21 results about "Autosampler" patented technology

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.

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 application belongs to the technical field of analytical chemistry instruments, and particularly relates to a liquid chromatography automatic sampler control method and system based on pressure feedback, wherein the method comprises the following steps: acquiring a real-time pressure value in a high-pressure flow path of a liquid chromatography system; determining a target sealing force required for maintaining sealing under the current pressure; converting the target sealing force into a target displacement amount required to be executed by a Z-axis driving mechanism according to an elastic coefficient of an elastic element arranged in series between the Z-axis driving mechanism and a sampling needle; and when a critical position where the sampling needle contacts a sealing assembly is detected, controlling the Z-axis driving mechanism to continue moving from the critical position by the target displacement amount, so that the elastic element is deformed and the target sealing force is applied to the sampling needle. The application realizes dynamic sealing control according to needs, converts a complex force control problem into an accurate displacement control problem, significantly prolongs the service life of consumables such as sealing gaskets, and improves sealing reliability and sampling repeatability.

1. Name of the product in this design: Electronic Nose Autosampler. 2. Purpose of this design: to replace manual labor and enable odor analysis of large batches of samples. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.

A technique is provided that shortens the setup time for analytical methods by pretreating samples using SPE columns before analysis in the analytical unit. In the analytical system, a first flow path (21) includes one or more solid-phase separation columns. Samples from an autosampler (10) are introduced into either the first flow path (21) or the second flow path (22). The samples are then conveyed from either the first flow path (21) or the second flow path (22) via a switching valve (30) to the analytical column and detector (50) within the column oven (40). Sample purification is performed in the first flow path (21), while it is not performed in the second flow path (22).

Systems and methods for controlling sample dilution in an analytical instrument system comprise transmitting an injection command to an autosampler to inject a predetermined volume of air into a sample tubing coupled to an analytical instrument; and transmitting, subsequent to the injection of the predetermined volume of air, a fill command to the autosampler to aspirate a volume of sample into the sample tubing, wherein the predetermined volume of air is configured to form an immiscible barrier between the volume of sample and a solvent within the sample tubing.

1. Name of the product in this design: Electronic Tongue Automatic Sampler. 2. Purpose of this design: to achieve automatic cup changing and testing; to complete taste scanning and automatic cleaning to avoid cross-contamination. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: the front view.

The utility model relates to sample injector manufacturing technical field discloses a kind of automatic sample injector with oscillation function and sample detection equipment. Wherein automatic sample injector with oscillation function includes sample injection unit and oscillation unit, sample injection unit includes sample injection subassembly and bearing assembly, bearing assembly includes bearing platform and sample disc, sample disc is set on bearing platform, sample injection subassembly is set on the side of bearing platform, oscillation unit is set on the side of bearing platform away from sample injection subassembly, oscillation unit includes the clamping subassembly and oscillation drive piece connected, clamping subassembly is used to clamp sample disc, oscillation unit can oscillate to sample disc, so that oscillation unit and sample injection unit are relatively independent in spatial layout, reduce the risk of oscillation damage and facilitate its installation overhaul, simultaneously, oscillation unit does not need to be limited to the space structure below sample injection unit, and oscillation unit is added to sample injection unit without oscillation function, and online oscillation is realized.

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 system and method for removing the sample container cover and positioning the sample probe are provided. [Solution] The autosampler system comprises a z-axis support rotatable around the z-axis of an autosampler deck, a sample probe support structure coupled to the z-axis support, a sample probe support structure configured to hold a sample probe for collecting a fluid-containing sample held in a sample container supported by the autosampler deck, and a sample cap remover coupled to the z-axis support in a position offset from the z-axis in the rotational direction relative to the sample probe support structure, wherein the sample cap remover is configured to lift the cap from the sample container so that the inside of the sample container can be accessed by the sample probe supported by the sample probe support structure.

The application discloses a urine collection and analysis device for early diagnosis of neuroblastoma. The urine collection and analysis device comprises a collector for collecting instant urine of a patient, a valve pipe is installed through the collector, a centrifugal tank is clamped through the valve pipe, a negative pressure delivery pipe for absorbing centrifugal supernatant is connected through the centrifugal tank, a first negative pressure pump is installed on the negative pressure delivery pipe, the other side of the negative pressure delivery pipe is connected with a precipitation tank, and the precipitation tank is connected with a detection liquid storage tank through a negative pressure delivery hose. A sample distribution pipe is installed below the detection liquid storage tank, an automatic sampler is arranged below the sample distribution pipe, a plurality of samples prepared by the automatic sampler are sequentially conveyed to a chromatography control module and a mass spectrum detection module for rapid detection and analysis. The urine collection and analysis device can quickly collect, process and detect and analyze urine samples, so that neuroblastoma can be accurately diagnosed in a short time, and the diagnosis efficiency is improved.

This invention provides a pretreatment device for detecting OPO functional oils in dairy products. The pretreatment device includes an oil extraction module and a reagent loading module. The oil extraction module includes a total lipid extraction device, a functional oil separation device, an intermediate sample storage device, and a solid-phase extraction device. These devices are connected by a piping assembly equipped with valves. The reagent loading module includes an autosampler and a reagent storage device. The autosampler draws reagents and adds them to the functional oil separation device or the solid-phase extraction device. This invention enables fully automated total lipid extraction, separation of OPO and other functional oils, and removal of interfering substances from dairy products. It solves the problems of complex, time-consuming, inaccurate, and unsafe manual pretreatment of samples for detecting OPO and other functional oils in dairy products.

