81results about How to "Reduce cross contamination" patented technology

The invention belongs to the technical field of microorganisms, and particularly relates to a microorganism detection culture device and method.The system comprises an intelligent environment control system, and a sensor monitors the temperature, humidity and gas concentration of a culture environment in real time to ensure that environment parameters needed by microorganism growth are kept in the optimal state; the automatic sample processing and operating system avoids pollution or errors caused by manual intervention through a mechanical arm or an automatic transmission device; the real-time image monitoring and analyzing system is used for monitoring the growth state of the microorganisms in the culture dish; the camera can continuously shoot images in the culture process; the rapid detection module rapidly obtains activity information of microorganisms, rapid detection is achieved, and time needed by traditional culture is shortened. According to the invention, accurate control, automatic operation and rapid detection are realized, and an efficient, safe and intelligent solution is provided for microbial culture and detection.

The invention relates to the technical field of farm disinfection, in particular to an intelligent disinfection system for a farm. The system comprises an initial determination module, a periodic disinfection module, an environment monitoring module, a first analysis control module, a second analysis control module and a feedback correction module. According to the method, the initial disinfection parameter cluster of each breeding area in the target breeding farm is determined according to the actual growth stages of the breeding targets and the actual number corresponding to each actual growth stage, each breeding area is periodically disinfected according to the initial disinfection parameter cluster, and each breeding area is monitored in real time so as to be singly judged; and performing first-class adjustment and second-class adjustment on the initial disinfection parameter cluster based on a first verification result and a second verification result in combination with the first verification result and the second verification result to determine whether the initial disinfection parameter cluster is subjected to first-class adjustment and second-class adjustment. And according to the first analysis control result and the second analysis control result, determining whether to perform feedback correction on a preset initial disinfection period of each breeding area.

The invention discloses an automatic experiment method capable of covering more reaction types, and belongs to the technical field of chemical synthesis. The unit operation is divided into material transmission (solid-liquid-gas feeding), heat transfer (evaporation and condensation), treatment processes (distillation, extraction and adsorption) and thermal processes (temperature, pressure and liquefaction) according to chemical operation units. All equipment and mechanisms are operated, the accuracy of feeding, reaction and the like can be kept, and the conditions of cross contamination and work errors are reduced; the device has the advantages that the device is simple in structure and convenient to operate, harm to experimenters caused by toxic substances can be effectively reduced without manual operation, all-weather use can be achieved through programs and equipment, a Python instruction can be directly copied and used, different reactants can be prepared according to different requirements, and compared with labor, the device has the advantages that the cost is lower, and benefits are higher.

The invention discloses an alkali-soluble dihydroquinoline phenazine organic active substance, an electrolyte containing the same and an application of the electrolyte, the alkali-soluble dihydroquinoline phenazine organic active substance has a molecular structural formula shown in a formula (I), in the molecular structural formula, R1, R2, R3, R4, R5, R6, R7 and R8 are respectively and independently selected from-H,-OH,-COOH,-SO3H,-Ar,-PO3H,-OCxH2xCOOH,-OCyH2ySO3H and-OCzH2zPO3H, and at least one alkali-soluble group is contained. The active material has the advantage of multi-electron transfer, can accumulatively transfer 4 equivalent electrons, and has the potential of constructing a high-energy-density flow battery.

The invention discloses a method for improving alkaline water electrolysis hydrogen production efficiency by using electrolyte concentration difference, and belongs to the technical field of water electrolysis hydrogen production. The method comprises the following steps: adding KOH electrolyte with the concentration of 30wt% into the cathode region on one side of the diaphragm, and adding KOH electrolyte with the concentration of 35wt% into the anode region on the other side of the diaphragm; and electrifying the electrolytic bath, controlling the temperature to be 80-90 DEG C, and carrying out electrolytic reaction on the water under the action of the electric field. The hydrogen production efficiency of alkaline electrolyzed water is improved by utilizing the electrolyte concentration difference, the hydrogen production efficiency and the hydrogen purity can be improved, the energy consumption and the equipment cost can be reduced, the reliability and the durability of the system are improved, meanwhile, the environmental influence is reduced, and a positive role is played in promoting the production and the application of green hydrogen.

