142 results about "Autosampler" patented technology

The utility model relates to a two-dimensional liquid phase system which comprises a hydrophilic interaction chromatographic column, a reversed-phase chromatographic column, a detector, an automatic sample injector, a first pump assembly, a second pump assembly, a sample temporary storage unit and a switching valve, the first pump assembly is communicated with the hydrophilic interaction chromatographic column and is used for pushing a sample loading solution and carrying out gradient elution on the hydrophilic interaction chromatographic column; the second pump assembly is communicated with the reversed-phase chromatographic column and is used for carrying out gradient elution on the reversed-phase chromatographic column; wherein the switching valve comprises a first double-four-way valve and a second double-four-way valve which are communicated with each other; the switching valve has at least two connection states through position switching: state 1: the switching valve communicates a liquid inlet of the detector with a liquid outlet of the hydrophilic interaction chromatographic column; and state 2: the switching valve communicates the liquid inlet of the detector with the liquid outlet of the reversed-phase chromatographic column, and communicates the first port of the sample temporary storage unit with the liquid inlet of the hydrophilic interaction chromatographic column. The system can realize one-time analysis of a multi-component target object with relatively large polarity difference.

The invention relates to a urine metabolism combined marker for diagnosing bladder cancer and a screening method of the urine metabolism combined marker. The urine metabolism combined marker is prepared from 2-methyl furan, dimethyl disulfide, octylene and acetophenone. The method for screening the urine metabolism combined marker comprises the following steps: carrying out chromatographic separation and mass spectrometry detection on a urine sample on the basis of a headspace automatic sampler in combination with a chromatographic column and a photochemical ionization time-of-flight mass spectrometry, preprocessing mass spectrometry data, and extracting spectrum peak data of metabolites in urine; the urine metabolism combination marker for diagnosing bladder cancer is obtained through further statistical analysis. The screening method of the urine metabolism combined marker for diagnosing the bladder cancer has the advantages of non-invasiveness, high-throughput detection, simplicity in operation and accurate result, and has a wide application prospect.

1. Name of the Design Product: Method Editing Graphical User Interface for Electronic Devices (Second Generation). 2. Use of the Design Product: The design product is used for running programs and displaying information. 3. Design Key Points of the Design Product: Lies in the content of the graphical user interface. 4. Picture or Photo that Best Illustrates the Design Key Points: Front View. 5. Use of the Graphical User Interface: Used to control a liquid chromatography tandem mass spectrometer and perform method editing, for the preliminary preparation of batch automated collection and analysis of human samples (such as blood). 6. Human-Machine Interaction Method of the Graphical User Interface: The front view is the home page of method editing. Click "Create" in the front view to enter Interface Variation State Diagram 1, where a drop-down box appears to display options in the selected template; click "Empty Template" in the drop-down box of Interface Variation State Diagram 1 to enter Interface Variation State Diagram 2, where a "New Method Name" pop-up window appears; after entering the method name in the "New Method Name" pop-up window in Interface Variation State Diagram 2, click "OK" to enter Interface Variation State Diagram 3; click "Autosampler" in Interface Variation State Diagram 3 to enter Interface Variation State Diagram 4; click "Column Oven" in Interface Variation State Diagram 4 to enter Interface Variation State Diagram 5, click "Injection Valve" in Interface Variation State Diagram 5 to enter Interface Variation State Diagram 6, click "Collection Parameters" in Interface Variation State Diagram 6 to enter Interface Variation State Diagram 7, click "Analysis Parameters" in Interface Variation State Diagram 7 to enter Interface Variation State Diagram 8, click "Sample List" in Interface Variation State Diagram 8 to enter Interface Variation State Diagram 9; click "Other Settings" in Interface Variation State Diagram 9 to enter Interface Variation State Diagram 10.

The utility model provides a sample box structure and an automatic sampler, the sample box structure comprises a sample box assembly, the sample box assembly comprises a sample box body and an identification member, the sample box body is provided with sample holes of at least one specification, the sample holes are distributed along a first direction and a second direction, the first direction is perpendicular to the second direction, the identification member is connected to one side of the sample box body, and the identification member is connected to the other side of the sample box body. The identification piece is arranged on the sample box body, located on the outer side of the sample box body and provided with an identification part in the first direction or the second direction; and the detection assembly is provided with a detection part, and the detection part is configured to be used for identifying the identification part. The detection assembly is placed at the recognition part and used for recognizing the recognition parts of the recognition part, the type of the sample box assembly can be distinguished according to the positions and / or the number of the recognition parts, and therefore the recognition problem of the sample box assembly is solved, and the recognition effect is remarkable.

