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56 results about "Routine analysis" patented technology

Method for rapid measuring allantoin content in yam using near infrared spectrum

The invention relates to a method for quickly measuring the allantoin content in yam with near infrared spectrum, and the method can effectively solve the problems of fast measure of the allantoin content in the yam and improved productivity effect. The method includes the steps that: firstly, a straightening mould is built, a yam sample is collected to be used as a sample collection, a near infrared spectrogram for straightening the sample collection is obtained through scanning, the obtained spectroscopic data are performed pretreatment of spectrum, then the analysis result of a routine analysis-high performance liquid chromatography is adopted as a reference value, a least square method in the stoichiometry is applied to build the straightening mould between a yam medicinal herb spectrum and the allantoin content inside therein, the allantoin content in the yam is obtained through the measure of the straightening mould, the input of the spectroscopic data is realized by a computer and the soft thereof, the whole process has short time, fast speed and nicety, measures on line, improves the productive effect and saves a large number of manpower and material resources, is an innovation for measuring the allantoin content in the yam, and has huge economic and social benefit.
Owner:HENAN UNIV OF CHINESE MEDICINE

In situ quantitative determination method for large-sized metallic inclusion

The invention relates to a method for quantitatively determining inclusion in large-scale metal at original position, which belongs to the field of steel determination and analysis technology. The method comprises the following steps of: respectively intercepting a cross section with a length of 100 to 500 mm for continuous casting slab, bar material, H-shaped steel or plate material, longitudinally intercepting a sample with a width of 10 to 20 mm from the surface to the core portion, cleaning the surface of the steel sample, applying a resin adhesive layer except for the original surface of the steel, electrolyzing the sample for 4 to 10 times until the portion of the sample in the electrolyte is completely electrolyzed, and subjecting inclusions collected by each electrolysis step and the each electrolyzed sample layer to routine analysis by using a microscope, an original position analyzer and a spectrometer. Since the sample and the electrolyzed steel material is an integral sample from the surface to the core portion, the method can determine the change of inclusions and precipitates from the surface to the core portion of the steel sample, thus factually representing the distribution of inclusions and precipitates in large-scale metal.
Owner:SHANDONG IRON & STEEL CO LTD

Hollow-fiber-film-coated molecular imprinting integral adsorption rod, as well as preparation method and application thereof

The invention claims a hollow-fiber-film-coated molecular imprinting integral adsorption rod, as well as a preparation method and an application thereof. According to the invention, an atrazine molecular imprinting capillary integral extraction head is prepared by using a way of in-situ microwave polymerization in a capillary; the imprinting integral extraction head is coated by using a hollow fiber film and then is used as a solid phase micro-extraction head; by combining a hollow fiver film extraction technology and a high performance liquid chromatography, parameters affecting the extracting efficiency are optimized, such as extraction and analysis solvents, salt concentrations and pH values, extraction and analyzing time, stirring speed and the like; two analysis methods capable of directly extracting triazine herbicides in an environmental water sample are established. The standard recovery rates of detected four triazine herbicide substances are greater than 80% under the optimized experiment conditions. According to the invention, a detection method in which hollow-fiber-film-coated molecular imprinting polymer integral column micro-extraction and an HPLC (High Performance Liquid Chromatography) are combined is established; the detection method has the advantages of simplicity, rapidity, high sensitivity and the like and is suitable for the routine analysis of the water samples.
Owner:HENAN INST OF SCI & TECH

Method for determining tobacco-specific nitrosamines in cigarette mainstream smoke by employing online two-dimensional chromatography-tandem mass spectrometry