The invention provides a tissue slice patch preparation method based on a tissue chip. The tissue slice patch preparation method comprises the following steps: mixing raw materials to prepare a receptor wax block, collecting a tissue core and transferring the tissue core to the receptor wax block to form a fused wax block, cooling the fused wax block, storing the fused wax block, and carrying out operations of pre-cooling correction, slice unfolding and slice baking. According to the tissue chip-based tissue slice patch preparation method, the tissue chip can be better protected, and the integrity of the tissue chip is ensured.

This application discloses an integrated cleaning device, relating to the field of cleaning equipment, comprising a frame; a loading rack installed at one end of the frame; a unloading rack installed at the other end of the frame; a transfer mechanism installed on the frame and used for transferring optical components; a hydrocarbon cleaning unit installed on the frame and adjacent to the loading rack, the hydrocarbon cleaning unit being used to clean optical components using hydrocarbon solvents; and an HFE cleaning unit installed on the frame and adjacent to the unloading rack. This application reduces the footprint by integrating the hydrocarbon cleaning unit and the HFE cleaning unit onto the frame; it reduces mutual interference and improves safety by physically isolating the hydrocarbon cleaning unit and the HFE cleaning unit with partitions; and it prevents large amounts of hydrocarbon solvent from entering the next process by using air knife purging, greatly reducing the contamination load of subsequent HFE solvents and minimizing cross-contamination.

The utility model provides a high-melting-point graphite pipe for elemental analysis, which belongs to the technical field of spectral analysis and comprises a circular hollow graphite pipe main body and transverse support parts symmetrically arranged on two sides of the graphite pipe main body, an inner pyrolytic carbon layer is deposited on the inner wall of the graphite pipe, a porous structure is arranged in the inner pyrolytic carbon layer, and an outer compact pyrolytic carbon layer is further deposited on the surface of the inner pyrolytic carbon layer. Through the inner pyrolytic carbon layer and the outer compact pyrolytic carbon layer, in the high-temperature working process, the inner wall pyrolytic carbon layer can be selectively consumed to form a compact glassy carbon film, a self-adaptive protection mechanism enables the graphite tube to still keep stable analysis performance under extreme conditions, reaction or permeation of a detected element and graphite at high temperature is reduced, and the analysis accuracy of the graphite tube is improved. The phenomenon of cross contamination is reduced, the memory effect of the graphite pipe is reduced by 70%, but the memory effect of a traditional pyrolytic graphite pipe can only be reduced by 30-40%, and the graphite pipe is particularly suitable for analysis of high-melting-point elements.

The invention provides a fully automatic device for taking a post-needle patch, comprising a shell, a post-needle patch taking port being provided on the shell, a post-needle patch placing device being provided in the shell, the post-needle patch placing device being located at one side of the post-needle patch taking port, a waste tape recovery device being provided in the shell, the waste tape recovery device being located below the post-needle patch taking port, a photoelectric sensor being provided at one side of the post-needle patch taking port, and a PCB control board being electrically connected to the photoelectric sensor being provided in the shell. The invention can realize automatic peeling of the adhesive patch from the waste tape without the user having to touch the invention in the whole process, thereby ensuring aseptic operation and reducing the difficulty of operation to the greatest extent; and can prevent the user from touching the device during use, thereby reducing cross contamination; and effectively solves the problem that it is difficult for medical staff to peel off the adhesive dressing due to wearing latex gloves during clinical operation, and at the same time, multiple-piece loading also meets the quick requirements in hospital medical practice.