The invention relates to the technical field of biological analysis, in particular to a fish and crustacean biological analysis device which comprises a placing frame and a mobile phase solvent bottle placed in the upper portion of the placing frame, a vacuum degassing box is connected to the lower portion of the placing frame, and a high-pressure pump box is connected to the lower portion of the vacuum degassing box. A sample injection box is connected to the lower part of the high-pressure pump box, a detection box is connected to the lower part of the column oven, an automatic sample injector is arranged in the sample injection box above the placing frame, and a chromatographic column is connected to the interior of the column oven. According to the biological analysis device for the fishes and the crustaceans, through slight shaking in multiple directions, the uniform shaking efficiency and effect of a sample solution in the sample solvent bottle can be improved, the situation that particles settle to the bottom of the bottle and are layered due to long-time standing of the sample solvent bottle is avoided, the concentration of the sample solution sucked by an automatic sample injector is uniform, and the accuracy of the sample solution is improved. Therefore, the accuracy of the detection result of the biological analysis device can be improved, and the biological analysis work of fishes and crustaceans cannot be influenced.

Systems and methods for automated cap removal with an autosampler system are described. In an aspect, an autosampler system includes, but is not limited to, a sample rack; a sample vessel stabilizer configured to transition the sample rack between a load / unload state and a lock state; an uncapper supported by a first z-axis support; and a sample probe supported by a second z-axis support, wherein the uncapper is configured to remove a cap from a sample vessel held by the sample rack when the sample rack is in the lock state, and wherein the uncapper is configured to change the position of the removed cap to permit access to an interior of the sample vessel by the sample probe without removing the sample vessel from the sample rack.

1. The name of the design product: liquid autosampler. 2. The use of the design product: quantitatively inputting and outputting liquid samples, and providing automatic sampling function for instruments requiring liquid samples. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo best indicating the design points: perspective view.

This product is an autosampler (sample collection device) used for dispensing samples such as liquids. As shown in the reference diagram illustrating the usage state, this product comprises an arm that is movable in the X direction and an injection unit attached to the arm that is movable in the Y direction. This product is used by appropriately changing the positions of the arm and the injection unit above a plurality of test tubes supported by a rack or the like, and injecting the sample from the injection unit into any test tube.

The utility model discloses an automatic sample injector of a fluid chromatography system, which comprises a cylinder body, the right end of the cylinder body is fixedly connected with a liquid discharge pipe, the left end of the cylinder body is fixedly connected with a communicating pipe, the upper end of the communicating pipe is fixedly connected with a fixed pipe, the top of the cylinder body is fixedly connected with a hydraulic cylinder, and the top of the cylinder body is fixedly connected with a liquid discharge pipe. The output end of the hydraulic cylinder is slidably connected with the barrel, the lower end of the output end of the hydraulic cylinder is fixedly connected with a pressing rod, the lower end of the pressing rod is fixedly connected with a pressing plate, a conveying mechanism is arranged on the liquid discharging pipe, and a supplementing mechanism is arranged on the communicating pipe. Through the design of the hydraulic cylinder, the output end of the hydraulic cylinder can drive the pressing plate and the sealing ring to move downwards, samples in the barrel body can be extruded and input into the liquid discharging pipe, the baffle can be pushed to move rightwards to be separated from the liquid discharging pipe to achieve automatic sample feeding work, the baffle cannot move leftwards, and the situation that follow-up detection work is affected by backflow of the samples can be avoided.

The utility model discloses an automatic sample injector of a high-frequency infrared carbon and sulfur analyzer, which comprises a device main body, a control panel is connected to one position of the surface of the device main body, supporting legs are connected to one position of the bottom end of the device main body, an analyzer main body is connected to one position of the upper end of the device main body, and a hinge is connected to one position of the surface of the analyzer main body. One end of the hinge is connected with a safety door, one position of the surface of the device main body is provided with a slideway, one end of the device main body is connected with a motor, one end of the motor is connected with a screw rod, the screw rod is connected with a moving block, the top end of the moving block is connected with an electric push rod, and the top end of the electric push rod is connected with a telescopic column; according to the automatic sample injection device, the lead screw is driven by the motor to rotate, so that the crucible enters the analyzer main body, and the crucible enters the experiment cavity through the electric push rod, so that the automatic sample injection is completed, and the problems and defects of the existing device are effectively solved.

