224 results about "Cuvette" patented technology

The invention relates to the technical field of material detection, and discloses an SPC floor production formaldehyde release colorimetric detection device which comprises a release chamber, an absorption chamber arranged on one side of the release chamber and a detection chamber arranged on one side of the absorption chamber, and a cuvette and an optical detection device located above the cuvette are arranged in the detection chamber. A liquid outlet corresponding to the cuvette is formed in one end of the absorption chamber, an electromagnetic valve is mounted on the liquid outlet, and a pressure cavity is formed above the release chamber; the device further comprises a residue removing mechanism. Through the lifting of the piston plate and the integrated mechanical linkage design of the release chamber, the absorption chamber, the detection chamber, the pressure cavity and the residue removal mechanism, the technical problems that in an existing colorimetric detection device, links such as gas conveying, absorption and residue removal are dispersed and independent and depend on multiple power sources are solved, cooperative and efficient operation of the whole formaldehyde detection process is achieved, and the detection efficiency is improved. The whole structure of the device is simplified, energy consumption is reduced, and precise synchronization of actions of all links is guaranteed.

The invention discloses an activated sludge fluorescence online detection device based on a flow cell, and relates to the field of activated sludge biomass detection.The activated sludge fluorescence online detection device comprises a fluorescence spectrophotometer and a fluorescence spectrophotometer sample table arranged on the fluorescence spectrophotometer, and the fluorescence spectrophotometer is connected with a processor through a cable; the fluorescence spectrophotometer sample table is connected with a sample cup through a guide pipe, activated sludge is arranged in the sample cup, and a peristaltic pump is arranged on the guide pipe; the activated sludge continuously flows through the fluorescence spectrophotometer sample table through the guide pipe for three-dimensional fluorescence detection through the peristaltic pump, sludge sedimentation in a traditional cuvette is avoided, measurement is simple and convenient, and on-line real-time monitoring of the activated sludge biomass can be achieved.

The invention discloses an anti-toppling water environment monitoring device, and relates to the technical field of chemical or physical analysis, the anti-toppling water environment monitoring device comprises a monitoring box, a leveling mechanism and an anti-toppling mechanism are sequentially clamped at the bottom of the monitoring box from top to bottom, and the leveling mechanism is used for detecting the horizontal degree of the monitoring box and stably placing the monitoring box; a fixing mechanism for adjusting the angle until the monitoring box is in a horizontal state is arranged below the anti-toppling mechanism; the horizontal state of the monitoring box can be guaranteed by placing the monitoring box on the placing disc after two times of supporting, horizontal stable supporting of the monitoring box is achieved, the situation that the liquid level of liquid in the cuvette is uneven and a light path deviates due to inclination is avoided, the accuracy of detection data such as absorbance is improved, and the detection accuracy is improved. And the arrangement of the structure is superior to that the monitoring box is horizontally adjusted after supporting, so that the problem that the existing monitoring box is difficult to adapt to different gradients and keep horizontal at the same time is solved, and meanwhile, the problem that the monitoring box falls due to unstable supporting in the adjusting process caused by the fact that the existing monitoring box is adjusted after supporting is solved.

A cuvette support groove is a cuboid-shaped cavity with an opening in the upper portion, light-transmitting openings are formed in the light-facing face and the backlight face of the support groove and used for allowing incident light to pass through, small square prisms are arranged at the four inner corners of the support groove, the four small prisms are consistent in size, one right angle of each small prism coincides with the right angle of the support groove, and the other right angle of each small prism coincides with the right angle of the support groove. The height of the small prism is equal to that of the support groove. And the distance between the two small prisms between the bracket groove light-facing surface and the bracket groove backlight surface is matched with the outer diameter between the two colorimetric light surfaces. And the inner diameter between the side surfaces of the two bracket grooves is matched with the outer diameter between the rough surfaces of the two cuvettes. According to the cuvette bracket groove provided by the utility model, the light surface of the cuvette is clamped by the four small prisms, and the rough surface of the cuvette is clamped by the two side surfaces, so that the cuvette is stably and vertically fixed on the bracket groove. Except the part contacted with the small prism, the smooth surface of the cuvette is not contacted and rubbed with the bracket groove in the plugging process, and the smooth surface is not abraded.

