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7248 results about "Water sample" patented technology
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Photoelectrochemical determination of chemical oxygen demand
ActiveUS20060240558A1High sensitivityWide linear rangeChemical analysis using catalysisChemical analysis using combustionSupporting electrolytePotential measurement
Owner:579453 ONTARIO INC
Pathogen Detection Using Coherent Anti-Stokes Raman Scattering Microscopy
The invention provides a system and method for automatic real-time monitoring for the presence of a pathogen in water using coherent anti-stokes Raman scattering (CARS) microscopy. Water sample trapped in a trapping medium is provided to a CARS imager. CARS images are provided to a processor for automatic analyzing for the presence of image artifacts having pre-determined features characteristic to the pathogen. If a match is found, a CARS spectrum is taken and compared to a stored library of reference pathogen-specific spectra for pathogen identification. The system enables automatic pathogen detection in flowing water in real time.
Owner:PRESIDENT & FELLOWS OF HARVARD COLLEGE +1
Kits and processes for removing contaminants from nucleic acids in environmental and biological samples
ActiveUS20050282202A1Improve accuracyImprove efficiencySugar derivativesMicrobiological testing/measurementBiotechnologyBiological body
The invention provides methods and compositions, e.g., kits, for removing contaminants from nucleic acids in a sample, e.g., environmental or biological samples such as soil, food, plant, animal, microorganism or water samples. The invention provides methods and compositions for isolating nucleic acids from environmental and biological samples in a scaleable process free of contaminating substances that inhibit PCR and other downstream applications. Exemplary sample types include soil, water, plant and food. The methods and compositions of the invention can be used for isolating and / or detecting nucleic acids from prokaryotic and eukaryotic organisms and for detecting multiple types of organisms in a sample. Thus, the methods and compositions of the invention are useful for detecting organisms pertaining to agriculture, forensics biology and / or combating bioterrorism.
Owner:QIAGEN SCIENCES LLC
Integral cabinet type water quality automatic monitoring device
ActiveCN101699295ALow costReduce the cost of land acquisition areaWithdrawing sample devicesTesting waterInstrument functionWater quality
The invention relates to an integral cabinet type water quality automatic monitoring device which comprises a communication and electric control functional area, a measurement instrument analysis functional area, a water collection and distribution functional area and a subsidiary functional area, wherein a communication control system in the communication and electric control functional area comprises a central main control module, a redundant main control module and a drive control unit having sub-functions of water collection and distribution pretreatment, measurement instrument analysis, environment control, entrance guard and safety prevention; all test instruments in the measurement instrument analysis functional area are designed by standard modularization, can be configured according to the requirement of a client and are assembled in a modularization way; in the water collection and distribution functional area, water collection and distribution and water sample preliminary treatment comprise a water sample pipeline, a flushing water pipeline, a wastewater pipeline, a rough grid filtering and sampling head, a water pump, a sand deposition device, a primary filter, a liquid level sensor, a circulation tank, a water quality probe sensor and an alga removing device; and the subsidiary functional area comprises a real-time environment monitoring module, an entrance guard and safety prevention module, an exceed-standard sample retainer and a power supply module of a fuel-fed generator.
Owner:YIWEN ENVIRONMENTAL SCI & TECH GUANGZHOU
Underwater robot platform
InactiveCN104142688AEnable collaborative movementLow costPosition/course control in three dimensionsCommunications systemBuoy
The invention provides an underwater robot platform. The underwater robot platform comprises at least one underwater robot, a monitor terminal, a buoy communication system and a water sampling device. The monitor terminal is used for sending motion and task instructions to all underwater robots; the buoy communication system is connected with the underwater robots through CAN cables to receive the motion and task instructions through the CAN cables, and the buoy communication system moves under dragging of the underwater robots and obtains positioning information and communication information of the underwater robots; the water sampling device communicates with the underwater robots through standardized interfaces and is used for collecting and recording water sample information; the underwater robots are used for completing corresponding motion and tasks according to the received motion and task instructions. The propulsion mode combining CPG bionic propulsion and gliding propulsion is adopted, the multiple underwater robots are cooperatively controlled through a wireless sensor network technology, and the underwater robot platform is high in real-time performance, movability and efficiency and has the long-time cruising ability.