The invention provides a method for determining tobacco-specific nitrosamines in cigarette mainstream smoke by employing online two-dimensional chromatography-tandem mass spectrometry. The method comprises the steps of capturing and extracting cigarette mainstream smoke and then obtaining a sample solution; and carrying out qualitative and quantitative analysis on a nitrosamine component in the sample solution by adopting ultrahigh performance bonded-phased chromatography-liquid chromatography-mass spectrometry (UPCC-HPLC-MS / MS). The invention further provides an online two-dimensional chromatography-tandem mass spectrometry system for the tobacco-specific nitrosamines in the cigarette mainstream smoke and an application method of the online two-dimensional chromatography-tandem mass spectrometry system. The method for determining the tobacco-specific nitrosamines in the cigarette mainstream smoke by employing the online two-dimensional chromatography-tandem mass spectrometry providedby the invention has the advantages of being simple in operation, fast in detection and high in sensitivity and is suitable for routine analysis and detection of the tobacco-specific nitrosamines in the cigarette mainstream smoke, especially accurate quantification of traces of nitrosamines in medium and thin cigarette smoke samples.
Owner:SHANGHAI TOBACCO GRP CO LTD

Method for rapidly determining content of quality indexes of red ginseng by using near infrared diffuse reflection spectrum

InactiveCN105181637ASolve the problem of insufficient representativeness of sampling inspectionQuality assuranceMaterial analysis by optical meansReflection spectroscopyInfrared
The invention discloses a method for rapidly determining the respective content of water, carbohydrate components and ginsenoside of red ginseng by using a near infrared diffuse reflection spectrum. The method comprises the following steps: carrying out a routine analysis process to obtain the references of all quality control index components in red ginseng samples and obtain near infrared spectrum data of all red ginseng powder samples, carrying out mathematical modeling to make all the routine analysis references of the index components and the near infrared spectrum data compose a database, and carrying out modeling optimization by using a full factor test analysis process to respectively obtain quantitative correction models of all the indexes; and collecting the near infrared spectrum of an unknown red ginseng powder sample, and determining the content of every index component by using the quantitative correction models. The method has the characteristics of rapid and simple analysis, no pollution in the analysis process, and simultaneous determination of various index components, and allows whether sugar is added or not to be rapidly discriminated especially through determining the carbohydrate components in order to maximally guarantee the quality of the red ginseng.
Owner:CHIATAI QINGCHUNBAO PHARMA

Intensivism system for supervisory and administration of mobile operator service

The invention provides an intensification system for mobile operator service supervision and management, which comprises a data generating module, a data converting module, a data processing module and a data applying module, wherein the data generating module comprises a business and internal system data generating module and a surveying and monitoring data generating module, and is used for generating various service supervision data; the data converting module acquires various data from the data generating module, converts the data into a uniform format, and stores the data in a database of the data processing module; the data processing module comprises a database, a central treatment server and a data mining and analyzing platform based on the central treatment server, wherein the central treatment server is used for transferring data from the database according to the request of the inquiry terminal and the routine analysis terminal of the data mining and analyzing platform and the data applying module; and the data applying module comprises the inquiry terminal and the prior analysis terminal connected with the server. When a mobile network operator serves a customer, the system can acquire relevant data about various service posts, perform uniform analysis and treatment, improve decision-making accuracy and greatly improve management efficiency.
Owner:CHINA MOBILE GRP FUJIAN CO LTD

Blood routine analyzer detecting head

The invention provides a detector head technical proposal used for a blood routine analysis meter for blood analysis. In the proposal, a blood expanding machine is arranged on a base; a light source support is arranged on the base on one side of the blood expanding machine and a collector support is arranged on the base on the other side of the blood expanding machine; three monochromatic sources which obliquely face to an upper plane on the blood expanding machine are fixed on the light source support, and an image collector is fixed on the collector support; the front end of the image acquisition unit is provided with an image acquiring lens; a cut-off filter is arranged on the rear of the image acquiring lens; a photoelectric coupler is arranged on the rear of the cut-off filter; a digital processor is connected to the rear of the photoelectric coupler; a USB interface is connected to the rear of the digital processor; the image acquiring lens is required to face to reflected light of the three monochromatic sources on the blood expanding machine; white light sources are arranged on the rear of the three monochromatic sources and the front end of the white light sources is provided with a rear optical collector; a diaphragm is arranged in front of the rear optical collector; a colordisc is arranged in front of the diaphragm; and a front optical collector is arranged in front of the colordisc.
Owner:姜洪涛

