52 results about "Imidacloprid" patented technology

There is disclosed magnetic covalent organic frameworks (COFs) functionalized with Fe3O4 nanoparticles (Fe3O4@HMN-COF, Fe3O4@MAN-COF, and Fe3O4@SIN-COF) for the efficient removal and degradation of imidacloprid (IMI) from aqueous solutions. These COFs, incorporating nitrogen-rich frameworks and π-electron systems, enhance IMI adsorption through π-π interactions, hydrophobic interactions, and hydrogen bonding. The magnetic properties provided by Fe3O4 nanoparticles allow rapid separation from water using an external magnetic field. The COFs exhibit high surface areas, with BET surface areas reaching up to 910 m2 / g, and high adsorption capacities, up to 600 mg / g. The COFs also exhibit excellent stability, high surface area, and reusability, with minimal loss in performance over multiple cycles. Photocatalytic degradation of IMI is optimized under UV light, with Fe3O4@HMN-COF achieving 98.5% degradation efficiency under specific conditions. These magnetic COFs present a sustainable solution for remediating pesticide-contaminated water, demonstrating effectiveness in various real-world applications.

The invention discloses an Au (at) PtNCs nano-enzyme probe for detecting novel nicotine pesticides as well as a preparation method and application of the Au (at) PtNCs nano-enzyme probe, and belongs to the field of rapid detection of biosensors. The invention provides an Au (at) PtNCs nano-enzyme probe, which is generated by combining AuNCs and PtNCs and coupling with a second antibody, and can effectively realize rapid specific detection of novel nicotine pesticides such as imidacloprid and the like. The linear range of the biosensor probe for detecting the imidacloprid pesticide is 0.1-100 [mu] g / L, and the limit of detection (LOD) can reach 0.127 [mu] g / L and 0.119 [mu] g / L respectively by combining a colorimetric method and a fluorescence method.

The invention provides an insecticide delivery preparation based on binary synergistic nanoparticles and a preparation method thereof, an IMI (at) AgNPs (at) CMSNs compound is prepared, and the binary system remarkably overcomes the drug resistance of cotton aphid to imidacloprid by integrating silver nanoparticles (AgNPs) and mesoporous silica nanoparticles (MSNs).

This invention belongs to the field of microbial technology, specifically relating to a strain of Acetobacter peroxide 672 and its applications. The Acetobacter peroxide 672 strain of this invention can enhance the antagonistic activity of Pichia pastoris against Rhizoctonia solani and also antagonizes Colloidal anthracnose, providing a multi-faceted solution for the biological control of crop diseases. Furthermore, the strain possesses the ability to produce indoleacetic acid, which can significantly promote the growth and development of grain crops such as wheat and corn, promote root expansion, enhance nutrient and water absorption, and thus effectively increase biomass. In addition, the strain can tolerate and degrade chemical pesticide components such as imidacloprid and carbendazim, alleviating soil pesticide residue pollution, and can effectively alleviate the inhibitory effects of low pH stress on crops, enhancing their stress resistance. Therefore, the Acetobacter peroxide 672 strain of this invention has significant application value in the biological control of crop diseases, crop growth promotion, soil pesticide residue remediation, and enhancing crop stress resistance.

The utility model relates to the field of agriculture discloses a kind of imidacloprid pesticide light-shielding polyester bottles, including bottle body, the top end of bottle body is fixedly connected with bottle pipe, the outer wall of bottle pipe is threadedly connected with bottle cap, the top end of bottle body is provided with limiting mechanism, the bottom end of bottle cap is equipped with clamping groove, the top end inner wall of bottle cap is fixedly connected with contact pad, the limiting mechanism includes clamping block, the top end of bottle body is fixedly connected with clamping block, the outer wall of clamping block is fixedly connected with pressing plate. In the utility model, by the cooperation of clamping block and clamping groove, two groups of pressing plates are pressed simultaneously to make clamping block flex when opening bottle cap, and it can be separated from clamping groove, and then bottle cap can be rotated, this ingenious design effectively avoids potential harm caused by children easily twisting bottle cap, and ensures the safety of use;When installing, corresponding steps can be operated to complete the stable installation of bottle cap, ensure that the storage environment of pesticide in bottle is stable and sealed well.