The present disclosure relates to the technical field of insulation board production, and one embodiment of the present disclosure provides a multi-channel batching machine for insulation board production, which comprises a bottom plate, a main frame, a fixed sleeve and a rolling tank. The main frame is fixed on the bottom plate, the fixed sleeve is fixed on the main frame, the rolling tank is horizontally rotatably connected at one end of the fixed sleeve, a feeding assembly is arranged on the fixed sleeve, a stirring assembly is arranged in the fixed sleeve and the rolling tank, and a discharging assembly is arranged on the rolling tank and the bottom plate. The feeding assembly comprises a plurality of feeding pipes, the feeding pipes are fixed at the bottom of the fixed sleeve, conveying augers are arranged in the feeding pipes, and feeding hoppers are arranged at the top of the feeding pipes. Through the above technical solution, the technical problem of low feeding efficiency, different raw materials needing to be put in at different times, and prolonged batching period in the prior art is solved, which particularly affects the overall processing efficiency in large-scale production.

The utility model belongs to the technical field of biological safety cabinets, and particularly relates to a laboratory biological safety cabinet which comprises a base, a safety cabinet body is vertically connected right above the base in a sliding mode, two symmetrically-arranged storage grooves are formed in the surface of the base, and protection mechanisms are arranged in the storage grooves. The front position of the safety cabinet body is blocked by arranging the protection mechanism, the placement frame and the warning tape, personnel are prevented from mistakenly entering the area of the safety cabinet body, the personnel are prevented from approaching and driving air to flow, the probability of cross contamination between the personnel and samples or between the samples is further reduced, and the working efficiency is improved. The safety cabinet has the advantages that the safety cabinet is simple in structure and convenient to use, the accuracy of the safety cabinet body in the test process is improved, the safety and stability of the safety cabinet body in use and the accuracy in the subsequent test process are guaranteed, the occupied area can be reduced when the safety cabinet body is not used, the safety cabinet body can be quickly unfolded when needed, meanwhile, the placement frame can be stably stored, and the equipment convenience is improved.

The utility model provides a drum drying device for polyaluminum chloride production, which comprises a mounting drum hinged above a bottom plate and a drying drum rotatably connected in the mounting drum and used for drying polyaluminum chloride, and an inclined mechanism is arranged at the top of the bottom plate and enables materials to be more uniformly distributed in the drying drum. Therefore, it is guaranteed that the materials of each part can make full contact with a heat source, uniform drying is achieved, meanwhile, the dried materials are helped to be discharged from the interior of the drying cylinder more smoothly, and the materials are prevented from being accumulated in the drying cylinder. The feeding mechanism is hinged to the side, away from the tilting mechanism, of the mounting barrel, and the barrel cover can be opened, so that the interior of the equipment is easier to maintain and clean, the downtime can be shortened, and the production efficiency can be improved. And the stirring blades are fixed in the drying cylinder, so that the materials are more fully mixed in the drying process, and the materials are ensured to be uniformly heated and dried.

The utility model provides a kind of line arrangement frame of IBE ion beam etching equipment, line arrangement frame includes first layer board, second layer board sequentially arranged from bottom to top;First layer board is equipped with liquid supply component;Second layer board is equipped with gas supply component, realize the complete isolation of liquid path and gas path in space, even if liquid leakage, also can not permeate gas path, significantly reduce cross contamination and security risk;While liquid inlet chamber and liquid outlet chamber are respectively connected to processing chamber equipment by manual ball valve parallel liquid supply and liquid return;With liquid flow detection meter, it can ensure that each chamber obtains stable, uniform process liquid, improve temperature control and etching uniformity;Compressed air component, nitrogen component are gathered by valve island, and the output end of valve island is respectively connected to each pneumatic actuating mechanism, to realize one-stop piping;Only need to operate at valve island when fault or maintenance, without disassembling one by one, can greatly shorten downtime.