1. The name of the design product: colorimetric cup. 2. The use of the design product: for biochemical detection instrument. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

Dissolving activity analyzer including an integrating cavity comprising a reflective inner wall or walls, and configured to receive a cuvette containing liquid sample. The integrating cavity comprises a light inlet port and a light outlet port, the light inlet port being configured to receive light from a light source and the light outlet port being configured to deliver light to a spectrometer. The dissolving activity analyzer is configured to operate in a diffusely reflecting mode in which light from the light source follows a light path from the inlet port into the integrating cavity, is incident onto the reflective inner wall or walls and is diffusely reflected, such that the light from the light source irradiates the liquid sample before being transmitted through the light outlet port and received by the spectrometer to provide an absorbance spectrum of the liquid or liquid matrix contained in the liquid sample.

Aspects are provided for a UV-Vis calibration solution, composed of a lanthanide and an ionic liquid. In particular, the UV-Vis calibration solution may contain 4 to 12% by weight of Holmium (III), dissolved in an aqueous chloride solution. The disclosure also includes a calibration standard created from this calibrated solution, by placing the solution in a cuvette and capping it. The disclosure additionally includes a method of using the calibration standard to obtain a UV-Vis spectrum in the wavelength range of about 250 nm to 700 nm.

1. The name of the design product: dry bath heater block. 2. The use of the design product: used for heating samples in test tubes and cuvettes, and also for drying empty test tubes and cuvettes. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The present invention relates to an optical modulation system based on the interaction of two collinear light beams having different wavelengths passing through a cuvette containing a solution of Cs2SnI6, comprising a pumping laser emitter emitting a modulated pumping beam with a wavelength between 355 nm and 1550 nm and with a variable frequency; a test laser emitter emitting a continuous wave test beam at 633 nm and with a power limited to 10 mW; a beam splitter where the pumping and test beams are combined to strike on the cuvette; a pass filter that removes the signal from the pumping beam; a spatial analysis camera; a time / frequency analysis equipment with a photodetector, a commercial lock-in amplifier and an oscilloscope; and a signal generator.

The utility model discloses a transmission / reflection spectrum detection light path structure, which relates to the field of spectrum detection, and comprises an integrating sphere fixedly arranged on the left upper side in a shell; the object carrying cover is arranged on the top surface of the shell, and the object carrying cover is arranged right above the integrating sphere in a covering manner; the left side of the cuvette bracket is fixed at an outlet in the right side of the integrating sphere; the buckling cover is mounted on the top surface of the shell, and the buckling cover is positioned right above the cuvette bracket; the first heat dissipation cover is mounted on the right side of the cuvette bracket; the second heat dissipation cover is mounted at a left interface of the lower end of the integrating sphere; the spectrograph is fixedly mounted in the shell, and the spectrograph is connected with a right interface at the lower end of the integrating sphere through an optical fiber. According to the utility model, transmission and reflection spectrum detection can be simultaneously carried out, the reliability and stability of object detection can be effectively ensured, and the accuracy of a detection result is ensured.

The application discloses a method for detecting the concentration of dissolved CO in fermentation liquor. The method comprises the following steps: (1) preparing CO saturated aqueous solution, oxygen-free aqueous solution, sodium hydrosulfite solution as a reference solution and deoxygenated myoglobin solution; (2) preparing an absorbance-CO saturation standard curve; (3) sampling and detection: taking a sample from the fermentation liquor as a sample to be detected by a sampling device, injecting the sample to be detected into a cuvette, adding 2.5 mL of deoxygenated myoglobin solution in the cuvette in advance and sealing the cuvette, adjusting zero with the reference solution, detecting the absorbance of the cuvette containing the sample to be detected at a wavelength of 415-425 nm by a spectrophotometer, substituting the obtained absorbance into the absorbance-CO saturation standard curve obtained in step (2) to obtain the corresponding CO saturation, and then converting the CO saturation into the concentration of dissolved CO according to the known CO solubility. The detection method has the characteristics of taking and measuring immediately, rapidness and simplicity.

