30 results about "Cuvette" patented technology

This invention relates to a method for simultaneously detecting *Salmonella typhimurium* and *Staphylococcus aureus* in chicken meat based on an instantaneous steady-state upconversion fluorescence sensor. First, a water-soluble upconversion material is encapsulated in a hollow cylinder to prepare an upconversion fluorescence cuvette. Next, a fluorescence sensor is constructed, comprising magnetic graphene oxide, aptamers specifically recognizing *Salmonella typhimurium* and *Staphylococcus aureus*, and enzyme modifications. By measuring the fluorescence signals, a detection standard curve for the two target bacteria is established. This method can determine the content of *Salmonella typhimurium* and *Staphylococcus aureus* in chicken meat. This invention improves the reusability of materials and the accuracy of detection results through the prepared upconversion fluorescence cuvette, simplifies the operation process and reduces costs by utilizing magnetic graphene oxide, and enhances the sensitivity of the sensor by utilizing enzyme catalysis. This detection method has a wide linear detection range and a low detection limit, showing promising application prospects.

The utility model provides a kind of efficient sample pesticide residue detection device, belong to pesticide residue detection technical field. Including detection device ontology, still include: quick assembly and disassembly component, quick assembly and disassembly component is placed in the side of detection device ontology, quick assembly and disassembly component includes the clamping plate being arranged in the side of detection device ontology, the inside of clamping plate is provided with cuvette, cuvette is array distribution on clamping plate, and the side close to clamping plate on cuvette is provided with elastic clamping plate;Portable component;By setting quick assembly and disassembly component, when cuvette is inserted and mounted to clamping plate, elastic clamping plate extrudes cuvette by the help of self elastic force, to be firmly fixed in clamping plate, achieve the integration effect of cuvette and clamping plate, push clamping plate, cuvette will move synchronously with clamping plate, insert and mount on clamping plate, after detection is completed, cuvette can also be taken out synchronously with clamping plate, reduce the repeated action in operation, improve the efficiency of detection process.

The present disclosure generally relates to particle manipulation and separation technologies, and more particularly relates to a method and a system for sorting particles Further, the method may include receiving, by a particle sorting system (100), a quantity of fluid includes particles with motility. Further, the method may include generating, by a rotating magnetic field using coils. Furthermore, the method may include disposing a cuvette. The cuvette may include suspension of the particles in deionized water vertically within the region of the decreasing rotating magnetic field strength, with a highest field strength at the bottom of the cuvette. Further, the method may include applying the rotating magnetic field at a fixed frequency to actuate the particles. Further, method may include maintaining the actuation until the particles reach respective equilibrium positions. Further, the method may include sorting the suspension into samples by extracting portions at heights within the cuvette.

A chamber for growing living organisms in space. The chamber has at least one receptacle for removably receiving a cuvette. The cuvette is maintained at atmospheric pressure and has a living organism inside and which is subject to space experimentation. The cuvettes have at least one transparent window for viewing the living organism and allowing light to reach the living organism inside the cuvette. The light may be integrated into the chamber. The chamber may be transported to and from outer space on a transport vehicle. The transport vehicle may be subjected to the vacuum of space during extra vehicular activities while the cuvettes remain at atmospheric pressure, protecting the living organism and allowing the experimentation to continue.

The utility model discloses a kind of ultramicro spectrophotometer cuvette detection structure, including operation platform, the rotating seat on the top of operation platform is rotatably connected with flip cover, main road optical fiber is equipped on the operation platform, the bottom of operation platform is also installed with cuvette placing box.The utility model passes through adopting double optical path design, pedestal and cuvette light path are independent, integrated design, without physical replacement spare part, by software selection "pedestal" or "cuvette card slot" mode, can effectively avoid cross contamination, when cuvette detection, directly cuvette is placed in the fixed slot beside pedestal, light path passes through incident optical fiber, aligns cuvette light transmission hole, the utility model structure is simple, without complex light path switching system, effectively solve the positioning problem and light energy loss problem of physical switching, improve the range of measurement, accuracy and reliability of equipment, convenient operation, convenient to carry, with higher practical value.

