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120 results about "Carbaryl" patented technology

Carbaryl (1-naphthyl methylcarbamate) is a chemical in the carbamate family used chiefly as an insecticide. It is a white crystalline solid commonly sold under the brand name Sevin, a trademark of the Bayer Company. Union Carbide discovered carbaryl and introduced it commercially in 1958. Bayer purchased Aventis CropScience in 2002, a company that included Union Carbide pesticide operations. It remains the third-most-used insecticide in the United States for home gardens, commercial agriculture, and forestry and rangeland protection. About 11 million kilograms were applied to U.S. farm crops in 1976. As a veterinary drug, it is known as carbaril (INN).

Composition, method of making, and treatment of wood with an injectable wood preservative slurry having biocidal particles

A method of preserving wood includes injecting into the wood an effective amount of a aqueous wood-injectable biocidal slurry, said a wood-injectable biocidal slurry containing dispersants and sub-micron biocidal particles selected from at least one of the following classes: 1) a plurality of particles containing at least 25% by weight of a solid phase of sparingly soluble salts selected from copper salts, nickel salts, tin salts, and/or zinc salts; 2) a plurality of particles containing at least 25% by weight of a solid phase of sparingly soluble metal hydroxides selected from copper hydroxide, nickel hydroxide, tin hydroxide, and/or zinc hydroxide; 3) a plurality of particles containing at least 25% by weight of a solid phase comprising a substantially-insoluble organic biocide selected from triazoles, chlorothalonil, iodo-propynyl butyl carbamate, copper-8-quinolate, fipronil, imidacloprid, bifenthrin, carbaryl, strobulurins, and indoxacarb; 4) a plurality of particles containing on the outer surface thereof a substantially-insoluble organic biocide; 5) a plurality of particles containing a solid phase of a biocidal, partially or fully glassified composition comprising at least one of Zn, B, Cu, and P. The particles may advantageously contain metallic copper, a leachability barrier, pigments, dyes, or other adjuvants disposed on the outer surface thereof.
Owner:OSMOSE

Preparation of graphene/enzyme electrochemical biosensor and detection on organophosphorus pesticide residue

The invention provides a method including the steps of preparing graphene oxide through improved hummers method, modifying a graphene oxide (GO) / chitosan (CS) mixed solution onto surface of a glass carbon electrode (GCE), modifying acetylcholin esterase (AChE) onto the surface of the GCE having a GO-CS mixture film to form a graphene oxide-chitosan-acetylcholin esterase / glass carbon electrode (GO-CS-AChE / GCE), thereby constructing a graphene / enzyme electrochemical biosensor for detecting organophosphorus pesticides. The graphene / enzyme electrochemical biosensor is used for detecting carbaryl and trichlorphon, of which linear ranges are respectively 10-100 nmol / L and 10-60 nmol / L and correlation coefficients are respectively 0.993 and 0.994. Calculation proves that detection limits of the both pesticides are 3.3 nmol / L (wherein the detection limit is 1 / 3 of a minimum detection concentration). The graphene / enzyme electrochemical biosensor is high in sensitivity, is simple in preparation and is convenient to operate. The electrochemical biosensor can be applied in detection of organophosphorus pesticides and has potential in detection of the organophosphorus pesticides.
Owner:GUANGDONG OCEAN UNIVERSITY

ELISA (enzyme-linked immuno sorbent assay) detection kit for analyzing residual carbaryl and application thereof

The invention provides an ELISA (enzyme-linked immuno sorbent assay) detection kit for analyzing residual carbaryl, which comprises a kit body, a dismountable ELISA plate arranged in the kit body and a reagent arranged in the kit body, wherein every hole of the ELISA plate is coated with carbaryl coating antigen, the reagent comprises an anti-carbaryl nano antibody, a carbaryl standard solution, a second antibody of an enzyme marker, a buffer solution PBS, a scrubbing solution PBST, substrate liquid, a developing solution, a reaction stop solution and the like. In the detection process, the coating antigen adsorbed on a hole wall of the ELISA plate and the carbaryl to be detected compete with each other to react with the antibody, and the competitive result is shown through chromogenic reaction. By detecting the carbaryl with known concentration, and drawing a standard curve, the concentration of carbaryl to be detected can be calculated. The ELISA detection kit provided by the invention has the advantages that the residual carbaryl in water, soil and vegetables can be accurately and sensitively detected, the pretreatment process of a sample is simple and consumes short time, a large quantity of samples can be detected simultaneously, and the sample detection cost is far lower than that of a traditional instrument detection method.
Owner:CHINA AGRI UNIV

Liquid chromatography-tandem mass spectrometry method for measuring 18 semi-volatile organic pollutants in water

The invention discloses a liquid chromatography-tandem mass spectrometry method for measuring 18 semi-volatile organic pollutants in water. According to the method, a clean water sample such as surface water, drinking water, and the like is simply filtered by a 0.22 [mu]m micro-porous filter membrane, and then a liquid chromatography-mass spectrometry instrument is used to separate and detect the following 18 compounds in water: aniline, benzidine, acrylamide, picric acid, carbaryl, deltamethrin, microcystic toxin-LR, dibutyl phthalate, bis(2-ethylhexyl) phthalate, dichlorvos, trichlorphon, parathion, methyl parathion, malathion, dimethoate, demeton, atrazine, and carbofuran. The provided method can detect many target substances. The detection range of the method is 0.001 to 0.49 [mu]g / L, the relative standard deviation is 0.7 to 15.4%; and the analysis method has the advantages of high sensitivity, quick analysis speed, little pollution, and simple and efficient pretreatment, is especially suitable for standard analysis of drinking water source monitoring, and solves the problems of bad conformability, large labor strength, and low analysis efficiency of the conventional standard method.
Owner:广西壮族自治区环境监测中心站

