7226 results about "Water sample" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.