348 results about "Sample handling" patented technology

The invention discloses a pesticide residue quantitative analysis system based on Raman spectrum, and relates to the technical field of analytical chemistry and detection.The pesticide residue quantitative analysis system comprises an acquisition module, a processing module, an analysis module and a regulation and control module, the acquisition module is used for acquiring samples and Raman scattering signals, converting the Raman scattering signals into original spectrum data and transmitting the original spectrum data to the processing module; calibrating the original spectrum data, acquiring calibrated spectrum data, transmitting the calibrated spectrum data to an analysis module, comparing the calibrated spectrum data with a pesticide standard spectrum library, outputting a quantitative analysis result of pesticide residues, transmitting the quantitative analysis result to a regulation and control module, storing the pesticide standard spectrum library and the calibrated spectrum data, and correcting sample detection deviation by using the calibrated spectrum data. And through the regulation and control unit, full-process automatic operation from sample processing to result output is realized, the detection reliability is improved through spectrum compensation and characteristic peak comparison, efficient automation is realized through task scheduling and time sequence synchronization, and hardware fault tolerance, authority management and multi-scene adaptation capabilities are realized.

The invention discloses a digital acoustic fluidic chip, a preparation method and a multi-dimensional sample processing method, the digital acoustic fluidic chip comprises an upper polar plate and a lower polar plate, and the upper polar plate comprises a glass layer, a coating layer and an upper hydrophobic layer which are arranged in sequence; the lower polar plate comprises a lower hydrophobic layer, a dielectric layer, an electrode layer and a substrate which are arranged in sequence; the electrode layer comprises an EWOD pin electrode, a driving electrode, a sound wave pin electrode and an interdigital transducer; the interdigital transducer comprises a sound field and electric field multiplexing module, a sound standing wave field and thermal field module, a focusing sound field and thermal field module and a sound vortex enrichment module; each driving electrode is connected with one EWOD pin electrode, the two sides of the sound field and electric field multiplexing module, the two sides of the sound standing wave field and thermal field module, the two sides of the focusing sound field and thermal field module and the two sides of the sound vortex enrichment module are all connected with the two sound wave pin electrodes, and one side of the sound field and electric field multiplexing module is further connected with one EWOD pin electrode. The method has the advantages of multi-dimensional sample treatment and high-flexibility treatment.

Provided herein are kits, systems and methods for analyzing analytes from a biological sample. The system includes an upper housing configured to receive a sample substrate and a thermal element configured to control a temperature of the sample substrate. The system includes a lower housing and an alignment mechanism coupling the upper housing to the lower housing. The alignment mechanism is configured to move the upper housing, the lower housing, or both into an arrangement having an open configuration, a closed configuration, or an intermediate configuration therebetween. The thermal element is configured to cool the sample substrate.

Provided is a characteristic element combination anomaly derivative method of determining occurrence of a deep concealed plate-shaped ore body of a hydrothermal deposit. The method determines the spatial occurrence of the deep concealed ore body of the hydrothermal deposit through four working procedures, including: fine measurement of a metallogenic structure and systematic collection of samples, sample processing and multi-element quantitative analysis, mathematical model construction of characteristic element combination anomaly, and determination of the occurrence (the strike, the dip direction, the dip angle and the pitch direction) of the deep concealed ore body. The method solves the problem of judging the occurrence of the deep concealed ore body by interpreting geochemical anomalies of a primary halo and a secondary halo.

The present application relates to the technical field of coal sampling machinery, and particularly relates to a novel automobile sampling machine, which comprises a sampling execution device, a sample processing device and a control device. The sampling execution device is provided with a screw drill type sampling head, a driving mechanism, a lifting mechanism and a cleaning mechanism; the sample processing device comprises a sample collector and a sample preparation unit. The control device is connected with each device through an industrial communication bus and is configured to perform a sampling point random determination operation to generate coordinate information, control the sampling head to move to a target position, then drive the outer cylinder sawtooth structure to rotate and cut and break the lump coal in a breaking mode, and then switch to a sampling mode to drive the internal drill rod to drill and sample; the sampling amount is monitored through a sensor to generate a stop signal, the sampling head is controlled to be lifted to the sample collector to release the coal sample, and finally the cleaning mechanism is started to clean the residues. The present application realizes the automatic sampling of coal of all particle sizes and effectively solves the sample distortion problem caused by the fact that lump coal cannot be sampled.