The invention belongs to the field of water pollution monitoring, and particularly relates to an online measurement method for petroleum in water, which comprises the following steps: step 1, water sampling: a trigger unit transmits the detected fluorescence intensity of the water surface to a control unit, and the control unit controls the water sampling frequency of a sampling pump in the water sampling unit according to the fluorescence intensity detected by the trigger unit; step 2, extraction: sending the water sample extracted by the sampling pump into a sample storage container, and extracting oil substances into an extraction reagent; step 3, separation: conveying into a separation container through a conveying pump; and 4, measuring, namely feeding the extraction reagent into a cuvette of a measuring unit for measuring the content of the oil substances. According to the design, a method of combining water surface early warning measurement and underwater quantitative measurement is adopted, pollution occurrence can be judged in time, and the content of underwater oil substances can be measured online, so that pollution sources can be conveniently fed back and controlled in time, and the timeliness of online water environment monitoring is guaranteed.

The application provides a recycled water irrigation system based on ultraviolet peroxo organic acid combination and a water treatment method. The system comprises a shell, a POA dosing tank and a control unit. The lower part of the shell is provided with a water inlet, and the upper part is provided with a water outlet. The water inlet is provided with a lifting pump. A glass liner is arranged in the shell. The interior of the glass liner is divided into a first chamber, a second chamber and a third chamber which are sequentially communicated by a baffle. A grid is arranged in the first chamber. The inner wall of the first chamber is provided with spiral flow guide lines. An ultraviolet light intensity sensor is arranged in the second chamber. The top of the third chamber is provided with a UV-Vis spectrometer with a built-in quartz cuvette. A nozzle, a stirring mechanism, a spiral mixer and a glass electrode pH sensor are arranged in the third chamber. The bottom of the third chamber is provided with an ultraviolet lamp. The system solves the safety and applicability problems of direct irrigation of recycled water through the synergistic effect of ultraviolet irradiation and oxidation.

The present application provides an oil analyzer, comprising a shell, a sample storage module, a detection chamber, a near-infrared spectrum analysis module, a sampling module and a temperature adjusting module. The shell has a first cavity, when multiple oil samples need to be detected, the multiple samples can be simultaneously accommodated in the first cavity through a sample support and a sample tube, and the first cavity is refrigerated or heated through the temperature adjusting module, so that the first cavity is at the same temperature as the detection chamber. The oil analyzer provided by the present application can perform constant temperature treatment on the samples in advance, so that the temperature of the samples reaches a stable state when the samples are temporarily stored in the first cavity. In this way, when detection is performed, the samples first enter a cuvette through the sampling module, and then the cuvette is moved to the detection chamber through the first telescopic rod. After the samples enter the detection chamber, they no longer need to wait, and the near-infrared spectrum analysis module can directly perform spectrum analysis on the samples, eliminating the waiting time and improving the detection efficiency.

A method of using an automatic chemical analyzer includes detecting in real-time abnormalities in a cuvette used with the analyzer and further detecting abnormal reaction conditions present in the cuvette used with the analyzer. Baseline signals are continuously updated and compared with subsequent signal recordings, as well as evaluating data within a given subsequent signal recording itself. Signal criteria are used when evaluating and comparing signal recording data and the analyzer will indicate or provide an alert where a detected abnormality in the cuvette or reaction condition is identified.

The utility model relates to an ultraviolet and visible spectrophotometer, which aims at solving the technical problems that the current cuvette is relatively tight in insertion, relatively large in friction force and not smooth in insertion, and comprises a spectrophotometer shell, a sample chamber, a turning cover, a cuvette groove and a cuvette, the sample chamber is arranged in the spectrophotometer shell; the flip cover is rotationally arranged on the spectrophotometer shell corresponding to the opening of the sample chamber; the cuvette groove is arranged at the bottom in the sample chamber; the plurality of cuvettes are respectively connected with the cuvette groove through a plurality of connecting structures; the connecting structure comprises a U-shaped plate and an abutting elastic piece. The U-shaped plate is arranged in the cuvette groove; the two abutting elastic pieces are arranged on the two sides of the bottom of an inner cavity of the U-shaped plate correspondingly. The cuvette is inserted into the inner cavity of the U-shaped plate, and the two sides of the bottom of the cuvette are matched with the two abutting elastic pieces in an abutting mode respectively. The cuvette has the advantages that the cuvette is inserted into the U-shaped plate, the inner cavity of the U-shaped plate has enough space, the abutting elastic pieces abut against and position the cuvette, and the cuvette is convenient to insert and position.