The utility model relates to a medical cable sterile isolation protective sleeve which comprises a protective sleeve main body, the protective sleeve main body is of a straight cylinder structure with two open ends, a plurality of air channels of spiral structures are annularly distributed on the wall body of the protective sleeve main body, a first flow dividing cavity of an annular structure is formed in the outer wall of an inlet port of the protective sleeve main body, and a second flow dividing cavity of an annular structure is formed in the outer wall of the inlet port of the protective sleeve main body. The outer wall of the inserting port of the protective sleeve body is provided with a second flow dividing cavity of an annular structure, the two ends of the air channel are communicated with the corresponding positions of the first flow dividing cavity and the second flow dividing cavity respectively, the first flow dividing cavity is provided with an air inlet port, and the second flow dividing cavity is provided with an air outlet port. As the inside of the protective sleeve main body is not contacted in the opening process of the protective sleeve main body, the possibility of cross contamination is extremely low. And the inflated air channel forms a protection layer on the outer wall of the protection sleeve main body, and the protection sleeve main body is prevented from being damaged in the first time, so that the use safety is improved.

This utility model relates to a modular spray granulation drying chamber that is easy to clean, belonging to the field of spray granulation drying technology. It includes a mounting frame, a support frame fixedly connected to the top of the mounting frame, a feeding chamber on the top of the support frame, an outer shell on the top plate of the mounting frame, an inner barrel inside the outer shell, and a connecting barrel fixedly connected to the mounting frame, with the top of the connecting barrel fitting snugly against the bottom of the inner barrel. By using the mounting frame, support frame, feeding chamber, outer shell, inner barrel, motor, bidirectional threaded rod, and threaded block in coordination, the drying chamber of the spray granulation dryer can be quickly cleaned, significantly improving cleaning efficiency, shortening downtime, and allowing for thorough cleaning of the drying chamber without dead corners, reducing cross-contamination, thereby reducing the risk of material residue, ensuring product quality, extending equipment life, and reducing maintenance costs.

The utility model relates to food detection technical field discloses a food detection sample rack, including storage box, multiple storage compartments are equipped with in storage box equidistance, the pullable frame body is equipped in storage compartment, and the frame body is U type structure, is equipped with the transverse plate on the frame body, multiple placing holes are equipped with equidistance on the transverse plate, and the fixed assembly is connected at the placing hole, the fixed assembly includes two symmetrical settings adjusting plate, and the vertical board is symmetrically equipped with on the transverse plate one side at the placing hole, and the two vertical boards are rotatably connected with bidirectional screw rod, and the one end of bidirectional screw rod extends to one of vertical board one side and is connected with knob, and the connecting plate is connected on the adjusting plate, and the connecting plate one end is with bidirectional screw rod screw connection, and the clamping plate is equipped with on the adjusting plate through a plurality of springs. The setting of fixed assembly, drive the interval of two clamping plates through bidirectional screw rod, realize the fixed clamping test tube of different size, ensure its security of storage.

The invention discloses a method for removing viruses and endogenous and exogenous bacteria from small yellow ginger, and relates to the technical field of virus-free seedling cultivation, and the method comprises the following steps: S1, selecting ginger blocks which grow robustly and fleshy and are free of damage and plant diseases and insect pests as explant materials, and placing the ginger blocks in a dark environment at 28-30 DEG C for accelerating germination; s2, when the ginger buds grow to 2-3cm, selecting healthy and full ginger buds, cutting off the ginger buds, washing the ginger buds with running water, and disinfecting the ginger buds; s3, under a sterile condition, transferring the disinfected ginger buds into a primary culture medium, screening out the ginger seedlings with bacteria by adopting a high-low temperature method, and ending culture when the ginger buds grow 1-3 coleoptiles; s4, stripping leaf coleoptiles of the screened healthy and pollution-free ginger buds, cutting off 1-3mm stem tips from growing points, and transferring the stem tips into a clumpy bud induction culture medium for multiplication culture at the culture temperature of 20-25 DEG C and the illumination intensity of 2500 LUX for 8-15 days; s5, the clustered seedlings obtained after proliferation are cut into single seedlings from the base parts, the single seedlings are placed in a rooting culture medium, and virus-free plants are obtained and cultured for 30-45 d at the culture temperature of 22-25 DEG C and the illumination intensity of 3000 LUX.