This invention discloses a controlled-release solid film formulation for pesticides, its preparation method, and its applications. This invention upgrades pesticides from liquid / powder formulations to solid film formulations, utilizing the solid film to physically block pesticide drift, diffusion, and loss, reducing off-target effects at the source. Through the combined use of physical and chemical techniques, pesticides are uniformly distributed within the solid film, and the pesticide release cycle is synchronized with the solid film degradation, achieving precise controlled release. This solid film formulation is applied from the beginning of crop growth, synchronized with the plant growth cycle, providing early preventative effects through quantitative controlled release of pesticides. This solid film formulation also functions as a mulch film; its preparation process is simple and easy, it is completely degradable and requires no recycling, reducing costs. The identification method of this invention utilizes selective precipitation separation technology, achieving high pesticide extraction efficiency of 95%-98%, especially suitable for low water-soluble pesticides. The drug identification process is simple to operate: the entire process takes less than 4 hours, requires no complex purification steps, and is suitable for batch sample processing.

Systems and corresponding methods transfer liquid sample from a first container having a cap with a sample collection swab coupled thereto to a second container having a cap without such sample collection swap coupled thereto. Other systems and corresponding methods remove a cap having no sample collection swab coupled thereto from a first container and remove a cap having a sample collection swab coupled thereto from a second container containing a liquid sample. The cap with the sample collection swab coupled thereto is then secured to the first container and the cap having no sample collection swap coupled thereto is then secured to the second container.

This utility model relates to the field of metallographic preparation technology, specifically to a metallographic sample fixture, including a base, a support platform for placing metallographic samples on the base, a housing between the support platform and the base, and a plurality of claws arranged in a circular array on the housing. The claws are rotatably connected to the housing, and the top of the claws has a protruding abutment portion. A push rod is slidably arranged on the housing, one end of the push rod abutting against the bottom of the claws. An adjustment component is provided inside the housing, the adjustment component including a turntable and a plurality of protrusions arranged in a circular array on the circumference of the turntable. The outer surface of the protrusions protrudes outward to form an arc-shaped surface, and the arc-shaped surface of the protrusions abuts against the other end of the push rod. The metallographic sample pre-fabrication fixture provided by this utility model has a simple structure and is easy to operate, which can solve the problems of difficult sample handling and uneven sample grinding during the metallographic sample polishing process.

An automated apparatus can provide pre-analytical processing of samples, racking and forwarding to an adjacent analyzer for analysis. The apparatus may have a controller that implements an auto-learn process to teach robotic handlers the locations within the workspace(s) of the apparatus. A robotic sample handler may include a sensor configured to generate a detection signal when in a near vicinity of a fiducial beacon in the workspace of the apparatus for biological sample preparation, preprocessing and / or diagnostic assay performed by one or more analyzers of the automated apparatus. The controller may control the robotic sample handler to conduct a search pattern so that a location of the fiducial beacon may be detected and thereafter calculated to obtain a more accurate location of the beacon. The calculated positions may then serve as a basis for the controlled movement of samples by the robot to and from locations of the workspace.

The application discloses a flow cytometry sample processing system and belongs to the technical field of automatic processing of biological samples. The flow cytometry sample processing system comprises a machine table, a flow tube block placing structure, a transfer mechanical arm, a shaking module and a centrifuge. The flow tube block placing structure is arranged on the machine table, a flow tube block is arranged on the flow tube block placing structure, a flow tube is arranged on the flow tube block, the transfer mechanical arm provided with a clamping jaw can integrally transfer the flow tube block provided with a clamping hole to the shaking module and the centrifuge, and the whole process automation is truly realized, and the sample centrifugal processing efficiency is improved.