The present invention relates to stable synergistic insecticidal composition for synergistic and effective control of various insect pests including entire sucking pests complex. The present invention also relates to a process for preparation thereof.

The invention relates to the technical field of microbial preparations for agricultural environment restoration, and provides a microbial agent for reducing pesticide residues in soil, which is characterized by comprising the following components in parts by weight: 30-60 parts of ochrobactrum having viable count of more than or equal to 5 * 10 < 8 > cfu / g; the spore number is greater than or equal to 2 * 10 < 8 > cfu / g. The final residues of imidacloprid and difenoconazole in the compounded microbial agent are reduced to about 0.20 mg / kg, balanced and efficient removal is realized, and the possible unbalance situation of'degrading one pesticide and remaining one pesticide 'in the traditional method is avoided.

This invention provides an imidacloprid recrystallization refining and purification device, belonging to the technical field of purification devices. It includes a mixing chamber inner liner, with a mixing chamber outer shell fixedly installed outside the inner liner. The inner wall of the mixing chamber outer shell and the outer wall of the mixing chamber inner liner enclose a sealed heating chamber. A crystallization chamber inner liner is provided on the side of the mixing chamber outer shell, and a cooling crystallization tube is provided inside the crystallization chamber inner liner. An adaptive disturbance mechanism is provided inside the crystallization chamber inner liner. This adaptive disturbance mechanism can adjust the disturbance amplitude of the imidacloprid solution according to its crystallization degree. In this invention, by providing an adaptive disturbance mechanism, core components such as a float, a swinging linkage, a telescopic rod, and a stirring plate are integrated. The float senses the density change of the imidacloprid solution in real time at each crystallization stage, generates corresponding buoyancy based on the density, and achieves lifting and lowering. This, in turn, links the swinging linkage to swing around the slider on the limiting post, driving the telescopic rod to extend and retract radially along the sealed tube, ultimately achieving adaptive adjustment of the disturbance amplitude of the stirring plate.

The utility model belongs to the technical field of imidacloprid oil layer wastewater distillation, and discloses a wiped-film evaporation device for imidacloprid oil layer wastewater distillation, which comprises a base and an evaporator, a feeding tank is mounted on one side of the top end of the base, a feeding pipeline is mounted on one side of the feeding tank, a feeding pump is mounted at one end of the feeding pipeline, and the evaporator is mounted at the other end of the feeding pipeline. The evaporator comprises an evaporation barrel, a central rotating shaft, a plurality of film scraping plates, a steam inlet, a gas phase outlet, a liquid phase outlet and a driving assembly, the evaporation barrel is installed at the top end of the base, the central rotating shaft is installed in the evaporation barrel through a bearing seat, and the film scraping plates are installed on the peripheral side of the central rotating shaft at equal intervals; and the steam inlet is formed in the middle position of one side of the evaporation barrel. According to the device, the operation process is simplified, the maintenance cost is reduced, the reliability and durability of equipment are improved, and a new solution is provided for treatment of the imidacloprid oil layer wastewater.

This invention relates to the field of agricultural plant protection technology, specifically to an integrated pest management method for rapeseed suitable for aerial application, comprising the following steps: mixing Bacillus amyloliquefaciens Bam22 with imidacloprid and cyazofamid for aerial application; wherein, the Bacillus amyloliquefaciens Bam22 bacterial solution is diluted to a concentration of (2.5-5.0) × 10⁻⁶. 7 The dosage of cfu / mL was reduced to (6-9) g / mu for imidacloprid and (18-26) g / mu for boscalid. This invention achieves a synergistic effect by combining the pathogen-inhibiting effect of the Bam22 strain with the targeted control function of chemical agents. This significantly reduces the concentration of chemical agents and avoids pesticide damage from aerial spraying while ensuring that the efficacy of pest and disease control is not reduced. At the same time, the growth-promoting function of the Bam22 strain is used to restore the growth status of rapeseed, enhance the plant's stress resistance, and further ensure the yield and quality of rapeseed.