The application relates to the technical field of analytical instrument detection equipment, and discloses a chromatograph automatic sampler detection device which comprises a detection device main body, and a connecting end head is fixedly installed on the upper side of the detection device main body. The chromatograph automatic sampler detection device is connected with the detection device main body and the connecting end head, so that the automatic sampler main body can be connected, thereby the automatic sampler main body can be detected; then the clamping assembly can stably clamp the automatic sampler main body from both sides, displacement deviation caused by mechanical vibration is effectively inhibited, vibration energy during equipment operation is absorbed through flexible contact surfaces in cooperation with rubber floor mats, the overall stability is improved; then the protective cover forms a detachable protective structure through the insertion slot, the protective assembly is used to improve the protection performance of the device, electromagnetic shielding and physical isolation double protection are realized through the magnetic shield, the influence of external interference on the detection device is reduced, and the accuracy of detection data is improved.

The application is suitable for the technical field of automatic sample injector of liquid chromatograph, and provides an automatic sample injector, a control method and a controller of the automatic sample injector. The automatic sample injector comprises a shell, a rotating disc rotatably arranged at the bottom end of the shell, a sample disc arranged on the rotating disc and used for carrying a sample injection assembly, a slide rail set comprising a first slide rail and a second slide rail, a single depth camera arranged on the first slide rail and movable on the first slide rail, a sample needle assembly slidably arranged on the second slide rail, and a controller used for controlling the depth camera to collect a depth image of the sample disc. The controller can also determine a sampling position based on the depth image of the sample disc, and control the sample needle assembly to perform a sampling operation at the sampling position. The application can accurately locate the sampling position for sample injection assemblies of various specifications, and improve the accuracy and efficiency of sampling.

The utility model discloses an automatic sampler structure, including mounting bracket, install test tube installation subassembly on the mounting bracket, the test tube installation subassembly is including limit seat, magnetic block, test tube stand and adsorption seat, the magnetic block is fixedly connected through limit seat on the upper surface of mounting bracket, the utility model discloses the test tube stand is pulled by handle, and the test tube stand is away from automatic sample injection needle, can install sample test tube at this moment, and after installation, promote test tube stand reset, when test tube stand reaches predetermined position, and adsorption seat and magnetic block contact and adsorb, thereby realize the stable location of test tube stand, through being equipped with test tube installation subassembly, in the process of taking out or putting into test tube stand, can pull out test tube stand and away from sample injection needle, thereby reserve more abundant space for the installation or taking out operation of test tube, like this, sample injection needle no longer limit the operation space of hand, and effectively promoted the loading efficiency of sample.

This application provides a method for calibrating the position of an injection needle and an autosampler. The method includes: controlling the tip of the injection needle to move horizontally at a preset height from the injection port and then to an initial injection position; controlling an image acquisition device to acquire a first image including the injection port, and during the horizontal movement, controlling the image acquisition device to acquire multiple second images including the needle tip and the injection port; fitting the projection of the injection port in the image coordinate system based on the first image, as a first projection pattern; and fitting the projection of the movement trajectory in the image coordinate system based on each of the second images, as a second projection pattern; and determining the physical offset in the horizontal direction between the initial injection position and the center of the injection port based on the offset between the center of the first projection pattern and the center of the second projection pattern. This method can reduce calibration costs and improve calibration efficiency and accuracy.

Disclosed herein are scientific instrument support systems, as well as related methods, computing devices, and computer-readable media. For example, in some embodiments, samples are tracked using unique identifiers. An autosampler may detect the samples using unique identifiers and provide alerts when the sample is placed in the wrong location or when an incorrect or incompatible workflow is selected for the sample.

Systems and methods are described for preventing the release of metal particles from an autosampler that could otherwise be detected within a sample during sample analysis. In an example implementation, an autosampler systems 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 moveable within an interior volume of the z-axis support, the inner shuttle magnetically coupled with the outer shuttle to translate linear motion of the inner shuttle to the outer shuttle.

Disclosed herein are scientific instrument support systems, as well as related methods, computing devices, and computer-readable media. For example, in some embodiments, a scientific instrument support apparatus includes evaluation logic to identify a first syringe has a bent needle, a bent plunger, a blocked needle, or a stuck plunger; syringe logic to switch from the first syringe to a second syringe; and reporting logic to notify a user of a syringe problem.

Methods and systems are provided for the identification of sample cells in a sample tray that is placed in a chromatography autosampler. A cell gripper and labels are also provided to facilitate such identification.

This item is a drain tray for an autosampler (sample collection device) used to dispense samples such as liquids. As shown in the reference figures (1) and (2) illustrating the usage state, the autosampler is used by appropriately changing the positions of the arm and injection part above multiple test tubes supported by a rack or the like, and injecting the sample from the injection part into any test tube. As shown in the reference figures (1) to (3) illustrating the usage state, this item is installed above the drain receiving part of the autosampler (note that in reference figure (3) illustrating the usage state, this item is shown floating above the drain receiving part for illustrative purposes). This item is used to discharge samples such as liquids that have spilled from test tubes, etc., into the drain receiving part through the multiple holes in this item.