An automated colorimetric tube cleaning and drying device relates to the field of chemical testing auxiliary equipment technology. The device includes a horizontally positioned frustum. The upper surface of the frustum is divided into a water receiving area, a testing area, a water emptying area, a cleaning area, and a drying area by a partition groove. The lower surface is equipped with a warm air pipe, a cleaning pipe, and a water collection tank. An L-shaped rod is inserted through the center of the frustum, with a clamping device connected to its end. A flipping mechanism consisting of a conical toothed plate and a bevel gear is provided between the L-shaped rod and the frustum. A servo motor inside a support cylinder drives the L-shaped rod to rotate. The clamping device securely holds the colorimetric tube using an arc-shaped clamping plate and a compression spring, and works in conjunction with the various functional areas to complete the water receiving, testing, water emptying, cleaning, and drying operations. This device automates the processing of colorimetric tubes, shortens drying time, and improves testing efficiency, making it suitable for color and turbidity testing of chemical liquids.

This invention provides a transmission-type experimental device with temperature control function, including a chamber, a rotating module, a water bath temperature control module, an optical fiber connection module, a display and interaction module, a control and processing module, and a power input module; it can simultaneously place multiple samples and control the temperature of multiple samples at the same time. Compared with other cuvette experimental devices, this device is more efficient and can also ensure that all samples are heated and cooled in the same environment.

The utility model discloses an online detection device of dexamethasone sodium phosphate injection intermediate belongs to pharmacy detection field, including support, install ultraviolet spectrophotometer equipment on the support to setting liquid dilution bucket on the support, the liquid dilution bucket discharge opening is connected with the hose, and the bottom end of hose is connected with the pipe head, and the support is provided with the drive mechanism that drives the pipe head to move up and down, is provided with the cuvette on ultraviolet spectrophotometer equipment, and the support is provided with two clamps symmetrically, and two clamps all are pasted in the outer wall of cuvette, through the cooperation of above each device, through the gear drive first rack and second rack lift, to drive the pipe head realizes accurate lifting, and the cooperation clamp holds the cuvette, distinguishes from manual dosing, and the cuvette is fixed in the exactly same position every time, makes liquid to be able to follow the pipe head accurate and enter the inside of cuvette, greatly improves the detection efficiency.

A cuvette is presented, where samples are placed between a first plate and a second plate, and the first plate and the second plate are held and squeezed together by an outer enclosure. This allows the sample to be compressed to a high degree of accuracy. The plates also have openings, which are connected to inlet and outlet tubes to allow samples or other fluids to be introduced between the plates. By manipulating hydraulic pressure across the openings, the sample can be manipulated within the cuvette without the need to disassemble the cuvette. The plates can be curved, allowing the plates to be a lens within the detection system.

This invention provides a cuvette holder, comprising a base, a first optical fiber assembly, a second optical fiber assembly, a slider, and an elastic guide assembly. The base has an opening at the top, and the first and second optical fiber assemblies are positioned opposite each other on either side of the mounting cavity and are both fixed to the base. Detection light can be transmitted between the first and second optical fiber assemblies. The slider is positioned within the mounting cavity via the elastic guide assembly and can slide within it. The slider has a light-transmitting hole through which the detection light between the first and second optical fiber assemblies can pass. A first clamping part is provided on one side of the slider, and a second clamping part is provided on the side wall of the mounting cavity opposite to the first clamping part, forming a clamping space for the cuvette. This holder is easy to assemble and replace, highly corrosion-resistant, and compatible with various sizes of cuvettes or test tubes.