The invention provides a magnetic zinc doped NH2-MIL-125 (Ti) coated FeSx core-shell material and a preparation method thereof, and belongs to the technical field of core-shell materials. In the preparation process, Fe < 2 + > (Zn-2-MeIM-Fe) is fixed on the surface of zinc-doped NH2-MIL-125 (Ti) through coordination of 2-MeIM zinc sites and Fe < 2 + >, the zinc-doped NH2-MIL-125 (Ti) and FeSx is obtained after hydrothermal reaction vulcanization, and compared with the zinc-doped NH2-MIL-125 (Ti) / FeSx material without using 2-MeIM, the zinc-doped NH2-MIL-125 (Ti) and FeSx material has a complete disc-shaped core-shell morphology. Under the protection effect of 2-MeIM, the MOF component is more stable in the vulcanization process, and the proportion of Fe3S4 in FeSx is higher than that of FeS2. The photocatalyst shows higher activity in removal of imidacloprid by photocatalytic activation of peroxymonosulfate (PMS), and the removal rate reaches 99.9% within 10 min. In addition, the catalyst has better cycling stability, and the removal rate of 97.9% is still kept after four times of cycling.

The application relates to the technical field of pesticide residue wastewater treatment, and discloses a biological filtration system suitable for pesticide residue wastewater treatment, which comprises the following components: a photovoltaic component for providing power for the biological filtration system; a control monitoring system for monitoring filtration data and controlling the sewage flow rate of the biological filtration unit; a sewage pool for collecting pesticide residue wastewater; a biological filtration unit adopting a filter box filled with fully mixed and uniform straw, substrate and soil as the filtration unit; and a clean water pool for collecting filtered water after pesticide residue filtration. The biological filtration system can greatly filter and purify pesticide residues in the pesticide residue wastewater, and the degradation rate of imidacloprid at the water outlet after filtration is more than 99%, so that the harm of pesticide residues to the environment and plants can be greatly reduced.

The invention relates to the technical field of pesticide residue detection, in particular to a soil pesticide residue detection method which comprises the following steps: taking a soil sample to be detected, drying and grinding to obtain soil powder; mixing the soil powder with water, MgSO4 and an acetonitrile solution containing 2.5-3.5% of formic acid, carrying out vortex treatment, ultrasonic treatment and centrifugation, then collecting supernate, repeatedly extracting for one time, and then combining the supernate; and filtering the merged supernate by using a filter membrane, and analyzing by using an ultra-high performance liquid chromatography-triple quadrupole tandem mass spectrometry system. According to the method, extraction and chromatography-mass spectrometry conditions are optimized, 25 pesticide residues such as p-nitrophenol, imidacloprid and metabolites thereof can be detected at the same time, and the method has the advantages of being high in extraction efficiency, easy and convenient to operate, high in matrix interference resistance, high in sensitivity, good in accuracy and the like and is suitable for high-throughput detection and analysis of various pesticide residues in soil.

The utility model discloses a kind of imidacloprid suspending agent spraying devices, belong to imidacloprid suspending agent spraying device technical field, its technical scheme main points include electric hybrid car, the inner wall of the electric hybrid car is provided with stirring shaft, the left side of the electric hybrid car is fixedly connected with lifting frame, the left side of the lifting frame is provided with telescopic hose, the bottom of the telescopic hose is movably connected with spraying mechanism, the left side of the electric hybrid car is provided with pump body, solve the existing imidacloprid suspending agent spraying device when using, device moves with poor site adaptability, difficult to flexibly respond different operation scene, and height adjustment, component synergy is insufficient, easily lead to spraying height and target mismatch, uneven distribution of reagent, simultaneously, reagent mixing is mostly dependent on manual stirring of staff, when carrying out a period of spraying work, easy to appear precipitation condition, affect subsequent spraying effect, reduce the problem of pest control quality.

This invention discloses a modified electrode, its preparation method, and its application. The modified electrode comprises a hexabenzo[a]methyl methacrylate (HMM) layer and a working electrode, wherein the HMM layer is loaded on the surface of the working electrode. The HMM-modified material is obtained by in-situ one-step deposition on the electrode surface using electrochemical polymerization technology, thereby improving the detection performance of imidacloprid and solving the problem of poor film-forming properties caused by the poor solubility of carbon materials.

The invention belongs to the field of pesticides, and relates to a pesticide composition and application, the pesticide composition comprises an active component A and an active component B, the active component A is any one of imidacloprid, dinotefuran and nitenpyram, the active component B is a compound of formula (I), and the mass ratio of the active component A to the active component B is 1: 64-60: 1. The pesticide composition disclosed by the invention has an excellent prevention and treatment effect on hemiptera pests, has a remarkable synergistic effect under a certain mass ratio, can delay the generation of drug resistance of the pests, and is safe to the environment.