Owner:SHENZHEN LEZHI ROBOT
Positive-pressure pneumatic type automatic water sample sampler
ActiveCN103439146AIncrease buoyancyLarge capacityWithdrawing sample devicesPositive pressureEngineering
The invention discloses a positive-pressure pneumatic type automatic water sample sampler comprising a sampling water storage bin, a counter weight bin and a high-pressure gas storage pot, wherein the upper part of the sampling water storage bin is provided with a sampling port; a gas-liquid piston cylinder is arranged under the sampling port and separated into an upper gas cavity and a lower liquid cavity through a piston plate; the cylinder wall at the bottom of the lower liquid cavity is provided with a liquid outlet; the liquid outlet is provided with a liquid drainage one-way valve; the upper gas cavity of the gas-liquid piston cylinder and the high-pressure gas storage pot are connected through a pipeline; the pipeline is provided with an environment pressure control valve; the bin wall of the counter weight bin is provided with a seawater inlet / outlet through hole; a gas bag is arranged in the counter weight bin; a gas inlet of the gas bag and the high-pressure gas storage tank are connected through a gas inlet pipeline; the gas inlet pipeline is provided with a gas inlet control valve of the gas bag; the cylinder wall at the bottom of the lower liquid cavity is provided with a pressure triggering button matched with the gas inlet control valve of the gas bag. By adopting the underwater pneumatic technology, a water sample with the set depth can be automatically sampled, the positive-pressure pneumatic type automatic sampler can automatically reset and can be applied to a variety of occasions, and a collected sample can be taken out.
Owner:HUAIHAI INST OF TECH
Automatic sampler of water quality sampling UAV (Unmanned Aerial Vehicle)
ActiveCN105571904AReduce weightImprove performanceWithdrawing sample devicesUncrewed vehicleWater quality
The invention discloses an automatic sampler of a water quality sampling UAV (Unmanned Aerial Vehicle). The automatic sampler comprises a main body support, a fixed height sensor, a water sample collecting device, a lifting device, a sample dividing device, a sample storage device and a control circuit board, wherein the water sample collecting device comprises a submersible pump, a pressure and liquid level sensor, a flexible water pipe and a flow sensor and is capable of completing fixed-depth sampling; the lifting device comprises a servo motor, a magnetic encoder, a reduction gear, a slip ring, a bearing, a proximity switch, a telescopic rod and a ceramic eye component and is capable of realizing retracing and releasing functions of the water sample collecting device; the sample storage device is formed by three layers of detachable plastic bottles. According to the automatic sampler disclosed by the invention, the weight of the automatic sampler can be effectively reduced, and the performance of the whole water quality sampling UAV is increased; meanwhile, the fixed-depth sampling is realized through the lifting device and the pressure and liquid level sensor which is additionally arranged in a sampling opening, the water quality collecting device can be retracted during a flying process of the water quality sampling UAV, and the safety during the flying process of the water quality sampling UAV is increased.
Owner:WUHAN BOGAN SPACE TECH CO LTD
Complex monitor for automatically monitoring multiple parameters of water on line
InactiveCN102661923AEconomic savingsNo secondary pollutionColor/spectral properties measurementsMaterial electrochemical variablesPrincipal component analysisUv vis absorbance
The invention discloses a method for automatically monitoring water quality indexes on line and a device for implementing the method. A method of combining an ultraviolet and visible spectroscopy and various sensors is adopted, dozens of water quality indexes including chemical oxygen demand and ammonia nitrogen can be measured at one time, measurement indexes can be configured in a building block mode according to requirements, and chemical agents are not required. According to the device, the constructed digital optical fiber spectrometer is taken as a core, ultraviolet and visible absorption spectrum data of a water sample is processed in a mode of sequentially combining wavelet de-noising, principal component analysis and a support vector machine, and water quality indexes such as chemical oxygen demand and biochemical oxygen demand of water are acquired. Various physical and electrochemical sensors acquire water quality indexes such as ammonia nitrogen, dissolved oxygen and conductivity. All hardware and software for implementing the method is put in a cabinet to form the device, and the device analyzes the introduced water sample under the control of an embedded industrial control computer system, and automatically monitors the water quality indexes in real time.