The utility model provides a colorimetric tube storage box device, including box body structure, bayonet mechanism and return spring, the upper portion of box body structure is provided with the placing groove for placing a plurality of colorimetric tubes in turn, the left end of box body structure lower part is provided with the track sliding slot of communication with the placing groove, is used for the colorimetric tube under the action of gravity and slides out, the bayonet mechanism is set up in the connecting place of track sliding slot front end and the tail end of placing groove through return spring activity, is used for opening the bayonet release colorimetric tube when being pressed by external force, and under the automatic reset of return spring and the blocking of next colorimetric tube. The utility model discloses the linkage design of bayonet mechanism and return spring realizes single -tube controllable release, utilizes gravity slide rail to realize automatic sequencing, can effectively improve experimental efficiency, reduces the breakage rate of colorimetric tube, and keeps the storage order of colorimetric tube, ensures the smooth progress of chemical analysis and testing.

The utility model discloses a kind of carbon black toluene extractive light transmittance determination's pretreatment device, belong to material detection technical field.The device includes control system, magnetic stirrer, container bottle, toluene bottle, toluene injection pump, mixed solution injection pump, toluene filter, mixed solution filter, cuvette and corresponding pipeline.Control system is electrically connected with magnetic stirrer, toluene injection pump, mixed solution injection pump respectively, can automatically control toluene addition amount, stirring time and mixed solution delivery volume.Toluene is filtered after toluene filter, and by toluene injection pump is injected into container bottle, and is mixed with carbon black sample and is stirred by magnetic stirrer;Mixed solution is filtered after mixed solution filter, by mixed solution injection pump is delivered to cuvette, and preparation of determination liquid is completed.The device realizes the automation of carbon black toluene extractive pretreatment, reduces artificial error, reduces the contact risk of operator and toluene, improves detection efficiency and repeatability, applicable to industrialization batch detection.

This invention discloses a pesticide residue detection device, relating to the field of pesticide residue detection technology. It includes a pesticide residue detector body with a cover rotatably connected to its surface. A detection groove is formed inside the pesticide residue detector body, and an oscillation mechanism is provided on one side of the body. This pesticide residue detection device, through the combined use of a vibration unit and an defoaming unit, can improve detection accuracy. When mixing vegetables and reagents, it can eliminate air bubbles generated during mixing, effectively preventing bubble formation. Simultaneously, when pouring the mixed detection solution into a cuvette, it can also effectively prevent bubble formation, ensuring that the detection reagent poured into the cuvette is bubble-free. During detection, it can effectively prevent the detection light path from being reflected, ensuring the accuracy of the received signal and improving detection precision.

The presently claimed technology provides improved calibration and validation procedures for sample containers (e.g., cuvettes) in automated chemical analyzers. The presently claimed technology further provides a method of operating an automated analyzer that can automate the calibration and integrity tracking of individual sample containers (e.g., cuvettes) in parallel with the measurement of component samples. The method eliminates the need to alternate between diagnostic and measurement modes when performing system maintenance such as verifying cuvette integrity, calibrating absorbance baselines, and replacing cuvettes. Thus, the presently claimed technology can reduce downtime and significantly increase the productivity of clinical laboratories by allowing such system maintenance to be performed in parallel with sample analysis.

The utility model discloses a kind of range switching cuvette measuring devices, belong to the technical field of water quality monitoring equipment, including pedestal, optical module and colorimetric module are equipped on pedestal, optical module includes light source piece and light detector, light source piece and light detector are respectively placed in the two sides of colorimetric module, colorimetric module includes cuvette body, the inside of cuvette body is provided with measuring area, measuring area has at least two different measurement ranges, switching module is equipped on pedestal, switching module is connected with cuvette body.The utility model can realize the internal automatic switching range of cuvette measuring device, without dismounting replacement, simplify the procedure of switching range, simultaneously avoid the situation that reagent and to-be-measured liquid remain in the inner wall of cuvette occurs, reduce measurement error, and then improve the effect of the accuracy of measurement.

The embodiment of the present application discloses a sample analysis device, a measuring mechanism is used for performing optical measurement on a cuvette container loaded with a to-be-measured sample to obtain first detection data for characterizing a HIL detection result, and performing optical measurement on a reaction solution made of the to-be-measured sample and a preset detection reagent in a reaction container to obtain second detection data for characterizing the HIL detection result and third detection data for characterizing a detection item corresponding to the preset detection reagent; a control device is configured to output a prompt of whether the to-be-measured sample contains other interferents except for the HIL according to the first detection data and the second detection data; and output a detection result of the detection item corresponding to the preset detection reagent of the to-be-measured sample according to the third detection data. The embodiment of the present application can effectively determine whether other interferents except for the HIL exist in the sample, which not only significantly improves the accuracy of the sample analysis device, but also enhances the reliability of clinical diagnosis.