In one aspect, the application relates to a robotic sample handling system comprising a controller and a robot arm, the robot arm being controllable to be positioned within a horizontal XY plane parallel to a work area and along a vertical Z axis perpendicular to the work area. The work area comprises a module provided with a movable element (550) for interacting with a sample container (170). The module is equipped with a mechanism comprising: - a first linear element (210) and a second linear element (220), the first and second linear elements extending along the vertical direction Z and being mounted to the module in such a way that each linear element is movable in a downward and upward direction between a raised position and a lowered position; and - at least one rotor element (230) engaged with each of the first and second linear elements, such that when one of the first and second linear elements is in the raised position, exerting a downward force on this linear element results in: displacement of this linear element in the downward direction; rotation of the at least one rotor element; and, displacement of the other linear element in the upward direction. The movable element (550) is mounted in connection with the rotor element and is displaceable between a first position and a second position. The controller is configured to control the robot arm to displace the movable element by pushing against one of the first and second linear elements in the Z direction downward when this linear element is in the raised position.

This plasma processing device suppresses the adhesion of foreign matter to a sample when the sample is separated.　The plasma processing device comprises: a processing chamber which is disposed inside a vacuum container and in which plasma for processing a sample is formed; and a sample table which is disposed inside the processing chamber and on a top surface of which the sample is placed and held. The following steps are executed: a first step in which, after the processing of the sample has been completed, plasma is formed using gas supplied into the processing chamber, and in that state the sample is raised to a position spaced apart from the top surface of the sample table in the upward direction and then placed on the top surface again; a second step in which, after the sample has been placed on the top surface of the sample table again, power is supplied to an electrode inside the sample table and the sample is charged to a positive potential, and in that state the plasma is extinguished; and a third step in which, after the supply of power to the electrode has been stopped, the sample is moved to a position spaced apart from the top surface of the sample table in the upward direction.

The utility model provides a raw ore solid sample processing and dividing device which comprises a mounting frame, the material guide frame is fixedly mounted at the top of the mounting frame; the multiple first material distribution grooves are formed in the inner side face of the mounting frame; and the multiple second material distribution grooves are all formed in the inner side face of the mounting frame, and the multiple first material distribution grooves and the multiple second material distribution grooves are alternately arranged. According to the raw ore solid sample processing and dividing device provided by the utility model, the mounting frame, the material guide frame, the first material dividing groove, the second material dividing groove and other structures are matched with one another, so that the labor intensity of operators is greatly reduced when the device is used, and the sample processing time and procedures are reduced in the aspect of improving the ore processing production efficiency; and the continuity and smoothness of the whole production process are improved, so that the ore processing production efficiency is promoted.

The invention discloses an atmospheric pollutant prevention, control, monitoring, early warning and traceability system, and belongs to the technical field of environmental science. The system comprises the following steps that S1, a sample collection module collects all pollution source samples in a target area, a source sample processing and analyzing module analyzes source sample feature vectors after preprocessing all the pollution source samples in the area, and a traceability matching module constructs an atmospheric pollutant matching model according to the source sample feature vectors of all the pollution source samples; and S2, when the source of the atmospheric pollution source needs to be traced, a sample collection module collects an environmental gas sample in the target area, and pollutant feature vector analysis is carried out on the collected environmental gas sample. A target area pollution source sample is collected through a sample collection module according to a standard, after pretreatment, source sample feature vectors such as chemical components, isotopes and physical features are comprehensively analyzed, a multi-dimensional and standardized data source is provided for subsequent traceability, and the accuracy and reliability of a matching model are ensured.

The invention relates to the technical field of sample treatment equipment, in particular to a centrifuge tube supernatant full-amount transfer device which comprises a device main supporting assembly, a transfer assembly is mounted at the top of the device main supporting assembly, a clamping assembly is mounted in the transfer assembly, and a receiving container feeding and discharging mechanism is mounted on one side of the transfer assembly. A sample tube cover dismounting and mounting mechanism is mounted at the top of the device main supporting assembly. Relative reaction is generated through the volume change of a sample and the telescopic pressure sensor, then electric signals are transmitted to the heating assembly in the cavity block, the heating assembly heats residual materials in the sample tube through the arc-shaped clamping disc, the sample tube is driven to rotate at a high speed through the gear built-in frame, and due to the fact that the residual amount of the residual materials is small, the sample tube can rotate at a high speed. And hydrogen bonds or Van der Waals force among particles can be easily damaged by heating and centrifugal action, so that particle aggregation is reduced, and the separation efficiency is improved.