Microfluidic paper chip array, preparation method and application thereof

ActiveCN108956598AReduce centrifugationOvercome the shortcomings of inaccurate single indicator detectionMaterial analysis by observing effect on chemical indicatorSingle indicatorRoom temperature
The invention discloses a microfluidic paper chip array. The microfluidic paper chip array comprises a paper chip array composed of a plurality of independent paper chips; each independent paper chipcomprises a flow separation area, a sampling pond and a developing pond; the flow separation area is made of a single-channel paper chip; the sampling pond and the developing pond are made of circularpaper chips located on the two ends of the flow separation area; the developing pond is acquired by dropwise adding different color developing agents and then drying under room temperature; the colordeveloping agents are selected from one or more of methyl red, neutral red, bromcresol purple, zinc porphyrin and cobalt porphyrin. The invention also discloses a preparation method for the microfluidic paper chip array and an application thereof. The invention fully utilizes the characteristic of the paper chip having a separating function to reduce a separating link in routine analysis and overcome the defect of inaccuracy of single index detection. The microfluidic paper chip array is high in detection sensitivity, can achieve an accurate result and requires no advanced instrument and equipment, so that the microfluidic paper chip array is suitable for a majority of people to use.
Owner:JIANGSU HENGSHUN VINEGAR IND

CRH train engineer operation information vehicle-mounted acquisition method and device

The invention relates to a CRH train engineer operation information vehicle-mounted acquisition method and a CRH train engineer operation information vehicle-mounted acquisition device, and provides acquisition, processing and interaction of an expanded information source relating to engineer operation information, moreover, the train number information is provided to a CRH train electronic tag vehicle-mounted programming unit, and the function of safely dumping data in EOAS (Engineer Operation Analysis System) vehicle-mounted equipment is realized. The invention adopts the scheme as follows: a vehicle-mounted host comprises a vehicle-mounted data processing module, a vehicle-mounted DMS (Database Management System) communication module, a vehicle-mounted dumping device communication module, a vehicle-mounted CIR receiving module, a vehicle-mounted WTD communication module, a vehicle-mounted DTAG sending module, a CPM safe storage module, a BATT module and a power module; the EOAS host acquires a DC110V power supply by being connected with a CRH train power interface, various information acquisition modules acquires a working power supply from the power module in the host, data interaction is conducted through a high-speed communication bus and a CPU master control unit, then the information of the vehicle-mounted data is acquired and processed, and a local storage unit stores the important operating data record; the routine analysis data are transmitted to the data pumping device in an engineer cab through a DUMP plugboard, the data are stored in a dumping card through the data pumping device, so that the off-duty data are analyzed by a driver and a conductor of a public vehicle.
Owner:HENAN LANXIN TECH

Quinolones and sulfonamides residue containing eel matrix standard sample and preparation method thereof

The invention belongs to the field of analytical chemistry and in particular relates to a quinolones and sulfonamides residue containing eel matrix standard sample and a preparation method thereof. Enrofloxacin, ciprofloxacin, norfloxacin, ofloxacin, oxolinic acid, flumequine, sulfadimidine and sulfamonomethoxine are administrated into an eel culture pond in a splashing manner; stopping drugs after administrating on the second day, cleaning the pond, changing into clean water for cultivation; taking the eels out after administrating on the fifth day, slaughtering, removing heads, bloodletting, removing internal organs and fish skins and cryo-preserving in an ice tank at below 18 DEG C; and then carrying out irradiation treatment for prolonging the storage life of the sample. The matrix standard sample has good uniformity and good stability, can be stored easily, and can be used conveniently, the sampling amount and the extraction and purification methods are the same as those of the routine analysis sample, the detection data is reliable and accurate even if at different environment temperature at different times by different detectors, and the matrix standard sample can be used as a quality control measure in the detection work and has application and promotion values.
Owner:INSPECTION & QUARANTINE TECH CENT OF FUJIAN ENTRY EXIT INSPECTION & QUARANTINE BUREAU
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