The application provides a portable ammonia nitrogen detection device and ammonia nitrogen detection method, the device comprises: a shell, a cuvette slot, a light source module, a fluorescence detection module, a signal processing module, a control module; the shell comprises a shell cover and a shell body which are detachably connected; the cuvette slot, the light source module and the control module are fixed to the shell body, and the fluorescence detection module is connected with the control module through the signal processing module; the cuvette slot is arranged in the vertical direction, the light source module and the fluorescence detection module are both arranged in the horizontal direction, and the light emitting direction of the light source module and the detection direction of the fluorescence detection module are perpendicular to each other. The device has simple structure, is light and easy to carry, and is suitable for rapid detection of the ammonia nitrogen concentration of groundwater in the field environment.

This invention discloses an oil testing device, comprising: a storage tank; a first inlet pipe with one end connected to the storage tank and the other end connected to a cuvette, and a first drive pump connected in series with the first inlet pipe; an extraction device comprising: an extraction flask, wherein the oil is suitable for oil-water separation; a second inlet pipe with one end connected to the first drive pump and the other end connected to the extraction flask; a third inlet pipe connected between the extraction flask and the cuvette, and a second drive pump connected in series with the third inlet pipe; a first control valve assembly for controlling the cuvette to be switchably connected to the extraction flask or to the storage tank; and a detector comprising a light source generating assembly and a light source receiving assembly, with the cuvette arranged between the light source generating assembly and the light source receiving assembly, the light source generating assembly comprising a first optical path and a second optical path that are independent of each other. According to the oil testing device of this invention, the determination of water-soluble acidity and color of oil can be completed simultaneously using a single instrument, significantly improving the detection efficiency.

This disclosure discloses a vitamin D3 content detection device, relating to the field of food quality testing technology, comprising: a support assembly, a clamping assembly, and a filtering assembly. The support assembly includes a chassis and a base. A detection assembly, including a UV meter and a filter, is installed inside the chassis. A partition assembly, including a detection chamber and a top cover, is also installed inside the chassis. A photosensitive assembly, including a cuvette and a photosensitive sensor, is installed inside the detection chamber. An exhaust assembly is installed on one side of the chassis. This vitamin D3 content detection device and method can, when local overheating occurs, push the piston of the sliding sleeve downwards. The piston drives the guide rod downwards to the belt, and the guide rod presses down to close the button, shutting off motor three. Fan two continues to cool and reduce the temperature, improving the local heat dissipation efficiency and protecting the UV meter and filter. It is suitable for detecting vitamin D3 content.

The application provides a fluorescence quantitative detection device and a fluorescence quantitative detection system. The fluorescence quantitative detection device comprises a laser, an excitation optical fiber, an excitation microlens array, a fluorescence collection optical fiber, a signal collection microlens array and an imaging system. The excitation optical fiber comprises a plurality of excitation light output ends, which are used to receive excitation light emitted by the laser and output the excitation light from the excitation light output ends to the excitation microlens array. The excitation microlens array comprises a plurality of excitation microlens units, which are used to converge excitation light to solutions in sample cuvettes respectively loaded with to-be-detected solutions. The fluorescence collection optical fiber comprises a plurality of fluorescence input ends and a plurality of fluorescence output ends, which are used to collect fluorescence signals of to-be-detected samples and output the fluorescence signals from the fluorescence output ends to the collection microlens array. The signal collection microlens array is used to image different regions of the imaging system respectively. The fluorescence quantitative detection device and the fluorescence quantitative detection system provided by the application effectively improve the quantitative detection precision and efficiency.