Owner:SICHUAN BELAM TECH
Multifunctional rudder-free aquaculture workboat
InactiveCN103786838AImprove work efficiencySave manpower and material resourcesNavigational aid arrangementsPropulsion power plantsWater qualityEngineering
The invention relates to a multifunctional rudder-free aquaculture workboat which comprises a boat body. A drive device, a steering device, a meteorological device providing information of wind speed, the wind direction, temperature, humidity and pressure, a navigation device, a communication module which can be communicated with a handheld mobile base station or a land fixed base station, an obstacle avoidance device, a coordination control drive device, a steering device, a central control module for achieving boat unmanned intelligent navigation, a water flow measuring device for detecting the speed and direction of the water flow, a water quality detection device for collecting a water sample and detecting water quality parameters, an underwater detection device for detecting the distribution state of the underwater fish schools or other biotic communities, an automatic bait casting device for controlling bait casting and feeding, and a storage battery for providing a work power source for a boat device. Fan drive is adopted by the workboat, a complex mechanical engine, a steering rudder and a transmission mechanism are removed, and the multifunctional rudder-free aquaculture workboat is light, high in efficiency, free of rudder and pollution and capable of automatically completing water quality parameter detection and bait casting and feeding in the aquaculture area.
Owner:JIANGSU UNIV
Water quality on-line monitoring method and system
ActiveCN101294906AHigh selectivityRealize switchingAnalysis by subjecting material to chemical reactionTesting waterWater sourceMonitoring system
The invention discloses a water quality online monitoring system which comprises a pump, a liquid storing unit, a reacting-detecting unit and a multi-pass direction selecting valve. The multi-pass direction selecting valve is provided with a sample introducing passage, a reagent passage, an analytical passage and a common passage communicating with the liquid storing unit; the reacting-detecting unit is composed of a light source, a reacting-detecting chamber, a detector and an analytical device; one end of the reacting-detecting chamber communicates with the analytical passage, and the other end is connected with a valve. The invention further discloses a water quality online detecting method. The monitoring system has the advantages of simple structure, high measurement accuracy and high response speed. Furthermore, the system can measure a plurality of parameters in a water sample, and can be widely applied to the online monitoring of water quality of various water sources, such as domestic sewage, industrial sewage, stream water, river water, etc.
Owner:FOCUSED PHOTONICS
Multilayer water sample continuous and automatic acquisition type deepwater sampling device
InactiveCN106053139ARealize in-situ water quality samplingImplement the sampling operationWithdrawing sample devicesMicrocontrollerEngineering
The invention discloses a multilayer water sample continuous and automatic acquisition type deepwater sampling device. The deepwater sampling device comprises a barrel which comprises a round top cover, a barrel body and a conical counterweight, water sampling bottles are fixedly arranged outside the barrel body, the barrel body is vertically partitioned into 2-3 inner chambers by partitions in the middle of the barrel body, and a single-chip microcomputer controller and a lithium battery are arranged in the inner chambers respectively. A pressure sensor used for measuring water pressure is fixedly arranged on the outer side wall of the barrel body, a lifting ring and a Bluetooth communication wire are fixedly arranged at the upper end of the round top cover, the lifting ring is connected with a motor lifting device arranged on the water surface, and the Bluetooth communication wire is in wireless communication with a computer on the water surface. Upper and lower end faces of each automatic sampling bottle are provided with water inlets respectively, electromagnetic valves are fixedly arranged at the water inlets respectively, the electromagnetic valves and the pressure sensor are respectively connected with the single-chip microcomputer controller, and the lithium battery is respectively connected with the electromagnetic valves and the pressure sensor to supply power to the same. The multilayer water sample continuous and automatic acquisition type deepwater sampling device has advantages that automatic sampling at six positions different in water depth, and simplicity in operation, high efficiency and continuous sampling of multilayer water samples are realized.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
Remote control sampler for collecting water samples at different depths
The invention discloses a remote control sampler capable of collecting water samples of different depths, which is characterized in that it comprises a sampler, a load-bearing rope and a controller. The sampler is composed of a sampling bottle and a sampling tank, the sampling bottle is composed of a bottle cap, a bottle body, a water inlet and an air suction port, the sampling tank is composed of a switch controller and a sampling bottle container, and the switch controller It is composed of a main control circuit A, a water pressure sensor, a DC motor and a video collector, and the DC motor is composed of a buckle, a telescopic rod and a rotating shaft. The load-bearing rope is composed of a cable and a deep-sea diving rope. The controller is composed of a main control circuit B, a keyboard, a display, a power supply, a motor and a bobbin. The sampler and the controller are connected together by a load-bearing rope. The invention relates to a remote control sampler capable of collecting water samples at different depths, which effectively solves the technical problem of multiple sampling in deep water by an unmanned monitoring ship.