This invention relates to the field of laboratory analytical instrument technology, specifically to a water bath nitrogen blowing device, comprising a water bath nitrogen blowing instrument, a drain pipe fixedly connected to one end of the drain pipe, and a wastewater tank fixedly connected to one end of the drain pipe. A protrusion is fixedly installed inside the wastewater tank, and the protrusion has multiple sets of first straight grooves, inclined grooves, and second straight grooves. A hydraulic rod is installed at the upper end of the wastewater tank, and a fixed box is installed at the power output end of the hydraulic rod. Multiple sample collection tubes are installed inside the fixed box for sampling wastewater. Each sample collection tube has a sliding sealing rod slidably connected inside, and a sliding ball is fixedly connected to one end of the sliding sealing rod. The sliding ball is slidably connected to each of the first straight groove, inclined groove, and second straight groove. This device can automatically sample wastewater at different depths when sampling and testing is required.

This utility model discloses a fully automatic tea rolling machine for automatically turning and evenly distributing tea leaves, relating to the technical field of tea rolling machines. It includes a support platform with three rotating cranks, a stainless steel rolling drum connected to the three rotating cranks, a lid lifting assembly on the drum, and a stainless steel rolling disc on the support platform. Friction rings are installed through each of the three rotating cranks. In this invention, the limiting rollers limit the heightening rings, causing them to drive a cleaning mechanism to rotate stably. A shovel lifts edge tea leaves, a cleaning brush disperses the leaves, and an electronic fan blows the leaves towards the center area, achieving automatic leaf turning and even distribution during the rolling process. This effectively solves the problem of uneven rolling caused by tea leaf accumulation at the edges in traditional rolling machines, reduces cross-contamination caused by untimely or incomplete manual cleaning, and improves production efficiency.

The utility model relates to industrial automation technical field discloses an industrial standard gas automatic proportioning device, including the cabinet body, the cabinet body inside is physically divided into the gas confluence area of upper part and the electrical control area of lower part, be provided with a plurality of parallel gas treatment branch in the gas confluence area, operation and display panel, set up in the front side of electrical control area, mixer, including outer mixing cylinder and inner mixing cylinder, the lateral wall of outer mixing cylinder is set up with a plurality of communicating holes, a plurality of communicating holes with the export of a plurality of gas treatment branch are linked, back pressure regulating valve, its installation in the export of outer mixing cylinder, in the utility model, through setting back pressure regulating valve, the working environment of core flowmeter is stabilized, and the proportioning precision is promoted, simultaneously, the safety interlock design of its normally closed valve, cooperate electrolytic polishing pipeline and metal face seal joint, on the basis that realizes active safety protection, guarantees the high purity of mixed gas again.

The invention provides a sample analysis system and method. The sample analysis system comprises a first sample analyzer for detection of a first type of detection items, a second sample analyzer for detection of a second type of detection items and a sample transport device, and the second type of detection items comprise ion detection items. When the to-be-detected item information of the sample of the target sample tube comprises a first detection item and a second detection item, a bearing unit bearing the target sample tube is conveyed to a first sample analyzer and a second sample analyzer through a sample conveying device; and before the first sampling needle of the first sample analyzer sucks the sample from the target sample tube, a cleaning module of the first sample analyzer is used for cleaning the ground sampling needle with cleaning liquid and deionized water in sequence. According to the mode, the influence of the cleaning solution of the first sample analyzer on the detection result of the second sample analyzer is avoided, and the cross contamination between the analyzers is reduced, so that the overall detection precision of the sample analysis system is improved.