The application discloses a DNA tetrahedron space-mediated immunoassay method and application thereof in detection of imidacloprid residues, relates to the field of pesticide detection, and realizes spatial ordered arrangement of target antibodies by regulating the spatial density of target antibodies through coupling target antibodies on magnetic beads in the form of DNA tetrahedrons, so that a detection probe of MB@TDN@Ab is formed, trace detection of a to-be-detected substance can be realized, and high sensitivity and accuracy are achieved. Compared with a traditional magnetic separation immunoassay method, the detection sensitivity of the application is improved by about 2 times, and the linear range is improved by 1 order of magnitude. When the application is applied to detection of pesticides such as imidacloprid, it has important significance for guaranteeing food safety.

This invention belongs to the field of microbial remediation technology, specifically relating to a highly adaptable imidacloprid-degrading bacterial community and its enrichment and domestication method and application. The enrichment and domestication method of this invention includes the following steps: (1) placing imidacloprid-contaminated soil in an inorganic salt liquid culture medium containing imidacloprid for cultivation to obtain a primary suspension; (2) centrifuging the primary suspension to separate the solid and liquid, allowing the bacterial community and non-dissolved soil components in the primary suspension to enter the precipitate; adding fresh inorganic salt liquid culture medium containing imidacloprid to the precipitate for cultivation to obtain a secondary suspension; (3) performing subculture according to the culture conditions of step (2), taking the last generation suspension of the last subculture cycle, allowing it to stand, and obtaining a bacterial supernatant; (4) centrifuging the bacterial supernatant obtained in step (3) to obtain a highly adaptable imidacloprid-degrading bacterial community. The imidacloprid-degrading bacterial community obtained by enrichment and domestication in this invention has better environmental adaptability to complex soil conditions.

The utility model discloses an imidacloprid raw medicine synthesis device, relates to the technical field of medicine production equipment, and comprises a base and a stirring kettle, a stirring component is arranged in the stirring kettle, a sealing cover is arranged on the top surface of the stirring kettle, a feeding hole is formed in the top surface of the sealing cover, a controller is fixedly arranged on the side wall of the stirring kettle, and the controller is connected with the stirring kettle. A temperature control mechanism is arranged in the stirring kettle, and the temperature control mechanism which is integrated in the stirring kettle and is internally provided with a movable temperature sensor is arranged, so that the fixing frame, the flow guide groove, the heating plates and the cooling plates which are alternately arranged, and the reciprocating motion detection assembly driven by the driving motor are matched with one another. Continuous scanning monitoring and independent precise regulation and control of the temperatures of the reaction materials in different intervals in the vertical direction are achieved.

The utility model belongs to the technical field of imidacloprid desolventizing, and discloses an imidacloprid desolventizing device with helical ribbon type stirring, which comprises a desolventizing kettle and a temperature control component, the desolventizing condition in the desolventizing kettle can be conveniently monitored in real time, a case is arranged at the top end in the desolventizing kettle, a pair of helical ribbon stirring rods is rotationally arranged at the bottom end of the case through a bearing seat, and the helical ribbon stirring rods are connected with the temperature control component. A driving assembly is installed in the case, a sampling pipeline is installed on one side of the desolventizing kettle, a corrugated pipe is installed at the end, located in the desolventizing kettle, of the sampling pipeline, a water inlet is formed in the bottom end of the corrugated pipe, and an infusion pump is installed at one end of the sampling pipeline and installed on one side of the desolventizing kettle through an installation plate. According to the imidacloprid desolventizing device, through the arrangement of the pair of helical ribbon stirring rods, the convection and mixing effects of materials in the desolventizing kettle are improved, and in the desolventizing process, the temperature in the desolventizing kettle is monitored and adjusted in real time through the heating cabin and the temperature control assembly, so that the desolventizing efficiency and the desolventizing effect of the imidacloprid desolventizing device are improved.