Owner:TIANJIN POLYTECHNIC UNIV
Raindrop triggering type runoff automatic sampling device and method
ActiveCN103698159AReduce workloadImprove accuracyWithdrawing sample devicesPeristaltic pumpCloudburst
The invention relates to raindrop triggering type runoff automatic sampling device and a method, which can be used for carrying out regular-time automatic monitoring on storm runoffs in the environment monitoring field or the water and soil conservation field. According to the sampling device, the whole sampling device is controlled to be started through a raindrop triggering device; when rainfall reaches a set value, a PLC (Programmable Logic Controller) can start a step motor, a water pump and a peristaltic pump in sequence according to steps and time intervals which are set in advance, so as to collect runoff water samples in different periods and point locations and assign to corresponding sample bottles for storage. By being arranged near a riverway for sampling in advance, the raindrop triggering type runoff automatic sampling device can automatically collect the runoff water samples in an unattended operation during rainstorm, so that the outdoor sampling difficulty of rainstorm runoffs is greatly reduced, and the labor intensity of the sampling staff is reduced. Furthermore, the raindrop triggering type runoff automatic sampling device further has the advantages of high sampling reliability, low production cost and compact structure.
Owner:ZHEJIANG UNIV
Functionalization of air hole arrays of photonic crystal fibers
InactiveUS20070020144A1Material nanotechnologyRadiation pyrometrySurface-enhanced Raman spectroscopySelf-assembled monolayer
An inventive sensor is used in combination with spectroscopic techniques to detect, identify and quantify ultratrace (ppt to ppb) quantities of analytes in air or water samples. The sensor preferably comprises a photonic crystal fiber having an air hole cladding with functionalized air holes. Surface-enhanced Raman spectroscopy is a preferred spectroscopic technique. In such applications, the air holes of the fiber may be functionalized by adsorbing a self-assembled monolayer on their inner surfaces, and immobilizing metallic nanoparticles to the monolayer. The invention has chemical and biomedical applications, and utility in detecting chemical and biological agents used in warfare.
Owner:STEVENS INSTITUTE OF TECHNOLOGY
Intelligent device for integrated sampling of layered water and sediment core of deep reservoir
ActiveUS20190204287A1Efficient and Accurate CollectionEfficient and undisturbed collectionWithdrawing sample devicesTesting waterUnderwaterPropeller
An ultra-deep reservoir stratified water sample and sediment core integrated artificial intelligence sampling device, comprising a sampling device main chamber, an attitude balance sensor, a propeller, a balance base, and a sampler body, wherein the attitude balance sensor and the sampler body are disposed inside the sampling device main chamber; the propeller is disposed outside the sampling device main chamber; and the balance base is located at a bottom end of the sampling device main chamber. The sampling device of the present invention is an intelligent sampling device integrating high-definition underwater topography observation, undisturbed sediment core collection, vertical stratified accurate sampling of water bodies, and real-time in-situ monitoring of key physical and chemical parameters, and can be flexibly applied to deep and shallow water environments under complicated conditions.
Owner:NANJING HYDRAULIC RES INST
Electrochemical sensor capable of detecting trace mercury in water body, and preparation method and application thereof
InactiveCN102706940ASimple structureEasy to manufactureMaterial electrochemical variablesPeak currentSquare wave voltammetry
The invention discloses an electrochemical sensor capable of detecting trace mercury in a water body. The electrochemical sensor comprises a gold electrode, wherein gold nanoclusters are deposited on the surface of the reaction end of the gold electrode; and sulfhydryl-modified mercury-specific oligonucleotide probes are self-assembled on the gold nanoclusters. The preparation method for the electrochemical sensor comprises the following steps of: first, preparing the gold electrode; then, electrodepositing the gold nanoclusters on the surface of the reaction end of the gold electrode; and finally, self-assembling the sulfhydryl-modified mercury-specific oligonucleotide probes on the end surfaces of the gold nanoclusters so as to finish the manufacturing of the sensor. By using the sensor provided by the invention, the trace mercury in the water body can be detected; and the specific operation comprises the following steps of: first, placing the reaction end of the sensor in a water sample for reacting; then, immersing the reaction end into an anion double-stranded deoxyribonucleic acid (DNA) signal embedded agent for complete treatment; later on, connecting the sensor into an electrolytic cell of a three-electrode system and measuring the change of a response peak current by using square wave voltammetry; and finally, judging whether the water sample contains mercury ions on the basis of the change. The electrochemical sensor has the advantages of simple and practical structure, convenience in manufacturing, high sensitivity, high selection specificity and the like.
