40 results about "Neonicotine" patented technology

The invention belongs to the technical field of physiochemical detection of tea leaves and in particular relates to a method for determining alkaloids in tea leaves by using a GC-MS (Gas Chromatography-Mass Spectrometer) method. The method comprises the following step of determining nicotine and minor alkaloids (including nicotine, nornicotine, myosmine, neonicotine, neonicotine and cotinine) in tea leaf powder. The method is a method for extracting nicotine substances from the tea leaves by using a centrifugal tube filled with 0.01% triethylamine/tert-butyl methyl ether solution and analyzing the nicotine substances in the tea leaves by using a gas chromatography-mass spectrometer (GC-MS) method. When the method provided by the invention is used for detecting the content of the nicotine in the tea leaves, the method is rapid and effective, the pre-treatment is simple, an average relative standard deviation is smaller than 10 percent, and the average recycling rate of each index is 86.2 percent to 92.1 percent. The method has the advantages of rapidness and accuracy, high sensitivity and good repeatability.

The invention relates to an insecticidal composition in the field of pesticide compounding, comprising the effective components, namely sufoxaflor and neonicotine insecticides, wherein the weight percentage ratio of the two effective components is (1-80):(80-1), preferably (5-50):(60-5); the total mass percentage content of the effective components in the insecticidal composition is 1-90 percent, preferably 5-60 percent; and the rest in the insecticidal composition is auxiliary components which are allowed to be used and are acceptable in the pesticide. By adopting the known method, the insecticidal composition can be prepared into water emulsion, microemulsion, emulsifiable solution, suspending agent, wettable powder and water dispersible granules; and with the sufoxaflor and the neonicotine insecticides as the effective components, the insecticidal composition can be used for controlling plant louses, whiteflies, plant hoppers, scale insects, capsid bugs on cotton, cicada, spittlebug, leafhoppers, thorn bug, fulgora, psyllid and other homoptera pests.

The invention provides a chloroisothiazole neonicotine compound, as well as a preparation method and application thereof. The 3,4-dichloroisothiazole neonicotine compound has a chemical structural general formula as shown in a formula I. The formula is as shown in the specification. The invention further discloses a structure general formula, a synthesizing method of the compound, application of the compound as insecticides, bactericides and plant virucides, application of a composition of the compound, agriculturally acceptable auxiliary or synergist and commercial insecticide, bactericide, plant virucdies and acaricides in prevention and control of insect pests, diseases and virus diseases of agricultural, forestal and horticultural plants and a preparation method of the composition.

The invention relates to a pesticide combination, comprising a compound which consists of the neonicotine pesticide thiamethoxam and at least one pesticide selected from organophosphorus pesticides of pyridaphethione, malathion and phoxim; the compound can be processed into aqueous emulsion, water dispersible granule and suspension emulsion. The field experiment of the pesticide compound of the invention for treating different objects proves that the killing efficiency is high and the preventing and controlling scope is very wide, therefore, the invention can effectively prevent and control main pests such as rice borer, rice plant hopper, cotton aphid, apple aphid, diamond-back moth, European red mite, orange coccid, pieris rapae, bemisia tabaci and the like.

The invention discloses a method for simultaneously measuring residue amounts of various neonicotine type drugs in royal jelly and metabolites thereof. The method comprises the following steps of: (1)removing protein in a to-be-measured sample to obtain extract; (2) carrying out purification on the extract by adopting an absorbent to obtain purified solution, and after drying the purified solution, making up to volume with a loading solvent to obtain to-be-measured solution, wherein the absorbent is formed by mixing anhydrous magnesium sulfate, N-primary secondary amine and C18 powder in a mass ratio of 10:6:3; (3) drawing a standard curve; and (4) carrying out sample injection on the to-be-measured solution under a preset liquid chromatography tandem mass spectrometry condition, and according to the standard curve and a detection result of the to-be-measured solution, calculating content of the corresponding neonicotine type drugs or metabolites in the to-be-measured solution. According to the invention, a dispersive solid-phase extraction purification technology is adopted to carry out purification on the extract; the method is simple and convenient in step, easy to operate, green and friendly; purification only requires 5 to 10 minutes; extraction efficiency is high; cost of consumables is only 5 to 7 yuan each time; and cost is low.

The invention discloses an insect-killing composition containing guadipyr and a neonicotine pesticide. The active components of the composition comprise an active component A guadipyr and an active component B neonicotine pesticide that is any one or two of thiamethoxam, nitenpyram, acetamiprid, thiacloprid, imidaclothiz, clothianidin, dinotefuran and 1-[(6-Chloropyridin-3-yl)methyl]-7- methyl-8-nitro-5-propoxy-1,2,3,5,6,7-hexahydroimidazo [1,2-alpha] pyridine (Paichongding). The weight ratio of the active component A to the active component B is 50:1 to 1:50. The insect-killing composition can achieve higher insect-killing effect than each active component used separately, namely after the formulation, the obvious synergic effect is generated; the composition can effectively control piercing-sucking mouthpart pests, so that the pesticide usage amount and times can be reduced, furthermore the resistance of the pests to the composition can be delayed or conquered.