The utility model discloses a screening device for high purity alumina research, which comprises a mounting rack, the top end of the mounting rack is fixedly connected with a filter box, the top end of the filter box is sleeved with a primary filter frame, the tops of the two sides of the filter box are provided with switch seats, one end of the mounting rack is fixedly provided with a connecting plate, and the other end of the mounting rack is provided with a secondary filter frame. And a screening mechanism is installed on the connecting plate, a flow guide plate is connected to the bottom end of the mounting frame, and a collecting frame is arranged below the mounting frame. According to the screening device for high-purity aluminum oxide research, due to the multi-stage screening structure of the device, an operator only needs to add high-purity aluminum oxide materials into the primary filtering frame at a time, after the device is started, all screening parts work cooperatively, and the multi-stage screening process is automatically completed. Materials sequentially pass through different filter screens in the device, products with different granularities can be obtained without manual intervention, an operator does not need to repeatedly replace equipment or the screens, the operation steps and time are reduced, and the research process is accelerated.

The utility model relates to the field of sewage treatment, in particular to a convenient-to-clean combined type sewage treatment biochemical pool which comprises a pool body with an opening in the top, the pool body is communicated with a blow-off pipe, a blow-off valve is arranged on the blow-off pipe, and a partition plate dividing an inner cavity of the pool body into an anaerobic cavity and an aerobic cavity is placed in the pool body. A primer pump used for communicating the anaerobic cavity with the aerobic cavity is arranged outside the tank body, a telescopic groove is vertically formed in the inner side wall of the tank body, the partition plate extends into the telescopic groove and is tightly attached to the telescopic groove, a plurality of supporting rods are hinged to the side, located in the telescopic groove, of the partition plate, and the supporting rods slidably penetrate out of the tank body; a compensation groove is vertically formed in the other side, opposite to the telescopic groove, of the inner wall of the pool body, and a compensation insertion plate is vertically inserted into the compensation groove in a matched mode and is inserted into the partition plate in a matched mode. The cleaning device has the advantage of improving the cleaning efficiency.

The invention discloses a pH response type nanorod intelligent antibacterial coating constructed on the surface of stainless steel for the first time. According to the coating, stimuli-responsive polymer polyacrylic acid (PAA) and phage-derived endolysin Lys81 are grafted to a ZnO nano-column, and self-regulation is carried out in response to environmental conditions. In the initial stage of bacterial adhesion, the surface of the nanorod shows remarkable mechanical bactericidal activity, and the bacterial adhesion is effectively inhibited by the super-hydrophilic PAA layer. In a later stage, when many live bacteria and dead bacteria adhere to the surface of the nanorod, the PAA chain disintegrates, exposing the endolysin bottom layer that lyses the damaged bacteria. In addition, along with the increase of the pH value of the environment, the attached dead bacteria can be released once the hydrophilicity of the PAA chain is recovered. The purpose of the present invention is to apply an antibacterial coating to a stainless steel surface used in food processing, thereby improving surface hygiene and preventing cross contamination of fresh agricultural products.

The invention discloses a photoelectric microfluidic automatic control method for screening microalgae growth conditions, which is characterized by comprising the following steps: preparing different types of culture medium solutions, respectively introducing the culture medium solutions into a photoelectric wetting chip, and generating different types of culture medium drops on the photoelectric wetting chip; automatically obtaining the current positions and IDs of a plurality of culture medium drops, and automatically obtaining the current positions and IDs of algae drops; according to the current positions and the IDs of the plurality of culture medium drops and the current positions and the IDs of the algae drops, respectively planning moving paths of the plurality of culture medium drops to the corresponding algae drops; respectively driving the plurality of culture medium drops to move to the corresponding algae drops in parallel according to the moving path through the plurality of light spots for fusion; and culturing the fused liquid drops in an illumination incubator so as to screen out a culture medium solution which is most suitable for the growth of the algae drops.