Owner:HUNAN UNIV
Multispectral-based multipoint sampling multiparameter water quality on-line analytical system
InactiveCN102156100AEasy to analyzeAccurate analysisPreparing sample for investigationRaman scatteringFluorescenceSolenoid valve
The invention discloses a multispectral-based multipoint sampling multiparameter water quality on-line analytical system, comprising an optical system, a waterway system and a detection control system, wherein the optical system is used for scanning the ultraviolet-visible light transmitted spectrum, and fluorescence and Raman emission spectra and the like of a water sample to be detected by adopting a multi-wavelength laser, a pulsed xenon lamp and a charge coupled device (CCD) spectrum detector and converting the scanned spectra into digital signals; and based on multipoint sampling design, the waterway system is used for enabling quantified sewage and clear water to enter into a sampling device through controlling the on and off of a water pump and a solenoid valve so as to realize the collection of the spectroscopic data, moreover, the waterway system has a function of automatically cleaning a sewage pipeline system; and an industrial personal computer is adopted as a core processing unit of the detection control system. The whole system can automatically and continuously operate and is suitable for online analysis.
Owner:ZHEJIANG UNIV
Method for rapidly tracing to water pollution source
ActiveCN102661939AAchieve traceabilityStrengthen the supervision of pollution dischargeComponent separationMaterial analysis by electric/magnetic meansSewageSource tracing
The invention relates to a method for rapidly tracing to a water pollution source of a water area (comprising a river, a lake, a reservoir and the like) so as to strengthen the pollution discharge supervision, namely a method for rapidly tracing to a pollution source in a water area by establishing a chemical fingerprint information database in an upstream of the water area and around the pollution source. According to the method provided by the invention, the water pollution source is rapidly traced by analyzing pollution discharge information of pollution discharge enterprises in the upstream, and establishing the sewage chemical fingerprint database of the enterprises in advance. Compared with the conventional water pollution source tracing method, the method can be used for greatly reducing a quantity of water samples in need of being detected and analyzed, so that the method is rapider, effective and standard, and has more powerful supervision strength. Compared with the existing pollution discharge supervision technology, the method can be used for greatly reducing the mounting and using quantity of online monitoring equipment and saving a large amount of cost, is more economical and convenient, is easier to maintain and update, and is more effective and standard.
Owner:ANHUI ZEZHONG SAFETY TECH +1
Water quality automatic monitoring data acquisition device
InactiveCN109839291AImprove the degree of integrated intelligenceHigh precisionWithdrawing sample devicesTesting waterWater qualityData acquisition
The invention discloses a water quality automatic monitoring data acquisition device, and relates to the technical field of water quality monitoring. The device comprises a floating platform, whereinthe bottom of the floating platform is provided with buoys, the top of the floating platform is provided with a protective box, the protective box is internally provided with a first motor, a water tank and an air pump, the water tank is located between the first motor and the air pump, one end of the first motor is rotatably connected with a winding wheel through a rotating shaft, the outer wallof the winding wheel is wound with a pulling rope, and one end of the pulling rope is provided with a lifting seat. The device ensures the stability in sampling through introducing negative water pressure into a sampling tube, and avoids a problem of inaccurate data caused by the mixed water quality in subsequent sampling due to the residual water sample in the sampling tube, realizes the functions of water parameter acquisition, analysis, storage, supervision, early warning and display for deep or shallow water areas by adopting an integrated intelligent water quality acquisition control system, and greatly improves the integration and intelligentization degree of the water quality acquisition device and the accuracy of water quality parameter acquisition.