The invention discloses a compound insecticide for controlling termites. The insecticide comprises thiotraniliprole and imidacloprid, and the weight ratio of the thiotraniliprole to the imidacloprid is (15: 1)-(1: 15). The co-toxicity coefficients of the thiotraniliprole and the imidacloprid in different compounding proportions are measured through a system, and the co-toxicity coefficients are gt when the weight ratio of the thiotraniliprole to the imidacloprid is (1: 3)-(1: 15); 120, the obvious synergism is shown; meanwhile, two living body indexes including the survival rate and the virus transmission efficiency of the termites are combined for verification, and it is further confirmed that the ratio interval has the fastest lethal speed on the termites and the strongest group virus transmission capacity. Therefore, the invention not only screens out an optimal synergistic ratio range with high efficiency and low dosage, but also provides a quantifiable and generalizable termite compound insecticide scheme, overcomes the defects of high resistance and short lasting effect of a single agent, and lays a technical foundation for green prevention and control and production application of termites.

The invention discloses a method for removing refractory organic pollutants by activating PDS with an electrically loaded non-metal-based catalyst, which comprises the following steps: adding PDS and lignin-based biochar into wastewater containing refractory organic pollutants, and then applying a certain small amount of current to effectively remove organic pollutants in water. PDS is activated through the synergistic effect of an electric field and biochar, organic active components in the pyrolytic lignin-based biochar and the electric field jointly activate the PDS, the PDS is converted into SO4.-and. OH with strong oxidizing property, and therefore organic matter such as imidacloprid which is toxic, complex in structure and difficult to biochemically degrade in sewage is effectively oxidized. The content of organic matters remained in water by the added biochar is relatively low, and meanwhile, the biochar is relatively low in cost and wide in source, so that the cost consumption is relatively low.

The present application relates to a seed coating agent for controlling rape root rot disease in the mode of straw returning and mulching planting, and belongs to the field of rape root rot disease control. The seed coating agent for controlling rape root rot disease in the mode of mulching planting comprises, by weight, 1-5 parts of cyazofamid, 1-3 parts of prochloraz, 6-10 parts of humic acid, 80-100 parts of an auxiliary agent, 0.2-1 parts of a soluble calcium salt, 0.1-0.5 parts of a water-soluble boron compound, and 1-3 parts of imidacloprid. The present application is suitable for controlling rape root rot disease in a shady and humid environment in the mode of straw returning and mulching planting, and can also inhibit weed growth, promote seedling growth, enable the seedlings to grow rapidly and break through the mulch, and increase yield.

The utility model relates to the field of imidacloprid production, and discloses a desolventizing kettle for imidacloprid production, the desolventizing kettle comprises a desolventizing kettle body and two sliding rails, a motor is fixedly installed at the top of the desolventizing kettle body, the output end of the motor is fixedly connected with a stirring frame, the surface of the stirring frame is rotatably connected with the inner wall of the desolventizing kettle body, and the two sliding rails are fixedly connected with the stirring frame. An adjusting block is slidably mounted on the surface of the sliding rail, one end of the adjusting block is fixedly connected with a cleaning box, a plurality of drainage holes are formed in the inner wall of the cleaning box, and the center of the motor and the center of the stirring frame are located on the same straight line; according to the desolventizing kettle, the cleaning box is mounted on the surface of the stirring frame by virtue of the sliding rail and the adjusting block, and a plurality of drainage holes are formed in the inner wall of the cleaning box, so that the cleaning box is driven to rotate in the desolventizing kettle body by virtue of the stirring frame, and foams on the surface of a processing material in the desolventizing kettle body are collected and removed; the solvent entering the cleaning box is discharged from the drain hole, so that the influence on the use effect of the desolventizing kettle due to excessive foam is avoided.

The application discloses rape flower period one promotes four prevents multifunctional foliar fertilizer and a preparation method and application thereof, and the preparation method comprises the following steps: firstly, preparing citric acid-glycine copolymer through polycondensation reaction of citric acid and glycine, and preparing polyaspartic acid-caprolactam copolymer through ring-opening copolymerization reaction of polyaspartic acid and caprolactam; secondly, mixing quick-acting chelated boron and non-ionic surfactant, and mixing long-acting chelated boron and anionic dispersant to form dispersion liquids at 40-50 DEG C, mixing the dispersion liquids in proportion, and adding polyethylene glycol to obtain composite chelated boron; finally, mixing base nutrient components, bacillus subtilis, imidacloprid and the composite chelated boron in sequence, adjusting the pH value to 6-7, and filtering the mixture through a 200-300 mesh filter screen to obtain the finished product. The quick-acting chelated boron formed by the citric acid-glycine copolymer realizes rapid boron absorption, and the long-acting chelated boron formed by the polyaspartic acid-caprolactam copolymer realizes long-acting supply, so that the continuous supply of boron during the flowering period is ensured.

