Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

265 results about "Environmental analysis" patented technology

Environmental analysis is the use of analytical chemistry and other techniques to study the environment. The purpose of this is commonly to monitor and study levels of pollutants in the atmosphere, rivers and other specific settings. Other environmental analysis techniques include biological surveys or biosurvey, soil analysis or soil test, vegetation surveys and tree identification, and remote sensing which uses satellite imagery to assess the environment on different spatial scales.

Safety vehicle distance alarming system based on road environment

The invention discloses a safety vehicle distance alarming system based on the road environment. The safety vehicle distance alarming system comprises a weather condition detection module, an image acquisition module, an environmental analysis module, a vehicle speed detection module, a vehicle distance detection module, a control module and an alarming module. The environmental analysis module isconnected with the weather condition detection module and the image acquisition module to judge the road surface where a vehicle travels. The control module is connected with the vehicle speed detection module, the environmental analysis module and the vehicle distance detection module and calculates the relation between the theory safe vehicle distance and the actual vehicle distance according to the received vehicle speed, the vehicle distance and the road surface condition, and if the theory safe vehicle distance is larger than the actual vehicle distance, the control module sends an alarming signal to the alarming module. The road surface where the vehicle travels is detected, the relation between the theory safe vehicle distance and the actual vehicle distance is combined, then alarmreminding is conducted, the road surface environment of vehicle actual travelling is fully considered, the characteristics of fast detection speed and alarming sensitivity are achieved, traffic accidents are reduced, and safety of vehicle driving is improved.
Owner:安徽实运信息科技有限责任公司

Preparation method for molecularly imprinted monolithic column solid-phase microextraction fiber

The invention relates to molecularly imprinted monolithic column solid-phase microextraction fiber and a preparation method, and belongs to the technical field of pretreatment of samples for analytical chemistry. The fiber is composed of graphene and a molecular imprinted polymer; one end of the fiber is fixed on a quartz capillary; and the other end of the fiber is exposed out of the quartz capillary. In preparation, a quartz capillary is inserted into a prepolymer solution containing graphene, template molecules, functional monomers, a cross-linking agent and an initiator, two ends of the quartz capillary are sealed when the quartz capillary is filled with the prepolymer solution; then the sealed quartz capillary is put into a water bath for reaction; the wall of the quartz tube at the middle of the quartz capillary is etched off by a hydrofluoric acid solution; the template molecules in the polymer are removed; and the quartz capillary is broken off from the middle, so that the molecularly imprinted monolithic column solid-phase microextraction fiber is obtained. The preparation method is simple and fast; and the prepared extraction fiber has good chemical stability, mechanical stability and heat stability, high extraction volume, good selectivity for the template molecules and long service life, and has wide application prospects in the fields of analytical chemistry and environmental analysis.
Owner:DALIAN UNIV OF TECH +1

MOFs material-based series molecular sieve and preparation method and application method thereof in complex sample purification and separation analysis

The invention discloses a metal-organic frameworks (MOFs) material-based series molecular sieve and a preparation method and an application method thereof in complex sample purification and separation analysis, and relates to the technical field of chromatography application and the field of solid phase micro extraction. The series molecular sieve comprises an MOFs material-based solid phase micro extraction device and an MOFs material-based capillary gas phase chromatographic column; the MOFs material-based solid phase micro extraction device comprises a section of stainless steel fiber extraction head, the surface of which is coated with an MOFs material; and the MOFs material-based capillary gas phase chromatographic column comprises a section of capillary, the inner wall of which is uniformly coated with a layer of MOFs material. High-selectivity purification, efficient separation and specificity detection and measurement of a complex sample are realized by combined use of the solid phase micro extraction device coated with the MOFs material and the gas phase chromatographic column coated with the MOFs material. The series molecular sieve is favorable for large-scale popularization and application, and has broad application prospect in the fields of analytical chemistry, particularly environmental analysis, food analysis and the like.
Owner:NANKAI UNIV

High performance liquid chromatography determination method of tetracycline antibiotic in soil