Owner:BAOJI UNIV OF ARTS & SCI
Preparing and applications of ferric oxide-alumina compound nanophase defluoridation material
InactiveCN101229504AReduce dosageImprove adsorption capacityOther chemical processesWater/sewage treatment by sorptionSorbentAlumina composite
The invention pertains to the field of chemical analysis test equipment, relating to a novel composite material of nano iron oxide-alumina which is used as an sorbent for removing fluoride from water to remove the fluoride from the large amount of drinking water; the fluorin content after the treatment is lower than the content of national standard; compared with the traditional defluorinating agent, the invention has the advantages of simple structure, low cost, high sorption capacity and fast removing speed. As a novel magnetic nano material, the defluorinating agent can realize the separation of extraction agent and base solution under the condition of external magnetic field. The surface of the nano iron oxide is coated with a layer of Al(OH)3; F<-> and Al<3+> in the water to form a complex compound which settles down to realize the effect of defluorination; 1L of water sample only consumes the defluorinating agent of 0.1g; to high fluorin content water with concentration of 20mg / L, the concentration after defluorination can be less than 1mg / L, which can well meet requirement with the reproducibility of analysis result RSD being less than 7 percent.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
Polyphase fluid experimental tank system
InactiveCN101424587AFlow field stabilityEasy to observeHydrodynamic testingControl systemEngineering
The invention relates to a multiphase flow test flume system which comprises a main body, a clear water circulating system, a muddy water circulating system, a water inlet system, a control system and a water outlet switching system, wherein a support and a jack are arranged at the bottom of the main body and are fixed on the ground by supporting hinges for adjusting the width and the gradient of a flume, and the water inlet system comprises a sampling discharge outlet, a manual valve, a flowmeter and an electromagnetic valve and is connected with the top end of the main body; the control system is arranged at one side of the top end of the main body for controlling all switches, and the water outlet switching system is arranged at one outer side end of a water outlet of the main body and is connected with a clear underground water pool in the clear water circulating system and a muddy underground water pool in the muddy water circulating system. Due to the clear water circulating system and the muddy water circulating system which are independent, the invention reduces test water consumption and test cost and conveniently recycles and treats polluted water samples, and a clear water / muddy water switching device of a water outlet system is easily designed and conveniently operated so as to effectively solve the switching problem among different circulating systems.
Owner:SICHUAN UNIV
Automatic river and lake water sample control acquisition system based on multi-rotor-wing unmanned aerial vehicle
InactiveCN104122117AReasonable structureAccurate samplingTransmission systemsWithdrawing sample devicesAutomatic controlEngineering
The invention relates to an automatic river and lake water sample control acquisition system based on a multi-rotor-wing unmanned aerial vehicle. The automatic river and lake water sample control acquisition system comprises a remote controller, the multi-rotor-wing unmanned aerial vehicle, a lifting device and a water sample acquisition device, wherein the lifting device is arranged on the multi-rotor-wing unmanned aerial vehicle, the water sample acquisition device is connected with the lifting device, a wireless receiver, a programmable logic controller, a navigation locating system, a camera and a wireless transmitter are arranged on the multi-rotor-wing unmanned aerial vehicle, the navigation locating system is connected with the wireless receiver, the wireless receiver and the wireless transmitter are both in wireless communication with the remote controller, and the wireless receiver, the wireless transmitter, the camera, the lifting device and the water sample acquisition device are all connected with the programmable logic controller. The automatic control acquisition system enters a sampling region in a flying manner, is flexible, and can prevent the problem that existing sampling equipment cannot enter the sampling region due to frondent aquatic plants in riverways, relatively low water level, complex sampling environments and the like, so that the sampling in a high-efficiency manner can be accurately performed.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY
Triggered type seabed water sample acquisition system
The invention discloses a triggered type seabed water sample acquisition system, and aims at providing a triggered type seabed water sample acquisition system which is capable of conveniently and accurately acquiring water samples within a specific distance above a seabed. The triggered type seabed water sample acquisition system comprises a release device, a triggering device, a deposition counterweight and a plurality of water samplers, wherein each water sampler comprises a third connecting rope, an acquisition cylinder with two ends being sealed, guide through holes formed in the two ends of the acquisition cylinder, a sliding shaft rod which is arranged inside the guide through holes in a sliding manner, a limiting ball which is connected with the acquisition cylinder through a fourth connecting rope, an unlocking device and a buoyancy body arranged on the acquisition cylinder; the buoyancy of the buoyancy body is greater than the gravity of the water sampler.
