195 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.

The present invention provides a plate supply system, a plate changer and an analysis device that can flexibly cope with the number of plates that can be supplied to an automatic sampler according to user needs. The present invention provides a plate changer that supplies a plate containing a sample to an automatic sampler included in an analysis device, and includes: a receiving portion that receives the plate; and a plate conveying device that conveys the plate by holding the plate, and the plate conveying device receives the plate from a first plate changer disposed on one side of the plate changer, and conveys the plate received from the first plate changer to a second plate changer or an automatic sampler disposed on the other side of the plate changer, or conveys the plate contained in the receiving portion to the second plate changer or the automatic sampler.

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.

A liquid chromatograph autosampler (100) for collecting a sample from a vial containing the sample by using a movable needle (114) and injecting the sample into a mobile phase flowing toward an analysis column includes one or more tray mounting regions (120) for mounting a vial tray that holds the vial, and is provided with a sample rack (104) arranged at a position defined so as to enable sampling of the sample from the vial by the needle (114). The tray mounting region (120) of the sample rack (104) is defined as a flow vial mounting region for mounting a flow vial (200).

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 present invention simplifies setting for automatic continuous analysis. This sample analysis system comprises a control device (700). The control device (700) includes: a selection receiving unit (701, 702, 706, 707) that displays buttons respectively corresponding to sample containers (201) inside an automated sampler (200) and liquid supply units (300, 400, 500) provided outside the automated sampler, and allows a user to select an appropriate one of the buttons; and a liquid supply control unit (703) that, upon one of the buttons corresponding to the sample containers being selected, controls the automated sampler so that a sampling needle (206) is inserted into the sample container corresponding to the selected button and controls a flow path switching valve so that the automated sampler and a sample analysis device are connected, and upon one of the buttons corresponding to the liquid supply units being selected, controls the flow path switching valve so that the liquid supply unit corresponding to the selected button is connected to the sample analysis device and controls the automated sampler so that the sampling needle (206) moves to a standby position (209).

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.

1. The name of the product of this design: automatic sample injector. 2. Purpose of the product of this design: used in conjunction with a chromatography system to automatically deliver samples into the chromatographic column. 3. The design key point of this appearance design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

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.

The utility model belongs to the technical field of experimental equipment, and provides an adjustable connecting device for connecting a Suma tank and an automatic sampler, which comprises a sleeving seat, the sleeving seat is provided with an opening which is communicated up and down, and the front and rear side walls of the sleeving seat are provided with sleeving through holes; the plate sleeve is arranged on at least one of the left side and the right side of the sleeving seat and fixedly connected with the sleeving seat, and a longitudinal through groove is formed in the plate sleeve; the clamping top plate is movably arranged in the longitudinal through groove in a penetrating mode, and clamping top grooves are formed in the two ends of the clamping top plate. The adjustable connecting device for connecting the Suma tank and the automatic sample injector is simple in structure, convenient and fast to use and capable of being matched with the Suma tanks of various different sizes and specifications so that the Suma tank can be stably and reliably fixed to the automatic sample injector, the position of the Suma tank can be changed by moving the clamping top plate up and down, and the automatic sample injector is convenient to use. Therefore, the sample inlet of the Suma tank and the interface of the automatic sample injector are close to each other and are butted, so that large dislocation of the two is avoided, and the connection difficulty 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 discloses a qualitative analysis method of fluorine-containing quaternary ammonium salt ionic liquid, which comprises the following steps: S1, preparation of a sample to be detected: adding the sample to be detected into a nuclear magnetic tube, then adding a deuterated reagent, and fully and uniformly dissolving for later use; s2, parameter point inspection before use of the nuclear magnetic resonance spectrometer: liquid helium is greater than or equal to 40%, liquid nitrogen is greater than or equal to 40%, an automatic sampler is well connected with the NMR, and a standard sample shimming result meets instrument requirements; the temperature of the differential thermal analyzer is 0-600 DEG C; and S3, detecting by using a nuclear magnetic resonance spectrometer and a differential thermal analyzer according to the use requirements of the instrument. The detection method provided by the invention is simple and rapid to operate, high in efficiency and environment-friendly. According to the invention, a criterion is provided for the qualification of the fluorine-containing quaternary ammonium salt ionic liquid, and the qualitative problems of large molecular weight and complex structure of the ionic liquid are solved.

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

The invention relates to the technical field of column chromatography, and in particular to a fast-switching chromatographic column thermostat and a switching method. The fast-switching chromatographic column thermostat comprises a chromatographic column thermostat body, a first chromatographic column, a second chromatographic column, a first six-way valve, a second six-way valve, a first inlet pipe, a first outlet pipe, a second inlet pipe and a second outlet pipe. The first chromatographic column and the second chromatographic column are arranged so as to test two items separately. By switching the first six-way valve and the second six-way valve to change the flow direction of the solvent, the switching of different connection modes between an automatic sampler and a chromatographic column and between a chromatographic column and a mass spectrometer can be realized, so as to reduce the contamination of the chromatographic column and the mass spectrometer by substances other than an object to be tested during the test and analysis process, and to improve the sensitivity of the detection and analysis and the tolerance and durability of the instrument.

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