1. The name of the design product: blood coagulation cup. 2. The use of the design product: for placing analysis reagent and analyzed sample on coagulation analysis instrument. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The application belongs to the technical field of neutron scattering, and discloses a sample rotating device. The sample rotating device is used for rotating a cuvette containing a liquid to be detected during a neutron experiment on the liquid. The sample rotating device comprises a supporting seat, a sample fixing assembly and a driving assembly. The sample fixing assembly comprises a rotating cylinder, and a worm wheel is arranged on the outer side of the rotating cylinder. The driving assembly comprises a driving motor and a worm. The driving motor is in transmission connection with the worm wheel through the worm. The worm is rotatably arranged on the supporting seat. The driving motor drives the worm to rotate. The worm drives the worm wheel to rotate and further drives the rotating cylinder to rotate. The rotating cylinder is fixedly installed with the cuvette. When the rotating cylinder rotates, the cuvette can rotate with the center of the disc surface of the cuvette as the axis. The liquid sample in the cuvette can be prevented from precipitating or being non-uniform in density during long-time measurement, so that the solute in the liquid sample can be kept in a uniformly dispersed state, and the effectiveness of small-angle neutron scattering experimental data can be ensured.

The invention discloses a low-energy-consumption wavelength and intensity composite standard lamp which structurally comprises a deep ultraviolet module, a visible-infrared module, a micro-channel heat dissipation structure and a rare earth sharp line calibration unit. The core innovation is that a rare earth sharp line calibration unit is integrated on the basis of a standard intensity lamp, that is, a cuvette filled with a Re (Er-Ho-Dy) (NO3) 3 or Re (Er-Ho-Dy) (ClO4) 3 ternary mixed solution is additionally arranged at a light source outlet. The device has the beneficial effects that the device can be switched to a sharp line mode on the basis of an intensity calibration function to realize high-precision wavelength calibration, is compact in integration, and adapts to a portable detection scene.

The invention relates to a NMR spectrometer (10) comprising a permanent magnet arrangement (11) which comprises a measurement volume (12) and a bore (13) for introducing a NMR measurement sample in a sample cuvette (14) and a HF coil (15) outside a cylindrical temperature regulation tube (16) which comprises a continuous annular gap (17) through which a temperature regulation gas can be conducted through a gas inlet (18), characterized in that on the end opposite to the gas inlet a movable holding device (19) is mounted which in a first operating position does not touch the sample cuvette, in a second operating position holds the sample cuvette force-locked and / or form-locked on the outer circumference of the sample cuvette with an axially acting force or static friction F f in its measurement position and in a third operating position releases the sample cuvette for removal and in the second operating position applies F f >F Stau -F Gewicht , wherein F Stau denotes the buoyancy force generated by the dynamic pressure of the temperature regulation gas flowing onto the sample cuvette and F Gewicht denotes the gravitational force of the sample cuvette. By this it is possible to avoid the problems of the known generic arrangement by the dynamic pressure of the temperature regulation gas.

The application discloses a kind of anti-toppling water environment monitoring devices, it is related to chemical or physical analysis technical field, including monitoring box, monitoring box bottom is sequentially clamped with leveling mechanism and anti-toppling mechanism for monitoring box detection its level and stable placement from top to bottom, anti-toppling mechanism is equipped with the fixed mechanism for adjusting angle until monitoring box is horizontal state;The horizontal state of monitoring box can be guaranteed by placing monitoring box on the placing disc after being supported twice, the horizontal stable support of monitoring box is realized, the inaccuracy of absorbance detection data is improved, the liquid surface in cuvette is not flat, the light path is deviated due to inclination is avoided, and the setting of the structure is superior to supporting and then adjusting the level of monitoring box, the problem that existing monitoring box is difficult to simultaneously guarantee to adapt to different slopes and keep horizontal is solved, the problem that existing support and then adjustment leads to unstable support during adjustment process and causes monitoring box to fall is solved.

The present invention is a cuvette assembly for use in optically measuring at least one characteristic of particles within a plurality of liquid samples. The cuvette assembly comprises a main body having internal walls and external walls, and a plurality of cuvettes within the main body at least partially being defined by the internal walls. Each of the plurality of cuvettes has a liquid-input chamber for receiving a respective one of the plurality of liquid samples, a filter, and an optical chamber for receiving a respective filtered liquid sample caused by passing the respective one of the plurality of liquid samples through the filter. Each of the optical chambers includes an entry window for allowing transmission of an input light beam through the filtered liquid sample and an exit window for transmitting a forward scatter signal caused by the particles within the filtered liquid sample.