Owner:MARINE FISHERIES RES INST OF ZHEJIANG
Fast preparation method of biological affinity copper nanometer cluster
InactiveCN104807795AImprove stabilityImprove solubilityFluorescence/phosphorescenceProtein solutionSynthesis methods
The invention relates to a fast preparation method of a biological affinity copper nanometer cluster, is applied to the detection of Hg<2+> content in a water sample, and belongs to the technical field of nanometer material preparation. A copper source solution and a protein solution are uniformly mixed; the pH of the solution is regulated to the alkalinity by alkali; oxidizing agents are dropped; heating incubation is carried out for a period of time; the copper nanometer cluster is prepared; the copper nanometer cluster is used for detecting the fluorescence intensity of an Hg<2+> standard solution or an Hg<2+> sample solution; the fluorescence intensity is substituted into a linear regression equation, and the Hg<2+> content in the sample is calculated. Due to strong oxidizing property and coordinating capability of oxidizing agents, the secondary structure in protein can be changed, copper-protein-oxidant complexes can be formed, the reducing capacity of the protein is enhanced, and the formation of the copper nanometer cluster is obviously accelerated. The copper nanometer cluster is used for the Hg<2+> detection in the water sample, and the method is obviously superior to the prior art in the aspects of analysis time, sensitivity, selectivity and cost.
Owner:JIANGNAN UNIV
Underwater movement sampling platform
InactiveCN101403660AIncrease flexibilityThe degree of freedom becomes largerWithdrawing sample devicesControl systemMarine engineering
The invention discloses an underwater movable sampling platform which is characterized in that the sampling platform comprises a diving power device, a collecting unit and a control system; the diving power device comprises a main bin and a horizontal pushing device and an sinking-raising device which are arranged on the main bin; the collecting unit comprises a water-sample collecting device, a soil-sample collecting device and a real-time image collecting device which are connected with the main bin; and the control system comprises an onboard panel and a terminal PC connected with the onboard panel which are all arranged in the main bin. The invention is provided with the diving power device so as to be capable of flexibly moving under water and accurately search and acquire the underwater samples in a wider range compared with the existing underwater samplers; simultaneously the invention is provided with the integrated collecting unit so as to fully complete the collections of water samples, underwater humus and underwater images in one underwater environment detection task and then the collection efficiency is higher compared with that of the existing underwater samplers.
Owner:郑雨 +2
Online water quality monitoring device and method based on full spectra
ActiveCN106198424ARealize online monitoringRealize the localization of online monitoringColor/spectral properties measurementsAdditive ingredientTurbidity
The invention relates to an online water quality monitoring device and method based on full spectra. The device comprises a pulse xenon lamp, a cleaning module, a spectrum measuring module and a control unit. One end of the cleaning module is connected with the pulse xenon lamp, the other end of the cleaning module is connected with the spectrum measuring module, the control unit controls the pulse xenon lamp to emit pulse light, controls the cleaning module to clean a measuring surface as needed and carry out light path switching, and controls the spectrum measuring module to read the light signal intensity of each waveband. According to the online water quality monitoring device and method based on full spectra, ultraviolet visible full waveband absorbing spectra are adopted for measuring the water pollution condition, factors such as COD, BOD, TOC, nitrate, nitrite, the turbidity and chromaticity can be measured, and the online water quality monitoring device and method based on full spectra have the advantages of being high in measuring precision, short in measuring time, large in number of monitoring factors, free of a reagent and secondary pollution and the like; the changing condition of water pollution is reflected in real time, and corresponding chemical models can be established according to ingredients of field water samples to meet the demands for measuring different water bodies.
Owner:深圳市七善科技有限公司
Water sampler capable of synchronously collecting multilayer water samples at fixed depth
ActiveCN103278352ASynchronous acquisitionImprove sealingWithdrawing sample devicesEngineeringWater sampling
The invention discloses a water sampler capable of synchronously collecting multilayer water samples at fixed depth. The water sampler is mainly composed of a handle, a reel, a load bearing band, a lifting rope, floating bodies, water sampling units and a carrying idler, wherein scales and fixing holes are formed in the load bearing band, the floating bodies and the water sampling units are fixed on the load bearing band, and the positions of the floating body and the water sampling unit and the number of the water sampling unit can be determined according to actual demand. The plurality of water sampling units are fixed on the load bearing band of the device to collect water samples on the same vertical section in different depths, the obtained water samples are accurate, and the operation is simple. The assemblies of the device are detachable and are simple to assemble and convenient to carry, thereby being suitable for quick collection of field water samples.