InactiveCN102401818AEasy to separateReduced vacuum drying stepsComponent separationElutionSolid phase extraction
The invention relates to an environmental analysis detection method, and specifically, relates to a high performance liquid chromatography determination method of tetracycline antibiotic in soil. The high performance liquid chromatography determination method of tetracycline antibiotic in soil comprises the following steps of 1, a sample collecting and preparation process comprising collecting soil in a plough layer having thickness of 0 to 20 centimeters, wherein soil in a composting place and field edges is not adopted, uniformly mixing multiple single-point samples, carrying out quarteringreduction to obtain a mixed soil sample having weight of about 1kg, putting the mixed soil sample into a sealing bag, bringing the sealing bag with the mixed soil sample back with low-temperature preservation in the dark, putting the mixed soil sample into a room, drying in air, crushing, screening by a nylon sieve of 60 meshes, and weighing 2g of the mixed soil sample for next use, 2, an extractpreparation process, 3, an extraction, purification and enrichment process, and 4, an elution, volume metering and detection process. The high performance liquid chromatography determination method of tetracycline antibiotic in soil has normalized processes, reduces a vacuum drying process, produces low jamming, shortens operation time and improves operation accuracy. Through connection between astrong anion solid phase extraction column and a C18 inverted solid phase extraction column in series, purification and enrichment effects are greatly improved.
Owner:SICHUAN AGRI UNIV

Intelligent monitoring and management system for operation of power distribution cabinet based on data analysis

The invention relates to the technical field of power distribution cabinet monitoring, in particular to a power distribution cabinet operation intelligent monitoring management system based on data analysis, which comprises a state monitoring module, an environment analysis module, a period management module and a law analysis module, and is characterized in that the state monitoring module is in communication connection with the environment analysis module and the period management module; the state monitoring module is used for monitoring, managing and analyzing the running state of the power distribution cabinet and marking a monitoring object as a normal object or an abnormal object, the state monitoring module sends the normal object and an overall analysis signal to the period management module, and the state monitoring module sends the abnormal object and an environment analysis signal to the environment analysis module; the power distribution cabinet operation monitoring management system solves the problem that an existing power distribution cabinet operation monitoring management system cannot perform rule analysis on a power distribution cabinet with large operation state fluctuation, can perform real-time monitoring on the operation state of the power distribution cabinet, and can perform early warning in time when the power distribution cabinet operates abnormally.
Owner:融科能源系统(广东)有限公司

Preparation method of in-tube solid-phase micro-extraction column

The invention discloses an in-tube solid-phase micro-extraction column and a preparation method thereof, and belongs to the technical field of analytic chemistry sample pretreatment. The in-tube solid-phase micro extraction column is composed of a quartz capillary tube and a graphene oxide coating layer, wherein the graphene oxide coating layer is fixed on the inner wall of the quartz capillary tube through chemical bonding. During preparation, the inner wall of the quartz capillary tube is successively washed with an acid, washed with an alkali and blown to dry by nitrogen, a toluene solution containing 3-aminopropyltriethoxysilane (APTES) is poured into the capillary tube, the capillary tube has both ends sealed and is placed in a water bath for reaction, then a graphene oxide aqueous solution activated by 1-ethyl-3-(3-dimethylaminopropyl)-carbide diimine/N-hydroxy succinimide (EDC/NHS) is poured into the capillary tube, the capillary tube has the both ends sealed and is subjected to a reaction in the water bath, the graphene oxide is allowed to be bonded to the quartz capillary tube wall, and the in-tube solid-phase micro-extraction column is obtained. The in-tube solid-phase micro-extraction column has simple and rapid preparation method, allows the graphene coating layer to have good chemical property, mechanical property and thermal stability, has high extraction capacity and long service life, and has broad application prospects in the analytic chemistry and environmental analysis fields.
Owner:DALIAN UNIV OF TECH

Electricity enhanced molecular imprinting solid phase micro-extraction method

The invention relates to an electricity enhanced molecular imprinting solid phase micro-extraction method, characterized by: using a conductive molecular imprinting micro-extraction fiber as a working electrode, a platinum wire as an electrode and a saturated calomel electrode as a reference electrode, applying a bias voltage on the working electrode, letting a target compound be subject to electrophoresis and diffusion and migration to allow the target compound to reach the surface of the working electrode to complete the molecular imprinting identification extraction; and when extracting, providing a bias voltage to the working electrode through a electrochemical work station or potentiostat. The conductive molecular imprinting micro-extraction fiber is a metal wire with the diameter of0.5-1.0 mm, and one end of the fiber has a carbon nanotube-conductive molecular imprinting polymer composite coating with the thickness of 50-100 mu m and length of 1-2 cm. The extraction method is suitable for the extraction of ionic compounds and strong polar compounds. The conductive molecular imprinting micro-extraction fiber has simple preparation, large adsorption capacity to the target compound, high extraction efficiency, and good selectivity, can be reused more than 100 times, and has wide application prospects in the field of analytical chemistry and environmental analysis.
Owner:DALIAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products