The invention discloses a multi-channel extensible automatic sample loading system for DNA storage and calculation and a control method. The system comprises a gas path control device, a multi-channel sample introduction device, a liquid flow control device, a multi-liquid-path liquid collection device, a micro-fluidic chip and an upper computer, operation control over the whole system is provided through the upper computer, a user can adjust the sample injection sequence and the reaction time of each channel, the liquid flow and the gas flow of each channel are monitored and adjusted in real time in an experiment, and multi-channel and high-precision automatic sample injection is achieved. According to the invention, accurate injection and automatic control of samples are realized, the efficiency and precision of sample treatment are greatly improved, and high automation, high-precision sample injection and multi-channel low cross contamination control capability are realized; the expandability is high, and modular expansion to hundreds of channels or even hundreds of channels is supported; meanwhile, the method is compatible with various application scenes, and is suitable for the fields of high-throughput DNA calculation, DNA information storage, biomedical detection and the like.

The invention relates to a material handling unit for a mobile industrial robot (1) for the automation of laboratories in the field of laboratory medicine, and to a laboratory installation comprising the mobile industrial robot (1) and the material handling unit mounted on the industrial robot (1). The material handling unit includes a carrier (2) mountable on the industrial robot (1) and one or more sample handling units (3), each containing a sample holder (6) for receiving laboratory sample containers and a sample holder grip (5) for secure fixation. In combination with the mobile industrial robot (1), the material handling unit enables optimized sample logistics through the rapid provision and transport of laboratory samples, reduction of the travel distances of the industrial robot (1), and increased process efficiency.

A rapid formaldehyde content detection device for hair products, relating to the field of formaldehyde detection technology, is used to achieve rapid and accurate detection of formaldehyde in hair products while meeting the requirements of convenience. The rapid formaldehyde content detection device for hair products includes a housing, an optical detection system, a sample processing system, an electronic control system, a software system, and a transparent detection tube. The housing is rectangular, with three drawer-style compartments inside: the upper compartment is the optical detection system compartment, the middle compartment is the electronic control system compartment, and the lower compartment is the sample processing and storage compartment. Shock-absorbing rubber pads and metal supports are installed between the optical detection system compartment and the electronic control system compartment, and between the electronic control system compartment and the sample processing and storage compartment. The bottom of the housing has binding straps for securing it, and the side of the housing has an openable transparent observation window. The optical detection system includes a laser light source module, a spectral collection component, and a detector. The sample processing system includes a sample stage, auxiliary devices, and a transparent detection tube.

A method of loading consumables into a sample processing instrument. In the method, a tray storing sample processing consumables is aligned with a support cavity defined by a support of the sample processing instrument. A flange is contacted with a portion of the support, where the flange extends outward from a wall of a cover coupled to the tray. The cover is decoupled from the tray by pressing a panel of the cover, and the tray is seated in the support cavity.

A robotic system for automated sample preparation is provided. A system of interest includes: a plurality of sample processing modules; a plurality of robotic components integrated with the sample processing module; a processor including a memory operably coupled to the processor, where the memory includes instructions stored thereon that, when executed by the processor, cause the processor to control the sample processing module and the robotic assembly, to: operate the sample processing module and robotic assembly to prepare a plurality of samples for flow cytometry analysis; and an operable connection between the processor, the sample processing module, and the plurality of robotic components. Systems according to certain embodiments also include a flow cytometer, where the plurality of robotic components are further integrated with the flow cytometer, where the memory further includes instructions stored thereon, the instructions, when executed by the processor, cause the processor to control the sample processing module, the robotic assembly, and the flow cytometer to: load each prepared sample of the plurality of samples into the flow cytometer; and operating the flow cytometer to analyze each prepared sample of the plurality of samples, wherein the operable connection operably connects the processor, the sample processing module, the flow cytometer, and the plurality of robotic components together. Methods of use and configurations or designs of the system are also provided.