This invention relates to an analytical sample cuvette timer holder (10), comprising: a plurality of identical vertical sample cuvette containers (541-544) for vertically storing analytical sample cuvettes (20'), each analytical sample cuvette (20') being provided with a readable analysis type indicator (26) indicating the analysis type (ty), wherein each sample cuvette container (541-544) is provided with a signal device (551-554); a single independent sample cuvette reader station (52), the sample cuvette reader station (52) having an indicator reader (32) for reading the analysis type indicator (26) of the analytical sample cuvette (20), and a dispensing device for dispensing the analytical sample cuvettes (20) to the sample cuvette containers (541-544). (46), and an electronic time management device (40), the electronic time management device (40) being connected to the indicator reader (32), the signal device (551-554) and the allocation device (46), wherein the electronic time management device (40) is provided with an analysis type timing library (49), the analysis type timing library (49) having stored reaction times (Tr) for at least two different analysis types (ty), and wherein the electronic time management device (40) is provided with a timer coordination unit (48), the timer coordination unit (48) activating the signal device (551-554) of the allocated sample cuvette storage container (541-544) when the reaction time (Tr) for the analysis type (ty) identified by the sample cuvette reader station (52) has expired.

This invention relates to the field of medical biochemical analysis technology, and discloses an optical detection device for a medical biochemical analyzer, including a base and a top plate. A support column is rotatably connected to the upper surface of the base, and a rotating worktable is fixedly connected to the upper surface of the support column. A stirring mechanism is disposed on the lower surface of the top plate. A clamp is rotatably connected inside the rotating worktable, and a cuvette is clamped and fixed inside the clamp. A sleeve is fixedly connected to the upper surface of the base, and a gear one is fixedly connected to the upper surface of the sleeve. A gear two is fixedly connected to the lower surface of the clamp, with the tooth ends of gear one meshing with the tooth ends of gear two. The optical detection mechanism is disposed on the upper surface of the base. By fixing gear one and engaging gear two, which revolves with the clamp, the cuvette rotates on its own axis while revolving with the worktable. Using purely mechanical transmission to achieve the rotation of the cuvette not only enhances the mixing effect but also avoids uneven local concentrations of reagents.

The application belongs to the field of rapid detection of the content of polar components in edible oil, and discloses application of a probe in detection of the content of polar components in edible oil, and the structural formula of the probe is: as the polarity of the solution increases, the maximum absorption position of the system is red shifted from 388 nm to 778 nm, and the absorption of the wavelength effectively avoids the interference of the self-absorption of the edible oil in the short wavelength region. By utilizing the relationship between the absorption intensity of the probe at 778 nm and the content of TPM in the edible oil, quantitative detection of TPM (13.9%-29.3%) in the edible oil can be realized. In addition, a portable edible oil safety detection device is developed, when in use, only the sample cuvette needs to be placed into the detection cabin, and then the instrument can automatically complete color recognition and judgment, and the result can be directly displayed on the screen. The integrated system is simple to operate, the result is intuitive, and a reliable scheme is provided for on-site rapid screening of the edible oil.

A laboratory analyser unit (10) for determining an analyte of a liquid sample (48) mixed with a reagent and contained in a sample cuvette (40) which comprises a thermal radiation measuring field (46) on the outside, comprising an analyser (12) for determining an analyte concentration of the liquid sample (48) in the sample cuvette (40), a pyrometer (50) for determining the surface temperature of the measuring field (46) wherein the pyrometer (50) is arranged in such a way that a detection cone (52) of the pyrometer (50) is aligned with the measurement field (46) of the sample cuvette (40) inserted into the analyser unit (10), and an analyser control unit (20), which is signal-connected to the analyser (12) and which comprises a temperature evaluation module (22) which is signal-connected to the pyrometer (50) and which evaluates the sample cuvette temperature (T) determined by the pyrometer (50). The invention allows a simple temperature detection of the sample temperature.

