, a dye and silicon dioxide, dissolving, mixing, cooling and moulding, and comprises the following components in part by weight: 15 to 25 parts of basic oil, 40 to 60 parts of aliphatic organic acid, 5 to 15 parts of sodium hydroxide solution, 3 to 10 parts of glycerin, 10 to 20 parts of ethanol, 0.1 to 1 part of dye and 1 to 10 parts of silicon dioxide, wherein the solubility of the sodium hydroxide solution is 30 to 50 percent, the concentration of the ethanol is over 90 percent, and the silicon dioxide is gas phase silicon dioxide or liquid phase silicon dioxide. The pen refill has the advantage of low cost and is convenient to process, and a water-soluble dye and a water-soluble fluorescent dye of the pen refill can be fully mixed with various components to make the color uniform; and the formed pen refill is smooth during writing, and has high pen feel and transparency, pigments cannot be diffused on a paper surface, and sediments cannot be adhered to the paper surface.

The invention discloses a new method for extracting plant essential oil by an aqueous enzymatic method. The new method comprises the following steps: (a) selecting berries, roots, stems or leaves of allspice, weighing and then cleaning; (b) crushing allspice plant tissues to be 50-70 meshes, and sieving; (c) adding a certain amount of mixed enzyme into the crushed plant tissues to carry out hydrolysis for 18-30 hours at the temperature of 2-8 DEG C, wherein the mixed enzyme is a mixture of cellulase, hemicellulase, pectinase and protease; (d) after enzymolysis is finished, carrying out separation on solid and liquid, wherein the liquid phase is a mixture of oil and water; further concentrating the liquid phase for 8-15 hours and separating to obtain allspice oil. The new method disclosed by the invention has the beneficial effects that the prepared allspice oil is high in purity, the utilization rate of raw materials is high, the production cost is reduced, and the industrial needs arefully met, so that the application prospect is wide.

The invention discloses a pouring method of an aluminum alloy thin-walled workpiece. The pouring method includes the following operating steps that 1, a silica sol shell with a surface shell, two back layers and a sealing layer is selected, wherein the thickness of the shell ranges from 3 mm to 5 mm; 2, the shell is subjected to ultrasonic treatment, then dry and hot air is adopted for air blowing, and the shell is preheated; 3, aluminum alloy liquid is poured, the pouring temperature is 30-50 DEG C added on an aluminum alloy liquid phase line, the pouring speed meets a Kalgin formula, a pressure pouring method is adopted, and the pressure in a pouring tank ranges from 2.3 MPa to 2.5 MPa. By the adoption of the casting method, the roughness of the surface of the aluminum alloy thin-walled workpiece can be effectively reduced, the reject rate can be reduced, and the quality and production efficiency of the aluminum alloy thin-walled workpiece are greatly improved.

The invention belongs to the field of medicinal chemical synthesis and in particular relates to a method for preparing 4-amino-2,6-dihydroxypyrimidine by virtue of a dry frying process. The method forpreparing 4-amino-2,6-dihydroxypyrimidine by virtue of the dry frying process comprises the following concrete steps: by taking sodium methoxide dry powder, urea and methyl cyanoacetate as raw materials, reacting under certain conditions, heating at a certain temperature, steaming out generated methanol, and finally generating 4-amino-2,6-dihydroxypyrimidine. According to the invention, yield of4-aminopyrimidine obtained through cyclization reaction can reach 80-85%, and product purity is more than 99%. Compared with a liquid-phase cyclization method, the method provided by the invention hasthe advantages that reaction yield can be improved by more than 15%, reaction period is reduced to be 2-3 hours from the original more than 8 hours, and no water methanol is produced, so that pollution of organic wastewater is greatly reduced, preparation cost and energy consumption of 4-amino-2,6-dihydroxypyrimidine are greatly reduced, and the method provided by the invention is hopeful to being applied to industrial production.