The application discloses a controllable liquid level parallel automatic solid phase extraction instrument, and belongs to the field of analytical chemistry sample pretreatment. The extraction instrument comprises a liquid adding system, a solid phase extraction column array unit and a collecting tube device which are electrically connected with a control system. The solid phase extraction column array unit is arranged below the liquid adding system, and the collecting tube device is arranged below the solid phase extraction column array unit. The liquid adding system comprises a liquid adding pipe for adding reagents to the solid phase extraction column array unit. The extraction column has the function of automatically controlling or maintaining the liquid level, and the diameter and height of each component of the extraction column can be flexibly adjusted according to the requirement. The liquid level in the extraction column can be monitored, all the extraction columns can simultaneously and in parallel process samples, and the sample processing efficiency and reliability are improved.

The utility model relates to the technical field of liquid chromatogram detection, and discloses a liquid chromatogram detection sample processing device which comprises a base, a vibration screening mechanism for liquid chromatogram detection samples and a feeding mechanism, and the screening mechanism and the feeding mechanism are both installed on the base. The feeding mechanism is arranged at the upper part of the vibration screening mechanism; the feeding mechanism comprises a box cover, a plurality of supporting columns are fixedly connected to the outer wall of the box cover, the supporting columns are fixedly installed on the base, a feeding pipe is fixedly connected to the top of the box cover, a motor is fixedly installed on the feeding pipe, the motor is connected with a rotating shaft through an output shaft, a conical material distribution disc is fixedly connected to the lower portion of the rotating shaft, and the conical material distribution disc is fixedly connected to the top of the box cover. A plurality of stirring rods are fixedly connected to the outer wall of the rotating shaft, and an annular conical material receiving disc is fixedly installed on the lower portion of an inner cavity of the box cover. According to the utility model, material distribution is more uniform, blanking can be buffered, and the screen is protected.

A biological sample processing device including a blood filtration module and an extraction module incorporated within a common housing. The blood filtration module has a dual filter structure. The extraction module includes a series of chambers that hold agents to effect any one or more of lysis, binding of target material to capture beads, washing, elution, and / or nucleic acid amplification. Moveable magnets are used to move the beads through the chambers to perform the extraction process. A second magnet-based device for preparing largely pure plasma samples from whole blood in the field.

The invention provides a non-contact microscope control method and system based on a brain-computer interface, and relates to the technical field of microscope control, and the method comprises the steps: collecting a brain wave signal generated when a user executes a target psychological task through a brain wave signal collection device, recognizing the brain wave signal by using a pre-trained target intention recognition model to determine a control instruction, and controlling the microscope body to execute a corresponding operation function or controlling the microscope sample processor to execute a sample processing function based on the instruction; the training set of the target intention recognition model is a data set containing brain wave signal samples and corresponding idea instruction samples, and the brain wave signal samples are signals generated based on multiple brain-computer interface normal forms. Various brain-computer interface paradigms are fused, the requirement of complex operation of the microscope for instruction diversity is met, different brain wave signals are mapped to various operation functions of the microscope respectively, and full-function control without touching the microscope body by hands can be achieved through the brain wave signals.

The application relates to the field of microorganism detection, in particular to a respiratory virus rapid detection kit based on ZIF-8 material and a preparation method, wherein the kit comprises a virus collecting device, an exhalation cylinder and a ZIF-8 membrane, the ZIF-8 membrane is detachably arranged in the exhalation cylinder, the ZIF-8 membrane comprises a chitosan layer, the chitosan layer is uniformly distributed with ZIF-8 material, virus particles in the exhaled gas of a tester through the exhalation cylinder are adsorbed, a sample processing device comprises a processing liquid, the processing liquid elutes and lyses the virus particles adsorbed by the ZIF-8 material distributed on the chitosan layer, and a virus processing liquid is obtained, a detection reagent is used for detecting the virus processing liquid and giving a detection result, sampling is simple and rapid, the detection can be completed without the participation of professionals, sampling efficiency is higher, and the detection sensitivity is effectively improved.