The invention refers to a photometric laboratory analyzer (200) for photometrically determining an analyte of a liquid sample (36) provided in a sample cuvette (301-305), the photometric laboratory analyzer (200) comprising a stationary main device (100) with a photometer comprising a photometer light source (104) and a photometer light receiver (106), with an electronic photometer control (102) and with a cuvette tray reception (130) for accommodating a removable cuvette tray (10), the removable cuvette tray (10) having at least two cuvette reception slots (21-25), wherein every cuvette reception slot (21-25) of the cuvette tray (10) is provided with a rotatable and mechanically drivable cuvette rotation means (42) which cuvette rotation means (42) is in physical contact with a sample cuvette (301-305) being inserted into the corresponding cuvette reception slot (21-25), a tray driving arrangement comprising a tray driving motor (110) at the stationary main device (100) and a mechanical coupling (C) for mechanically driving the cuvette tray (10) to optically align one of the reception slots (21-25) with the photometer, and a cuvette rotation arrangement comprising an electromagnetic energy transfer means (T) for a contactless transfer of electric energy from the stationary main device (100) to the cuvette tray (10), wherein the cuvette tray (10) is provided with an electric cuvette rotation motor (50) mechanically driving the cuvette rotation means (42).

Disclosed is a sample analyzer comprising: a measurement unit configured to measure an analyte related to a dementia biomarker contained in a sample collected from a subject, the measurement unit comprising: a sample dispenser configured to aspirate the sample from a sample container and discharge the aspirated sample into a cuvette, a first reagent dispenser configured to aspirate a first reagent from a first reagent container and discharge the aspirated first reagent into the cuvette, wherein the first reagent immunologically reacts with the analyte, a second reagent dispenser configured to aspirate a second reagent from a second reagent container and discharge the aspirated second reagent into the cuvette, wherein the second reagent generates light corresponding to an amount of the reacted analyte, a detector configured to detect the generated light from a mixture of the sample, the first reagent, and the second reagent in the cuvette; a controller comprising a processor and programmed to obtain a measurement value of the analyte based on the light detected by the detector; a storage configured to store a reference value that specifies an outlier that may be caused by a factor other than dementia; and an output unit, wherein the controller is programmed to execute a determination on whether the measurement value is specified as the outlier based on the measurement value and the reference value, generate an analysis result of the dementia biomarker based on the measurement value and a result of the determination, and output the analysis result of the dementia biomarker via the output unit.

Devices and methods for optically measuring fluid flow are disclosed. The devices and methods include a multi-component, multichannel cuvette associated with a fluid circuit. The multi-component, multichannel cuvette includes a molded body and first and second transparent walls.

The application relates to a colorimetric detection device for automatic mixing of reagents, which comprises a cuvette shield, a cuvette, a receiving module, a transmitting module, a plano-convex lens, a light source, a magnetic stirrer and a stirring mechanism. The cuvette shield is a hollow structure with an open top, the cuvette is arranged in the cuvette shield, the receiving module and the transmitting module are arranged on the two sides of the cuvette shield and correspond to each other, the receiving module and the transmitting module receive and send detection results, the plano-convex lens and the light source are arranged on the two sides of the cuvette and correspond to each other, the magnetic stirrer is arranged in the cuvette, the stirring mechanism is arranged on the cuvette shield and located on the side opposite to the open end of the cuvette shield, the stirring mechanism is magnetically connected with the magnetic stirrer and drives the magnetic stirrer to stir in the cuvette. The device integrates reagent mixing and colorimetric detection, realizes automatic and uniform mixing of the reagents through cooperation of the stirring mechanism and the magnetic stirrer, and avoids errors and inconvenience of manual stirring.

A measurement cuvette and a method for determining a concentration of a particulate suspension are disclosed. The measurement cuvette is formed of a fully transparent material and has an L-shaped cross section defined by removal of a rectangular notch from a square body. The method comprises introducing a particulate suspension into the cuvette and measuring absorbance at a plurality of optical path lengths including a maximum optical path length, an intermediate optical path length, and a minimum optical path length to obtain corresponding optical density (OD) values. Weighting factors are dynamically calculated based on a functional relationship among the OD values, and the OD values are combined using the calculated weighting factors to generate a final OD value representative of the concentration of the particulate suspension.