Owner:ZHEJIANG UNIV
Multi-point water sample automatic acquisition device carried by unmanned ship and method
The invention provides a multi-point water sample automatic acquisition device carried by an unmanned ship. The multi-point water sample automatic acquisition device comprises a water sampling control module, a water inflow device, a water storage device and a transmission device. The water inflow device comprises a water suction pump, a water suction pipe for water suction and a connecting pipe for connecting the water suction pump with the water storage device. The water storage device comprises a tray, a supporting rod, a water sampling bottle frame, water sampling bottles and a cover plate. The water sampling bottle frame is fixed above the tray through the supporting rod, and the transmission device can drive the water sampling bottle frame to rotate around the supporting rod. A circle of water sampling bottle clamping grooves is formed in the water sampling bottle frame, and one water sampling bottle is clamped and fixed into each water sampling bottle clamping groove. The cover plate capable of covering the water sampling bottle frame is installed above the water sampling bottle frame, a water pipe joint communicated with the connecting pipe is arranged on the cover plate, and the water sampling control module is used for controlling the rotating angle of the water sampling bottle frame and the starting and stopping time of the water suction pump. Multi-point water sample acquisition can be achieved, manual work can be replaced, precision control can be achieved during multi-point acquisition, efficiency is high, and installation and use are both convenient.
Owner:CHINA THREE GORGES CORPORATION +1
Novel water sample-sediment joint sampling device and sampling method thereof
ActiveCN107290174AAccurate collectionReduce disturbanceWithdrawing sample devicesEngineeringGas-filled tube
The invention discloses a novel water sample-sediment joint sampling device, comprising a connection tube; a sampling control handle is fixed at the upper end of the connection tube, the lower end of the connection tube is movably connected with a water sampling tube, the water sampling tube, a transition tube and a sediment sampling tube are connected in sequence, the inside of the water sampling tube is divided into a plurality of independent closed compartments by partitions, the upper and lower ends of one side of each closed compartment are provided with a water inlet and a water outlet respectively, an area corresponding to each water inlet is provided with a balloon that is communicated with an external gas source through an inflating tube, the lateral side of the upper end of the sediment sampling tube is provided with a water outlet, a cut-off device is movably connected to the bottom of the sediment-sampling tube, the upper and lower ends of the transition tube are provided with water outlets respectively, a sealing operation rod penetrates the connection tube and the water sampling tube, the upper end of the sealing operation rod penetrates the sampling control handle and fixedly connects with the sealing control handle, the middle of the sealing operation rod penetrates a retaining plate in the water sampling tube, and the lower end of the sealing operation rod is movably connected with a seal piston in the transition tube. The invention also discloses a sampling method using the sampling device.
Owner:SHANDONG UNIV OF SCI & TECH
Movable water quality automatic emergent monitoring system
ActiveCN101620214AImprove monitoringReduce severityGeneral water supply conservationChemiluminescene/bioluminescenceMonitoring systemWater quality
The invention discloses a movable water quality automatic emergent monitoring system which comprises a moving carrier, an automatic water fetching and sample reserving module, a water sample pretreatment module, a multi-parameter automatic detection module, a monitoring module, a display screen, a keyboard and a remote transmission module, wherein the automatic water fetching and sample reserving module, the water sample pretreatment module, the multi-parameter automatic detection module, the monitoring module, the display screen, the keyboard and the remote transmission module are arranged on the moving carrier; the output end of the automatic water fetching and sample reserving module is connected with the input end of the water sample pretreatment module; the output end of the water sample pretreatment module is connected with the input end of the multi-parameter automatic detection module; and the output end of the multi-parameter automatic detection module is connected with the monitoring module which is connected with the display screen, the keyboard and the remote transmission module. The movable water quality automatic emergent monitoring system can simultaneously monitor a plurality of parameters, can achieve the functions of sampling, sample retention, analysis, data upload, automatic alarm and the like and can meet the requirement of emergent water body pollution accidents on the water quality monitoring.
Owner:LIHE TECH (HUNAN) CO LTD
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