The invention provides a food heavy metal content detection device, and relates to the technical field of food detection.The food heavy metal content detection device comprises a detection table, a sample treatment cylinder is arranged on the left side of the upper end of the detection table, a detection cylinder is arranged in the middle of the upper end of the detection table, and a sample cup is placed in the middle of the inner side of the detection cylinder; a sponge plug is arranged on the right side of the upper end of the protective cover, a main control box is arranged on the right side of the upper end of the detection table, and a control screen is arranged in the middle of the upper end of the main control box; a pretreatment assembly is arranged in the middle of the inner side of the sample treatment cylinder and comprises a cutting frame, a net-shaped cutting net knife is mounted in the middle of the inner side of the cutting frame, a stirring knife is arranged in the middle of the upper end of the cutting net knife, and the stirring knife is driven by a first motor. The pretreatment assembly is arranged in the middle of the inner side of the sample treatment cylinder, so that the mixing efficiency and uniformity of a food sample and a solvent are effectively improved.

The present invention relates to a cuvette assembly for a sample processor, a flow cell for a sample processor comprising a cuvette assembly, and a sample processor comprising a cuvette assembly or a flow cell. The cuvette assembly (300) comprises a cuvette body (310) and a reflector (330). The cuvette body is in the shape of a rectangular parallelepiped and comprises a sample detection channel passing vertically through the cuvette body. The cuvette body has long and short sides in horizontal cross section. The reflector has a flat surface attached to a first side extending along one of the long sides of the cuvette body, and a spherical surface facing the flat surface and cut off at its lower half. The reflector is flush with the lower surface of the cuvette body and is positioned such that the center of the sphere of the spherical surface is placed in the sample detection channel and the reflector extends along the long side and beyond the short side.

A system module configured to be installed into and removed from a separate fluid sample processing system can include an aspiration submodule, a pneumatic submodule, and a control submodule. The aspiration submodule can be configured to receive a chip module having assay devices and to provide aspiration for the chip module. The pneumatic submodule can be coupled to the aspiration submodule and can include passages configured to deliver vacuum to and receive fluids from the chip module and valves coupled to the passages. The control submodule can be coupled to the pneumatic submodule and can include a controller configured to operate the valves. The aspiration submodule can include a lid that allows the chip module to be inserted and removed and can be configured to perform operations on the chip module when it is within the aspiration submodule and the lid is closed.

A device for handling core samples during a core sample drilling operation is disclosed. In use the core sample is received in a string of inner tubes within a drill string. The device includes a clamp and a coupling mechanism. The clamp is configured to grip a lower inner tube below a joint between the lower inner tube and an adjacent upper inner tube of the string of inner tubes, with the lower tube received in the drill string and with the joint exposed above a top end of the drill string. The coupling mechanism is configured to engage the upper inner tube and / or the joint and operate to uncouple the upper inner tube from the lower inner tube.

The invention relates to the technical field of fuel intelligent management and control, and particularly discloses a sampling and processing integrated automatic control method and system based on batch management. The method comprises the following steps: firstly, creating a full-process dynamic data file with a unique identifier ID for each batch of materials; in the sampling link, a sample is bound with the intelligent container, and the multi-dimensional identity features are associated; in the sample processing process, operating parameters are collected in real time and compared with a preset standard, and the process confidence coefficient of the data file is dynamically calculated and updated; during sample circulation, bidirectional ID verification is carried out through a handshake request, decision making is carried out in combination with the process confidence coefficient, and subsequent equipment is authorized to be started only when verification is passed and the confidence coefficient is higher than a safety threshold value; when the sample is segmented, the data file is also split and completely inherits historical information. Through active inquiry and dynamic evaluation, forced consistency of physical samples and digital information in the whole process is realized, and the reliability of quality detection results is ensured.