The invention discloses a continuous flow method carbonate carbon and oxygen isotope determination method based on nitrogen instead of helium. The method comprises the following steps: carrying out nitrogen purging on a headspace bottle filled with a sample by using high-purity nitrogen carrier gas; the headspace bottle added with phosphoric acid for reaction is put into an automatic sample injector, and CO2-containing mixed gas to be detected is carried by high-purity helium carrier gas to be transferred in an analysis gas path; in the transferring process, target gas CO2 in the CO2-containing mixed gas to be detected is purified, and N2O generated in the ion source and N2 transmitted into the ion source by the helium carrier gas are diluted; the helium carrier gas carrying the target gas CO2 and the diluted N2O and N2 sequentially enters a gas isotope mass spectrometer for determination after passing through a continuous flow shunting interface, and a carbon and oxygen isotope test result of the target gas CO2 is obtained. According to the invention, the technical prejudice that only helium flow can be adopted for purging the headspace bottle in the prior art is overcome, the high-precision test result of the carbonic acid rock carbon and oxygen isotope can be obtained, and the test cost is reduced.

Systems for washing a probe, such as a pipette of an autosampler. The systems comprise a magnetically active component disposed within a probe cleaning well. Application of a magnetic field to the magnetically active component draws cleaning fluid into the well. The accumulating cleaning fluid spills over an edge of the well and is drained away, while fresh cleaning fluid is drawn into the well.

A segmented sample handling tray includes a plurality of sample handling segments, each sample handling segment includes a plurality of sample positions for sample containers; wherein the segmented sample handling tray transitions between a compact two-dimensional array configuration and an extended linear configuration by at least partially separating the plurality of sample handling segments.

The utility model relates to detection equipment for continuous sample introduction of electronic gas absorption liquid. The detection equipment comprises an ion chromatograph, a peristaltic pump and at least one group of sample introduction components, each group of sample introduction assembly comprises a plurality of gas absorption bottles, a cleaning bottle and a first switching valve, the first switching valve is provided with a plurality of first liquid inlets and a first liquid outlet, the gas absorption bottles and the cleaning bottle are respectively communicated with the corresponding first liquid inlets, the first liquid outlet is communicated with the ion chromatograph, and the first liquid inlet is communicated with the ion chromatograph; a peristaltic pump for providing power for liquid feeding of the ion chromatograph is arranged on an output pipeline of the ion chromatograph; the detection equipment disclosed by the utility model adopts a simple and low-cost structure to replace an existing automatic sampler, and a high-cost long-time nitrogen protection mode is not needed; under the condition of ensuring that the samples are not in contact with the external environment, automatic and continuous sample injection of a plurality of samples is realized, and the accuracy of ultra-trace detection of anions and cations in the electronic gas absorption liquid can be ensured in a specific detection scene aiming at the electronic gas absorption liquid.

The invention relates to an integrated full-scene adaptive total phosphorus rapid detection platform, which comprises a raw water collection module, a sample digestion module, a sample introduction reaction module and a detection module, the raw water collection module comprises an automatic sample injector capable of automatically switching a plurality of sample tubes and / or online water samples to collect raw water; the sample digestion module comprises sulfuric acid mixed with a sample, a heating reactor, potassium persulfate mixed with a mixed solution and an ultraviolet digestion device, and the sample introduction reaction module comprises a color developing agent mixed with the sample subjected to ultraviolet digestion, ascorbic acid mixed with the mixed solution and a heating reactor. The detection module comprises a flow cell of a final reaction product and a detector, and a plurality of modules of raw water collection, sample digestion, sample introduction reaction, detection and the like are integrated into a whole, so that full-process automatic operation from raw water collection to final detection result output is realized.

The present application provides a flow path cleaning method for an automatic sampler, which can balance the decrease of analysis throughput and the increase of cleaning solution consumption. In a flow path cleaning process (S12), when a cleaning solution is supplied by a cleaning solution supply mechanism to a flow path switched by a flow path switching mechanism among a first flow path including a nozzle for sucking a sample and a sample ring for holding the sample sucked from the nozzle, and a second flow path including a cleaning tank for cleaning at least an outer wall of the nozzle, a control device changes a flow rate of the cleaning solution supplied between measurement of a first measurement item of the sample and measurement of a second measurement item of the sample, based on first cleaning information indicating a cleaning mode corresponding to the first measurement item of the sample, and second cleaning information indicating a cleaning mode corresponding to the second measurement item of the sample measured after the first measurement item.