The present invention relates to process for preparation of Form I polymorph of 1-[(6-chloro-3-pyridyl) methyl]-N-nitroimidazolidin-2-ylideneamine (imidacloprid). In particular the present invention relates to process for preparation of Form I of imidacloprid containing dimer impurity≤0.5%.

The invention provides a preparation method of imidacloprid. The preparation method comprises the following steps: S1, mixing N-nitroimino imidazolidine, water and a phase transfer catalyst, heating and dissolving to obtain a first reaction system; and S2, dropwise adding liquid 2-chloro-5-chloromethylpyridine into the first reaction system, and synchronously introducing ammonia gas for reaction to obtain a product system. Ammonia water generated by ammonia dissolution is used as an acid-binding agent, ammonium chloride is formed after subsequent reaction and can be treated as a nitrogen fertilizer after simple separation, and the situation that salt formed by using other acid-binding agents in a traditional process is difficult to treat is avoided. Meanwhile, according to the preparation method, the characteristic of low solubility of imidacloprid in water is fully utilized, and water is adopted as a solvent, so that imidacloprid formed by reaction can be separated out of a liquid phase system in a solid state, the formation of disubstituted impurities is effectively reduced, and the selectivity of imidacloprid is improved.

This invention provides a wettable powder of imidacloprid, the raw materials for which include: imidacloprid, a wetting and dispersing agent, a filler, and other additives, wherein the imidacloprid content is 15-25 wt%. The wetting and dispersing agent includes anionic, nonionic, and inorganic dispersants. The filler includes one or more of silica powder, quartz powder, clay, calcium oxalate, mica powder, carbon black, calcium sulfate, and alumina. This invention provides a wettable powder with excellent suspension and wettability.

The invention relates to the technical field of biology and the technical field of food safety detection, and particularly discloses a nucleic acid aptamer aiming at insecticide imidacloprid, a derivative of the nucleic acid aptamer and application of the nucleic acid aptamer. The nucleic acid aptamer has a DNA sequence as shown in SEQ ID NO: 1, and covers variants of which the homology is greater than or equal to 90%, chemically modified derivatives, and locked nucleic acid, peptide nucleic acid or thiophosphate nucleic acid formed by skeleton modification. The aptamer has high specificity and high affinity to imidacloprid, is suitable for the fields of agricultural product residue detection, environmental monitoring, biosensor construction and the like, and is especially suitable for rapid and on-site screening of imidacloprid. The aptamer has the advantages of being simple and convenient to synthesize, low in cost, good in stability, easy to modify and the like, can be used for preparing a detection probe, and is adaptive to various sensing platforms such as color comparison, fluorescence, electrochemistry and the like.

The invention discloses an imidacloprid high-sensitivity rapid electrical analysis detection method based on a carbon nanosensor, and relates to the field of chemical analysis. The preparation method comprises the following steps: firstly, mixing a carbon nanotube and hexa [(trimethylsilyl) ethynyl] benzene in N, N-dimethylformamide, and continuously stirring; then adding CuCl, heating in a reaction kettle at 60 DEG C for 24 hours, filtering, washing and drying to obtain carbon nanotube-graphdiyne; dispersing the carbon nanotube at graphdiyne in ultrapure water, performing uniform ultrasonic treatment to obtain a suspension liquid, dropwise adding the suspension liquid to the surface of a polished glassy carbon electrode, and drying to obtain a modified electrode material, namely the carbon nanotube at graphdiyne / glassy carbon electrode; and preparing a to-be-detected solution containing a to-be-detected substance imidacloprid, finally inserting the modified electrode substance carbon nanotube and graphdiyne / glassy carbon electrode into the to-be-detected solution, and carrying out concentration determination by adopting a differential pulse voltammetry. According to the invention, rapid and high-sensitivity detection of imidacloprid is finally realized through preparation of the carbon nanotube-graphdiyne material, electrode modification and electrochemical determination in sequence.