The invention discloses a sedaxane and neonicotine-containing composition for killing pests and preventing diseases. The composition for killing pests and preventing diseases contains effective ingredients, namely an active ingredient A and an active ingredient B, wherein the active ingredient A is sedaxane, the active ingredient B is any compound selected from imidacloprid, thiamethoxam, thiacloprid and clothianidin, and the weight ratio of the active ingredient A to the active ingredient B is (1: 100) to (80: 1). The composition disclosed by the invention has a synergistic effect on a variety of pests and diseases, which endanger agricultural production, so that the dosage of pesticides is reduced, the residual quantity of the pesticides on crops is reduced, the environmental pollution is alleviated, the composition is safe to human and livestock, the environmental compatibility is good, and the drug resistance for the pests and the diseases is difficult to generate.

The invention provides a method for measuring trace alkaloids and nitrosamines in oral tobacco products. The method includes the following steps that: a) oral tobacco products are sliced, and are added into to an extraction solvent and a deuterated isotope internal standard, extraction is performed with an accelerated solvent extraction method, an extract liquid is collected; b) the extract liquidand a QuECHERS reagent are subjected to vortex mixing for 1-3min, centrifuging is performed at a speed of 9000-11000 rpm for 3-7min, so that a supernate can be obtained; and c) a UPLC-HR-MS method isadopted to perform quantitative analysis on trace alkaloids and specific nitrosamines for the cigarettes in the supernate. With the method disclosed by the invention adopted, 6 trace alkaloids, namely, neonicotine, nornicotine, myosmine, cotinine, nicotelline and N-formyl nornicotine and four specific nitrosamines, namely NNN, NNK, NAT and NAB in the main stream smoke of cigarettes can be measured simultaneously. The method has the advantages of high sensitivity, high accuracy and high selectivity, and is suitable for the rapid determination of trace alkaloids and nitrosamines in batched gum-base oral tobacco products.

The invention discloses a pesticide composition with a synergistic effect, which comprises two active components with the weight portion ratio of between 1:100 and 100:1, wherein the first active component is selected from 3-bromo-N-[4-chloro-2-methyl-6-[amino carbonyl] phenyl]-1-(3-chloro-2-pyridyl)-1H-pyrazole-5-amide or N-oxide or a salt thereof; and the second active component is selected from any one of the following compounds with insecticidal activity: aryl pyrazoles, neonicotines, organic phosphoruses, carbamates, pyrethroids, benzoyl ureas, acylhydrazines, macrolide antibiotics, pyrroles, thioureas, Ryanicide receptor-ligands, mitochondrial electron transport inhibitors, nereistoxins, pyridalyls, indoxacarbs or Bacillus thuringiensis, or salts thereof.

The invention relates to the technical field of waterborne coatings, in particular to a coating for nursery stock, and specifically discloses a waterborne wood mothproof and fireproof coating. The waterborne wood mothproof and fireproof coating is prepared from the following raw materials in parts by weight: 45 to 60 parts of acrylic modified resin, 0.5 to 20 parts of calcium hydroxide, 1 to 20 parts of talcum powder, 0.5 to 8 parts of calcium carbonate, 3 to 10 parts of kaolin, 0.05 to 5 parts of a neonicotine insecticide, 0.05 to 0.3 part of an anti-sedimentation agent, 10 to 50 parts of a fire retardant, 0.05 to 5 parts of a dispersing agent, 2 to 3 parts of a coalescing agent, 0.1 to 0.5 part of a wetting agent, 0.05 to 5 parts of a defoaming agent, 0.1 to 1.2 parts of a thickening agent and 5 to 20 parts of water.

The invention discloses a method for quantitatively analyzing major trace alkaloids in main stream puff-by-puff smoke gas of a fine cigarette. The method comprises the following steps of (1) preparing an inner standard solution; (2) preparing a standard work solution; (3) preparing a sample solution; (4) performing gas chromatography-tandom mass spectrometer analysis; (5) drawing a standard work curve and calculating a sample result. The method has the following beneficial effects that (1) in the method, a gas chromatography-tandom mass spectrometer is creatively used for testing the three kinds of major trace alkaloids of myosmine, neonicotine, anatabine and the like in the main stream puff-by-puff smoke gas of the fine cigarette; the problems of low compound level in the puff-by-puff smoke gas of the fine cigarette and the influence of factors of serious analysis interference of smoke gas complicated substrates in target objects are solved; (2) the method creatively uses a pulse splitless analysis mode by aiming at the characteristics of low target object content in the puff-by-puff smoke gas of the fine cigarette; the response sensitivity of a target object is greatly improved.