The utility model discloses an automatic sample injector sample disc of an element analyzer. The automatic sample injector sample disc comprises an upper disc, a lower disc and an air interference prevention cover, the middle of the lower disc is rotationally connected with the upper disc, a second through hole is formed in the edge of the lower disc, first through holes which are evenly distributed are formed in the edge of the upper disc, the second through hole corresponds to the vertical adjacent first through hole in the vertical direction in position, helium used by instrument reference gas is clean, the path of helium can be used, and the path of helium can be used; the helium gas purges the sample in the sample introduction disc through the through hole II and the through hole I; the air interference prevention cover is movably arranged on the upper surface of the upper disc in a sleeving mode and can prevent helium from being directly emptied through the second through holes and the first through holes, the intercepted helium is dispersed into all vacancies of the sample disc to eliminate original air interference, and the first through holes are all located in the lower end of the air interference prevention cover; the clamping holes of the sample disc of the automatic sample injector of the elemental analyzer are communicated through the grooves, so that purging helium can flow through the surface of a sample for purging, and original air interference can be eliminated.

An electrophoresis device of the present disclosure includes: a capillary filled with a phoresis medium; a buffer container accommodating a buffer solution; a storage portion storing a sample container accommodating a sample; at least one autosampler transporting each of the sample container and the buffer container; and a control unit controlling driving of the autosampler, in which the control unit drives the autosampler such that, while the buffer container is disposed at a capillary position where one end portion of the capillary is positioned, the sample container is transported from the storage portion to a standby position near the capillary position, and, when the buffer container has been transported from the capillary position to the standby position, the sample container is transported from the standby position to the capillary position.

To provide devices and methods of using the devices that enable automated nano / micro / millifluidic sampling from one or more containers.SOLUTION: A process of automated analysis comprises an automated flow, where samples comprise liquid or particles in a sample vessel, and where devices comprise an assembly of components that enable processing of a sample for analytical assessment by fluidic and / or particle-based instruments. The automated flow may comprise systems for moving samples including vacuum systems, pressure-based systems, pneumatic systems, pumps, peristaltic pumps, diaphragms, or syringes. The devices may comprise an assembly of components that enable movement in X, Y and Z dimensions, as well as switches, microfluidic tubing, well plate blocks, electronic pressure controllers, pneumatic or fluidic mixing devices, components for fluid handling, sampling vessels, and mechanical components for translating or transporting system components.SELECTED DRAWING: Figure 1

A stirring device for a sample holder for automatically analyzing a multiplicity of samples, comprising: a sample holder frame for regularly arranging a multiplicity of sample vessels; a sample holder base plate, which is arranged under the sample holder frame and comprises at least one channel or a recess for receiving a temperature control medium such that the temperature of a sample vessel arranged in the sample holder frame can be controlled; an agitator, arranged in or under the sample holder base plate and configured to set a stirring rod comprising a ferromagnetic material in rotation in the sample vessel in a contactless manner when the sample vessel and the agitator are arranged one above the other, such that a finely dispersed material contained in a fluid in the sample vessel is suspended; and a drive unit, configured to change a position of the sample vessel in relation to the agitator or a position of the agitator in relation to the sample vessel such that, in a first position set by the drive unit, a first sample vessel can be arranged above the agitator and, in a second position set by the drive unit, a second sample vessel can be arranged above the agitator.

To provide an automatic sampler for a liquid chromatography provided with a dilution tank and a dilution pipeline which enhance haemolysis / dilution efficiency in a compact and inexpensive manner.SOLUTION: An automatic sampler for a liquid chromatography is provided with an automatic sampler part which contains an aspirator and an ejector for a biological specimen of an analysis object and cleaning fluid, and a dilution unit. The dilution unit is provided with a dilution block containing a dilution tank, a pump which sucks and discharges a blend of the biological specimen of the analysis object and the cleaning fluid, and a dilution device which fluidly connects the dilution tank and the pump.SELECTED DRAWING: Figure 1

The utility model discloses a detection device for door opening and closing of an automatic sampler, which relates to the technical field of automatic samplers and is mounted on a box body, an instrument and a master controller which are electrically connected with each other are arranged in the box body, and an observation window is arranged on the box body; the detection device comprises a frame structure arranged at the observation window and a detection unit arranged on the frame structure, and the frame structure covers the observation window; and the detection unit is electrically connected with the master controller. The door opening and closing action affects the action of the microswitch, and the microswitch acts to control the color change of the lamp strip through the master controller so as to detect the opening and closing states of the cover body relative to the frame body; on the other hand, the lamp strip is electrically connected with the instrument in the box body, the operation state of the instrument can be known by observing the lamp strip, and external personnel can conveniently observe the operation state of the instrument in the box body through the transparent plate.