A cuvette for analyzing a fluid includes an interior space for receiving the fluid. The interior space includes an analysis section for analyzing the fluid. The analysis section extends over two opposite sides of the cuvette. The cuvette also includes a first opening for filling the cuvette, the fluid can be introduced into the interior space via the first opening, and the analysis section has a first analysis path for analyzing the fluid and a second analysis path for analyzing the fluid. The first analysis path is shorter than the second analysis path such that differently concentrated fluids can be analyzed by the first analysis path and the second analysis path. The first analysis path and the second analysis path extend from a first side of the opposite sides of the cuvette to a second side of the opposite sides of the cuvette.

The utility model relates to the technical field of pesticide residue detection, in particular to a to-be-detected liquid sample manufacturing mechanism applied to pesticide residue detection. The liquid sample access device comprises a first storage module, a second storage module and a liquid sample transfer module, a sample disc of the first storage module is used for placing a sample bottle, a reaction disc is used for placing a cuvette, a first driving assembly drives the sample disc to rotate, and the sample disc rotates to drive the reaction disc and the cuvette to rotate; the second storage module comprises a reagent disc; the liquid sample transfer module comprises a mechanical arm, a liquid adding needle and a second driving assembly; and the mechanical arm is timely driven to drive the liquid adding needle to rotate, so that the liquid adding needle reaches each sample position, each cuvette position and each reagent position, liquid samples are extracted or released, and the preparation of the to-be-detected liquid samples is realized. According to the to-be-detected liquid sample manufacturing mechanism applied to pesticide residue detection, manufacturing of a to-be-detected liquid sample can be achieved, the pesticide residue detection efficiency can be improved, the labor cost is reduced, and the pesticide residue detection cost is reduced.

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 application discloses an optical detection device and a protein detection device using the same. The optical detection device comprises a light source and a cuvette. The light source is used for emitting a convergent light beam. The cuvette is arranged on the light path of the convergent light beam and is arranged in an inclined manner with respect to the optical axis of the convergent light beam. In this way, the application can reduce the re-reflection of the light beam back to the light source, reduce the loss of the light source and prolong the service life of the light source.

The utility model discloses an in-situ test device for ultraviolet visible light wave band, including bottom plate, shell, upper cover, kettle body, heating rod, cuvette, temperature measuring element, thermal baffle and support pillar, the inside hollow shell is provided on the bottom plate, the upper cover is provided on the top of shell, the thermal baffle is provided on the bottom plate, the kettle body is provided on the kettle body. The kettle body is arranged inside the shell through a plurality of supporting columns penetrating through the heat insulation plate, a plurality of heating rods are inserted into the kettle body, the cuvette is arranged in an inner cavity of the kettle body in a sealed mode, and the temperature measuring element is arranged on the shell and extends into the kettle body to face the cuvette. The in-situ testing device has the advantages that the in-situ testing device can keep good optical transmission performance and mechanical stability in a high-temperature environment, the influence of thermal radiation on a light path is reduced, and efficient and accurate ultraviolet-visible light absorption in-situ testing under the high-temperature condition can be realized.

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.

A reaction cuvette according to an embodiment is used for measurement performed by an automatic analyzing device, and is a reaction cuvette that houses a mixed liquid of a reagent and a sample to be measured. The reaction cuvette includes a cuvette main body and an aspiration port. The aspiration port is disposed on the cuvette main body, and allows a fluid to flow into an inner part of the cuvette main body from a bottom surface side of the cuvette main body.

The invention relates to a system and method for characterizing a sample in a cartridge using XPS in a plurality of measurement situations. A system for characterizing a film layer within a measurement cartridge is disclosed. The system obtains a first mix fraction corresponding to the first X-ray beam, the mix fraction representing a fraction of the first X-ray beam within a measurement cartridge of the wafer sample, the measurement cartridge representing a pore structure disposed over the substrate and having a film layer disposed inside the pore structure. The system obtains a contribution value of the measurement cartridge corresponding to the first X-ray beam, the contribution value representing that the species signal outside the measurement cartridge contributes to the same species signal inside the measurement cartridge. The system obtains a first measurement detection signal corresponding to a measurement of the measurement cartridge using the first X-ray beam. The system determines a measured value of the film layer based on the first measured detection signal, the contribution value, and the first mix score.