11 results about "Chemical test" patented technology

The application provides a chemical test tube rack for a thermal power plant. The chemical test tube rack for the thermal power plant comprises a support frame, a test tube placing mechanism and a drainage mechanism. The support frame comprises a horizontal bottom plate, a vertical support rod and a horizontal top plate connected in sequence. The test tube placing mechanism comprises a placing frame and a partition plate. The partition plate is arranged inside the placing frame to form a plurality of placing grooves for placing chemical test tubes. The placing frame is arranged obliquely and fixedly connected to the bottom of the horizontal top plate. The drainage mechanism is installed on the vertical support rod. A flow guide inclined plate is connected between the drainage mechanism and the placing frame. The flow guide inclined plate is used to guide waste liquid generated by the test tube placing mechanism to the drainage mechanism. The chemical test tube rack for the thermal power plant can avoid mutual influence between the chemical test tubes by arranging a plurality of placing grooves and placing each chemical test tube in a corresponding placing groove. Meanwhile, the oblique arrangement can facilitate the taking out and storage of each layer of chemical test tubes.

Laboratory device for chemical testing

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 utility model relates to the technical field of air-drying devices, and more particularly to a rapid air-drying device for chemical test tubes. It includes: an air duct at the top of the dryer body; an adjusting component on the air duct, comprising: an inner tube disposed inside the air duct; a sliding groove formed on the inner wall of the air duct; a retaining groove formed on the inner wall of the air duct and communicating with the sliding groove; and a protrusion disposed on the outer wall of the bottom end of the inner tube, sliding within the sliding groove and the retaining groove. The adjusting component controls the position of the inner tube inside the air duct by controlling the connection of the protrusion at the bottom end of the inner tube with different retaining grooves, thereby controlling the height of the inner tube and facilitating the drying of test tubes of different lengths. This device is more practical than existing devices.

1. The name of the design product: chemical reagent shelf. 2. The use of the design product: the design product is a chemical reagent shelf, which is used to fix on the chemical test table to place the chemical reagent bottle. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

This invention belongs to the field of electrochemical sensor technology and aims to solve the problems of low sensitivity, insufficient charge transport efficiency, and weak target enrichment ability of existing electrochemical detection methods for niclosamide. It provides a highly sensitive electrochemical detection method and sensor for niclosamide based on MOF / COF composite materials. The sensor uses a glassy carbon electrode modified with MOF / COF composite material as the working electrode, combined with an auxiliary electrode and a reference electrode to form a three-electrode system. It utilizes the synergistic effect of the high specific surface area and high catalytic activity of MOF and the good conductivity and ordered porous structure of COF to enhance the adsorption, enrichment, and electron transfer efficiency of niclosamide. The detection method achieves accurate detection of niclosamide by optimizing electrochemical test parameters and employing square wave voltammetry. This invention features a low detection limit, wide linear range, strong anti-interference ability, excellent stability and reproducibility, and can rapidly detect niclosamide in water, soil, fish, and tablets, possessing broad practical application value.

A quantitative pooled-sample testing method and apparatus for chemical test items of consumer products are provided. The test method includes: calculating a maximum number of samples that can be pooled according to parameters such as regulatory limit requirements, measurement uncertainty, the number of pooled samples, a sample pooling ratio, and the like; establishing a searchable table according to a relationship between a qualified rate, the number of samples that can be pooled, and reduced workload; for various items to be tested, directly querying the table to acquire reduced workloads corresponding to different numbers of samples that can be pooled; and when the number of samples that can be pooled does not exceed a maximum value and corresponds to the most greatly reduced workload, determining that number of samples that can be pooled as an optimum number of samples that can be pooled, and performing pooled-sample testing.

The application provides a multi-source heterogeneous thermal power plant unit carbon emission management method, system and medium, and belongs to the technical field of carbon emission. The method comprises the following steps: collecting coal for entering a furnace, and preparing a monthly carbon emission analysis coal sample; performing chemical test on the monthly carbon emission analysis coal sample to obtain the sufficient combustion carbon emission amount of the coal for entering the furnace, and calculating the total carbon emission amount of all units; distributing carbon emission indexes according to unit loads, and performing multi-stage constraint optimization on the units when the carbon emission exceeds the carbon emission indexes; recording coal sample data in the processes of collecting, preparing the coal sample and chemical test, and performing safety supervision through a double electronic signature mechanism. The method realizes traceability of carbon emission data sources and accuracy and stability of accounting results by establishing a complete and normative carbon emission calculation process, and realizes collaborative regulation and control of carbon emission amount and load distribution by constructing a multi-stage constraint optimization model.

