75 results about "Omethoate" patented technology

The invention provides a detection method for omethoate on the basis of a CsPbBr3 perovskite quantum dot-molecular imprinting fluorescence sensor. The detection method comprises the following steps: S1: preparing the CsPbBr3 perovskite quantum dot-molecular imprinting fluorescence sensor; S2, drawing a standard work curve of fluorescence quenching intensity-omethoate concentration, and working outa working equation; S3, measuring the content of omethoate in a sample. The detection method provided by the invention achieves high selectivity and high sensitivity detection to the omethoate by using an APTES (aminopropyltriethoxysilane) blocked CsPbBr3 quantum dot as a signal element, and then wrapping with the CsPbBr3 perovskite quantum dot-molecular imprinting fluorescence sensor with a sensitive omethoate recognition function on a molecularly imprinted polymer layer. The detection method provided by the invention has a linear detection range of 50-400 ng / mL, a linearly dependent coefficient of 0.997, a limit of detection of 18.8ng / mL and relative standard deviation of 1.7 percent (RSD).

The invention discloses a pesticide. The pesticide comprises, by weight, 20 to 30 parts of omethoate, 10 to 15 parts of esbiothrin, 30 to 40 parts of imidacloprid and 1000 parts of water. The invention has the following beneficial effects: since materials used in the invention are cheap, the pesticide has low production cost; and the pesticide has a good insecticidal effect and is suitable for large-scale popularization and application.

The present invention relates to pesticide technology, and is recombinant acetylcholinesterase and its preparation process and usage in detecting pesticide residue. Recombinant acetylcholinesterase may be dissolved in buffering sodium phosphate solution and after being maintained at 4 deg.c for 22 days, it has 75 % of its initial enzyme activity maintained. It has inhibiting constant on DDVP, omethoate, paraoxon, methyl paraoxon, aldicarb, carbaryl, carbofuran and aphox of 4.4E6, 2.2E4, 1.1E6, 4.2E5, 4.8E4, 5.9E5, 5.1E6 and 2.3E5 separately. It is prepared through selecting seed, shaking cultivation, centrifuging, filtering, depositing, leaching, stirring, dialyzing and freeze drying, and is maintained at -20 deg.c. The detection process includes preparing reagent, treating sample, detecting sample, blank testing, testing sample, and final calculating. The recombinant acetylcholinesterase has obvious sensitivity on organophosphorus pesticide and carbamate chemicals and may be used in detecting pesticide residue.

The invention relates to a pesticide, and particularly relates to a pesticide for prevention of plant hopper and boring insect and other injurious insects. The pesticide is characterized by comprising the following components in parts by weight: 10 parts of salicylic acid, 10 parts of stearic acid, 15 parts of omethoate, 15 parts of toluene, 10 parts of triazophos, 10 parts of sodium alkyl benzene sulfonate, 10 parts of bentonite and 10 parts of castor oil polyester vinyl ether, and the pesticide is safe and efficient, strong in permeability, little in pollution and strong in wide spectrum property.

The invention discloses a special insecticide special for piercing-sucking mouthpart insects and a preparation method for the insecticide. The insecticide consists of the following components in parts by mass: 20 to 30 parts of dichlorvos, 18 to 21 parts of omethoate, 15 to 17 parts of fenitrothion, 10 to 13 parts of decis, 11 to 12 parts of supracide, 7 to 9 parts of dicofol, 8 to 10 parts of anaphicide, 5 to 7 parts of dithane, 3 to 5 parts of octyl mercaptan, 5 to 8 parts of imidacloprid, 3 to 5 parts of Lvling, 5 to 7 parts of pymetrozine, 1 to 3 parts of java paecilomyces, 2 to 4 parts of beta-cypermethrin and 20 to 30 parts of water. The special insecticide for the piercing-sucking mouthpart insects has good stomach poisoning and contact effects, superstrong uptake and translocation performance and stable, persistent and high efficacy.

The invention relates to an osier foliar fertilizer. The osier foliar fertilizer consists of the following components: urea, sodium molybdate, copper sulfate, manganese chloride, zinc sulfate, sodium borate, triadimefon, omethoate, magnesium chloride, humic acid, lauryl sodium sulfate and a chelating agent. The osier foliar fertilizer disclosed by the invention can be used for providing microelements for the growth of osiers, also preventing plant diseases and insect pests of the osiers and increasing the fertilizer absorptivity of leaf surfaces.

The invention discloses a method for rapidly identifying recessively added forbidden and limited pesticides in a fertilizer. The method comprises forbidden pesticide methamidophos and limited pesticide omethoate. The method comprises the following steps: weighing a solid fertilizer or a liquid fertilizer, dissolving with ultrapure water, adding acetonitrile and sodium chloride, violently mixing, standing for layering, and taking supernate; carrying out sample application on the supernate on a thin-layer plate by using a capillary tube, developing by using petroleum ether, dichloromethane and methanol, and developing by using palladium chloride; rapid identification can be carried out according to Rf values and color development of methamidophos and omethoate, the color development time of methamidophos is 2 min, the color shows deep yellow, and Rf is 0.36; the color development time of omethoate is 10 min, the color is light yellow green, and Rf is 0.41. The identification method disclosed by the invention is simple and convenient to operate, does not need large-scale pretreatment equipment, is used for on-site rapid detection of solid fertilizers or liquid fertilizers, and can rapidly identify two forbidden and limited pesticides, namely methamidophos and omethoate, which are recessively added into the fertilizers only by judging color development and Rf values with naked eyes.

The invention discloses an environment-friendly insecticide composition, which is prepared from the following raw materials in parts by weight: 3 to 8 parts of Chinese herbal medicine extraction liquid, 0.3 to 0.7 part of trichloroisocyanuric acid, 2 to 6 parts of pyrethrum, 0.1 to 0.5 part of lysine, 0.1 to 0.4 part of fructus cnidii, 2 to 7 parts of pepper powder, 0.3 to 0.6 part of edetic acid,2 to 6 parts of abamectin, 3 to 7 parts of ligusticum oil, 0.3 to 0.8 part of edetic acid, 3 to 7 parts of edible plant oil, 4 to 8 parts of herba patriniae, 3 to 8 parts of herba celastri angulati,2 to 7 parts of garlic powder, 3 to 9 parts of aspirin, 2 to 7 parts of emulsifiers, 0.3 to 0.7 part of triphenyl phosphate, 0.2 to 0.6 part of cypermethrin, 0.3 to 0.8 part of crotin, 2 to 6 parts offolium eucalypti robustae, 0.2 to 0.5 part of acephate, 0.3 to 0.6 part of glycerol, 0.3 to 0.7 part of tobacco leftovers, 2 to 6 parts of omethoate, 0.3 to 0.7 part of agritol, 0.3 to 0.7 part of potassium chloride and 0.3 to 0.7 part of ethanol ethyl ester. The environment-friendly insecticide composition uses traditional Chinese medicine as major raw materials; the characteristics of no medicine damage, no residue and no environment pollution are realized; the advantages of high killing effect on pest, high safety and the like are realized.