The present invention discloses an insect disinfestation composition containing bromoantraniliprole and neonicotine. The insect disinfestation composition comprises an active component A and an active component B, wherein the active component A is selected from bromoantraniliprole, the component B is any one compound selected from thiamethoxam, thiacloprid, clothianidin and dinotefuran, and a weight ratio of the active component A to the active component B is 1:80-60:1. The composition can be provided for prevention and control of a plurality of pests, and has characteristics of significant synergy effect, insect killing spectrum expanding, pesticide consumption reduction, reduction of residual pesticide on crops, and environmental pollution reduction.

The invention belongs to a pesticide and discloses tetrahydropyridone 1,3-diazacyclo cis-neonicotine compounds shown in a general formula (I) as well as a preparation method and applications thereof. The preparation method comprises the following steps: using ethanol as solvent, and adding neonicotine compounds, aldehyde and Meldrum's acid; and adding piperidine used as a catalyst, and refluxing to react. In the method, a tetrahydropyridone structure is introduced in the neonicotine compounds for the first time. The tetrahydropyridone 1,3-diazacyclo cis-neonicotine compounds have the following advantages: the preparation process is simple, and the yield is high; the preparation process has no pollution; and the compounds have good insecticidal effects and are safe for human and livestock.

The invention discloses an anticancer aroma-enhancing filter composite for smoking, comprising the following substances in parts by mass: 2-3 parts of taxus, 0.5-1 part of zedoary, 0.5-1 part of jobs tears, 0.5-1 part of catharanthus roseus, 0.5-1 part of cephalotaxus fortune, 0.5-1 part of dysosma versipellis, 0.5-1 part of rabdosia rubescens, 0.5-1 part of meadow saffron, 0.5-1 part of camptotheca acuminata decne and 0.5-1 part of brucea javanica. Through the anticancer aroma-enhancing filter composite for smoking, provided by the invention, a lot of carcinogenic substances such as nicotine, neonicotine and the like in the smog generated by tobacco combustion can be reacted and neutralized; after a small quantity of carcinogenic substances are inhaled, as a lot of anticancer substances and substances for strengthening the immunity are inhaled, the harm to the human organs, caused by the carcinogenic substances, are greatly decreased, and the harm to the human body, caused by the smog, is minimized; and the original flavor of the tobacco is not destroyed by simply and largely adsorbing the smog, and meanwhile, a lot of plant spices are added, so that the anticancer aroma-enhancing filter composite for smoking has purer taste and can be accepted more easily.

The invention belongs to the field of pesticides and particularly relates to a mechanized-control spraying assistant for a neonicotine pesticides. The mechanized-control spraying assistant is prepared from an active ingredient carrier, glycerine, vegetable oil and a surfactant; and per 100 parts of the spraying assistant comprises 10-15 parts of active ingredient carrier, 5-10 parts of glycerine, 15-30 parts of surfactant and the balance of vegetable oil, wherein the surfactant is a non-ionic or anionic surfactant, and the active ingredient carrier is composed of a starch carrier, a saccharide carrier and an inorganic carrier. Through an improvement on the assistant, the nicotine pesticide capable of being applied to aerial spraying is obtained; and the product is high in solubility and high in drift resistance and is applicable to low-gallonage spraying of aviation and the like.

The invention relates to bicyclic neonicotine compounds constructed by cycloalkenone, and a preparation method and an application thereof, concretely provides compounds having a structure represented by formula (A) or optical isomers, cis-trans-isomers or pharmaceutically acceptable salts of the compounds, and a preparation method and a use thereof, and also relates to an agricultural composition containing the compounds or the optical isomers, cis-trans-isomers or pharmaceutically acceptable salts thereof, and a use thereof. The compounds have a high insecticidal activity against agriculture and forestry pests comprising homoptera pests, lepidoptera pests and the like, such as aphids, plant hoppers and whiteflies.

The invention relates to an insecticidal composition. The active component of the insecticidal composition is composed of (A) milbemycins and (B) at least one neonicotine compound. The weight ratio of the active component (A) to the active component (B) is 1:100-100:1. Compared with the activity of single components, the insecticidal composition has a prominently synergistic activity, when the weight ratio of the active component (A) to active component (B) is in the abovementioned range. The provided insecticidal composition is used to prevent and control pests, in particular, panonychus citri, tetranychus cinnabarinus, tetranychus urticae, psylla chinensis, bemisia tabaci, aphid, plutella xylostella, cnaphalocrocis medinalis, chilo suppressalis, and the like. The invention also provides a method of preventing or controlling the invasion of pests. According to the method, the active component (A) to active component (B) are sprayed on target useful plants or environment of target useful plants, target pests or environment of target pests, and target useful plant propagating materials in a random expected sequence or simultaneously.