The application provides a full-automatic electrochemical test system, which comprises a mounting frame and a mechanical arm, a quick-change module, a storage mechanism, a storage rack, a first tray, a second tray, a third tray, a cap screwing mechanism, a recycling box, a cleaning mechanism and a mobile assembly device which are integrated on the mounting frame; the storage mechanism is used for carrying a work part matched with the mechanical arm, and the work part is detachably connected with the mechanical arm; the quick-change module can fix the work part so that the mechanical arm is separated from the work part; the storage rack is used for carrying a lower tooling; the first tray is used for carrying a sample piece; the second tray is used for carrying a suction head; the third tray is used for carrying a reagent bottle, an electrode assembly and a test cup; the cap screwing mechanism can clamp the reagent bottle and open the cap of the reagent bottle; the recycling box is used for recycling the waste suction head; the cleaning mechanism is used for cleaning the test cup; and the mobile assembly device is used for assembling the sample piece, the test cup and the motor assembly.

An intelligent diagnostic toilet system for automated stool analysis, consisting of: a diagnostic chamber integrated into the drainage path of a toilet system, wherein the chamber is equipped with a hydrophobic and oleophobic optical window made of quartz or coated acrylic material, configured to allow multispectral light transmission while preventing contamination; a multispectral optical sensor module positioned next to the diagnostic chamber and configured to emit and detect reflected or transmitted light in at least the visible, near-infrared (NIR) and ultraviolet A (UV-A) ranges to quantify stool components including water content, lipid content, hemoglobin and bile pigments; a fluidically coupled unit with the diagnostic chamber for the detection of volatile organic compounds (VOCs), comprising a variety of solid-state gas sensors selected from the group consisting of metal oxide semiconductor, conductive polymer and ion mobility sensors, and configured to measure gases containing ammonia, hydrogen sulfide, methane and volatile fatty acids; a chemical test system comprising an interchangeable cartridge assembly containing a plurality of reagent-impregnated filter paper strips, wherein the cartridge is connected to a swab actuator configured to dispense a micro-amount of stool onto one or more reagent strips to trigger colorimetric chemical reactions; an imaging unit that is optically aligned with the aforementioned chemical test system to acquire multispectral colorimetric data of the reacted reagent strips and thus determine the presence of specific biochemical markers; a self-cleaning subsystem consisting of an array of micro-nozzle spray nozzles directed at the optical window and chamber surfaces for applying cleaning fluid, and a UV-C sterilization module located inside or near the chamber to decontaminate the surfaces after each analysis cycle; and an embedded processing unit operationally connected to the multispectral optical sensor module, the VOC detection unit and the imaging unit, wherein the processing unit performs a data fusion technique configured to correlate spectral, gaseous and colorimetric data to determine stool properties, generate diagnostic indices and output user-specific health assessments via an encrypted communication interface.

This invention discloses a visual experimental device and method for seepage-acid etching in sulfide-bearing rock formations, belonging to the field of rock seepage and micro-acid etching technology. It includes: a water-rock reaction system, comprising at least one microfluidic chip for simulating the pore-fracture medium structure of sulfide-bearing rock formations; a sample injection system for quantitatively and pulse-free injection of reaction fluid into the microfluidic chip; a real-time observation system for visual observation and data acquisition of the seepage and acid etching processes within the microfluidic chip; and a hydrochemical testing system for real-time monitoring and collection of the reaction fluid flowing through the microfluidic chip. The output of the sample injection system is fluidly connected to the input of the microfluidic chip in the water-rock reaction system, and the output of the microfluidic chip is fluidly connected to the hydrochemical testing system. This invention, by constructing a visual seepage-acid etching experimental device, can directly acquire multi-source data such as seepage field evolution, mineral dissolution morphology, and dynamic changes in hydrochemistry.