The utility model discloses a kind of denture is used to oral impression protection device, including the protective box with top being open, the protective cover of open shielding sealing is arranged in protective box top, and protective cover is detachably arranged, the protective box and protective cover are prepared using heat preservation, light shielding material, the storage cylinder is installed in the inboard of protective box, the storage cylinder side is equipped with several air vents. The denture is used to oral impression protection device, by storing oral impression in the sealed environment of heat preservation and protecting it, reduce the influence of external environment temperature to oral impression, while dry agent is arranged in protection device, for dehumidification, avoid oral impression to be influenced by temperature and humidity and appear discoloration, softening etc., the influence of external force to oral impression can be also reduced by the protection device, avoid oral impression to be stressed deformation even breakage in storage or transportation process, oral impression is better protected.

The invention belongs to the field of molecular biological detection, particularly relates to rapid detection and identification of rickettsia pathogens, and more particularly relates to detection of five pathogenic pathogens including rickettsia sibirica, rickettsia rickettsia, rickettsia araneus, rickettsia commisonii and Japanese rickettsia through a multiple real-time fluorescent PCR (polymerase chain reaction) detection technology. The composition provided by the invention can realize specific detection of five pathogenic pathogens, has high detection sensitivity (up to 500 copies / mL), can simply, rapidly and accurately detect and distinguish rickettsia pathogens, shortens the judgment time of pathogen types, and accelerates implementation of countermeasures.

This utility model discloses a detachable aseptic spray drying collection device, relating to the field of spray drying material collection technology. It includes a bottle body with a sealing valve at the top. By fitting the outer wall of a sealing sleeve onto the inner wall of a feed column, the ring plate fixed to the outer wall of the sealing sleeve engages with the inner wall of the ring groove. This allows workers to quickly seal the bottle body using the sealing valve, separating the device from the feed pipe, effectively isolating airflow, significantly reducing material volatilization, dispersion, and moisture absorption during collection and transfer, improving yield, and reducing environmental and cross-contamination. By matching the inner wall of the sealing valve with the outer wall of the sealing ring, the inner wall of the sealing valve abuts against the top of the bottle body. A support plate slides on the outer wall of the bottle body until its top abuts against the bottom of the sealing ring, facilitating control of the sealing valve's sealing of the channel between the bottle body and the feed column to prevent material overflow from the bottle body.

The utility model discloses a double -end rod cover sampling detection integration device, including collection detection rod and double -end rod cover, and collection detection rod includes the rod body, middle cover, sampling rod who is detachably assembled as an organic whole in proper order, and double -end rod cover includes the first cavity and the second cavity who do not communicate with each other, and the sampling column of sampling rod is detachably inserted into the first cavity, and the second cavity is by sealed liquid storage cavity and one end opening's sampling cavity is composed, and is sealed through the sealing film between, and the sealing film can be sampled column puncture, and sampling rod is equipped with liquid channel, and the middle cover is equipped with the liquid guide channel and the rod body assembly cavity who communicate, and the liquid channel and liquid guide channel communicate, and the rod body is inserted into the rod body assembly cavity, and is equipped with detection channel and test strip in the rod body, and the entrance of detection channel communicates with the rod body assembly cavity of middle cover. The utility model realizes sampling detection two in one, and the step of additional liquid transfer, mixing, sampling detection again after specimen collection is not needed, reduces the cross -contamination in the operation process, and the operation is simple and convenient.

This utility model relates to the field of wastewater treatment technology, and in particular to a wastewater treatment testing device, comprising a device body, a motor fixedly installed inside the device body, a sample turntable driven by the output end of the motor, a plurality of sample slots on the surface of the sample turntable, a spring fixedly installed at the bottom of the sample slot by a bracket, a baffle fixedly installed at the lower end of the spring, an outlet at the bottom of the sample slot, the outlet being fitted and connected to the baffle, a cover plate hinged to the surface of the device body, a detection cylinder fixedly installed at the upper end of the cover plate, and by driving the sample turntable with the motor, wastewater samples in multiple sample slots can be automatically and sequentially tested, greatly improving the testing efficiency and reducing the tediousness of manual operation, and is especially suitable for the testing of large batches of samples.