The utility model relates to the technical field of detection equipment, in particular to an automatic sampler of a gas chromatograph-mass spectrometer. Comprising a base, a rotary feeding mechanism, a material disc, a sample bottle and a sample injection mechanism, the sample injection mechanism comprises a mounting plate, an air cylinder, a movable plate, an abutting ring, a sliding arm, a connecting pipe, a sample injection needle, an in-place switch, a locking block, a descending device and a locking device, the descending device acts to drive the sample injection arm to descend so that the sample injection needle can descend to be inserted into the sample bottle, and then extraction equipment is started; the control system controls the descending device to act to drive the sample injection needle to move upwards to be separated from the sample bottle, at the moment, the abutting ring keeps abutting against the top of the sample bottle, so that the sample bottle cannot be taken away from the material disc when the sample injection needle moves upwards, and then the air cylinder acts after the sample injection needle moves upwards and resets; the movable plate is pushed to move upwards, then the locking device is reset, and the rotary feeding mechanism continuously feeds the sample, so that the sample bottle can be prevented from being taken out of the sample injection mechanism by the sample injection needle during sample injection.

The application discloses a kind of full-automatic specific surface area analyzer auxiliary devices, including automatic sampler, vacuum joint and sample tube locking mechanism, automatic sampler includes drive part, sample rack, drive part drives sample rack and moves horizontally between first position, second position, and lifts between first working position, second working position Action;Vacuum joint is installed at first position, with flexible sealing interface that can be inserted with sample tube and is communicated with vacuum channel and can be sealed;Sample tube locking mechanism is installed at second position, including clamping table with sample tube entrance, flexible locking ring installed on clamping table and locking drive unit, flexible locking ring has sealing mouth for sample tube insertion, and locking drive unit extrudes flexible locking ring relative to clamping table to make flexible locking ring lock sample tube.The application can realize sample tube automatic feeding and locking, and assist specific surface area analyzer to complete full-automatic test.The application also discloses a kind of specific surface area analysis system.

The invention aims to simplify setting of automatic continuous analysis. A control device (700) included in a sample analysis system is provided with: selection receiving units (701, 702, 706, 707) for displaying buttons corresponding to each sample container (201) inside an autosampler (200) and each liquid supply unit (300, 400, 500) provided outside the autosampler, and allowing a user to select an appropriate button; meanwhile, a liquid supply control unit (703) is provided which, when a button corresponding to the sample container is selected, controls the autoinjector so as to insert the injection needle (206) into the sample container corresponding to the button, and which, at the same time, controls the flow path switching valve so as to connect the autoinjector and the sample analysis device. When the button corresponding to the liquid supply part is selected, the control unit controls the flow path switching valve to connect the liquid supply part corresponding to the button to the sample analyzer, and controls the autosampler to make the sample injection needle (206) reach the standby position (209) at the same time.

Provided is an autosampler of a liquid chromatograph that can manage a sample container even in a case where the throughput of a pretreatment unit exceeds the throughput of the autosampler.An autosampler of a liquid chromatograph includes a plurality of sample aspiration nozzles that aspirates a sample from sample containers installed at respective sample aspiration points; a sample transfer means that transfers the sample containers to the respective sample aspiration points; and a retraction point where one of the sample containers is put into the autosampler and one of the sample containers collected from the sample aspiration points can be held.

Systems and methods for preventing the release of metal particles from an autosampler that might otherwise be detected within a sample during sample analysis are described. In an exemplary embodiment, an autosampler system includes, but is not limited to, a sample probe support structure; a z-axis support; an outer shuttle coupled with an outer surface of the z-axis support; and an inner shuttle linearly movable within an interior volume of the z-axis support, the inner shuttle being magnetically coupled with the outer shuttle to transfer linear motion of the inner shuttle to the outer shuttle.

The utility model discloses a preposed purification system of a detection instrument, which comprises an automatic sample injector, a cracking furnace and a mode dryer, the automatic sample injector is arranged at the top of the cracking furnace, a sample in the cracking furnace is vaporized and enters a purifier through a sample feeding pipe, the purifier is connected with the mode dryer through a gas sample pipe, and the sample is fed into a reaction chamber after being dried; the purifier comprises a purification chamber, a distributor and purification liquid, the distributor which is located in the purification chamber and used for distributing gas samples is arranged at the output end of the sample feeding pipe, and the gas samples are evenly distributed in the purification liquid stored in the purification chamber. According to the front purification system of the detection instrument, the purifier is additionally arranged between the cracking furnace and the mode dryer, and after black carbon, impurities and a gas sample pass through the purifier, most of the black carbon and the impurities can be filtered, so that the service life of the mode dryer is prolonged, and the mode dryer and reaction and optical signal processing equipment can be effectively protected; the damage probability and frequency are reduced, and the maintenance cost is reduced.