Biosensor based on platinum/silicon carbide nano material and application thereof

ActiveCN107091872AImprove electrocatalytic activityExcellent biocompatibility and chemical stabilityMaterial electrochemical variablesElectrochemical biosensorEthanol
The invention relates to a biosensor based on a platinum/silicon carbide nano material and application thereof and belongs to the technical field of electrochemical detection. A preparation method of the biosensor comprises the following steps: firstly taking SiC, Glucost, ethanol, APTES, H2PtCl6, EDTA, NaOH, NaBH4, pyridine and sodium citrate as starting raw materials, and respectively preparing an SiC-NH2 nano material through a hydrothermal method and preparing a PtNp@SiC-NH2 nano composite material through a normal-temperature reduction method; and secondly immobilizing acetylcholinesterase (AChE) on the surface of a PtNP@SiC-NH2 modified glass carbon electrode through physical absorption by using chitosan (CS)-immobilized acetylcholinesterase to build an electrochemical biosensor. The sensor is applied to detection of methyl parathion pesticides and carbaryl pesticides. The biosensor provided by the invention has the following beneficial effects: through the technology with combination of electrochemistry and enzyme sensing, the high-sensitivity detection of two pesticides comprising methyl parathion and carbaryl can be successfully achieved; the biosensor is simple in detection method, low in sample consumption, rapid in response, high in sensitivity and good in stability.
Owner:云南省产品质量监督检验研究院

Flower-thinning agent of apple tree and flower-thinning treatment method

InactiveCN104970030AAddressing Excessive BloomingIncrease in sizeBiocidePlant growth regulatorsCalcium formateThinning
The invention discloses a flower-thinning agent of apple trees, wherein the flower-thinning agent is a mixed aqueous solution prepared from calcium formate and carbaryl. The mass concentration of the calcium formate is 5-10 g/L and the mass concentration of the carbaryl is 0.5-1 g/L. The invention also discloses a flower-thinning treatment method which includes the steps of: (a) preparation of the flower-thinning agent: preparing the mixed aqueous solution from the calcium formate and the carbaryl according to the mass concentration of the calcium formate being 5-10 g/L and the mass concentration of the carbaryl being 0.5-1 g/L; (b) spraying of the flower-thinning agent onto apple trees: after 5-10 days of the full-blossom period of the apple trees, spraying the flower-thinning agent onto the apple trees requiring flower-thinning treatment; and (c) assistant fruit dropping: after 10-12 days after the flower-thinning agent is sprayed, shaking the apple trees manually and thinning the flower with fruit thinning shears. By means of the flower-thinning agent for flower thinning with assistant fruit dropping in the manners of manual shaking and fruit thinning with fruit thinning shears, the problem of excessive blossom of the apple trees is solved. The flower-thinning agent can increase fruit size, can improve the quality of fruits and can prevent the phenomenon of harvest/poor harvest by years.
Owner:周凌云

Preparation method of carbaryl molecular imprinting composite membrane

The invention relates to molecular imprinting composite membranes, in particular a preparation method of a carbaryl molecular imprinting composite membrane. The preparation method comprises the following steps of: using a polyvinylidene fluoride microporous membrane as a supporting membrane; coating an initiator on the membrane; immerging the membrane into a dichlormethane homogeneous system containing template carbaryl, functional monomer 4-vinylpyridine and cross-linking agent ethylene glycol dimethacrylate; initiating polymerization under ultraviolet rays; and then obtaining the carbaryl molecular imprinting composite membrane by an eluting template. With acetonitrile as an eluting agent and acetic acid-methanol as an eluant, the imprinting membrane prepared by the preparation method provided by the invention can be used for achieving solid-phase extraction of residual carbaryl in a vegetable sample solution; and it is shown by adding standard recovery of a blank sample that the membrane obtains very good enriching and separating ability for the residual carbaryl in the sample. According to the invention, the prepared molecular imprinting composite membrane can be reused and has the advantages of low preparation and use cost, simple sample pretreatment step as well as good separating and enriching effect.
Owner:JIANGSU UNIV

Ionic liquid regulation-control bio-enzyme, method for degrading environmental hormone carbaryl by same, and method for determining degradation rate

The invention relates to an ionic liquid regulation-control bio-enzyme, a method for degrading environmental hormone carbaryl by the same, and a method for determining the degradation rate. The ionic liquid regulation-control bio-enzyme comprises the mixed solution formed by adding chloroperoxidase, quaternary ammonium salt ionic liquids and H2O2 in a phosphate buffer solution with a pH value of 2-5, wherein in the mixed solution, the concentration of chloroperoxidase is 0.005-0.05mu mol.L<-1>, the concentration of ammonium salt ionic liquids is 0.06-0.20mol.L<-1>, and the concentration of H2O2 is 0.05-0.5mmol.L<-1>. According to the ionic liquid regulation-control bio-enzyme, the method for degrading environmental hormone carbaryl by the same, and the method for determining the degradation rate disclosed by the invention, the chloroperoxidase is used as a biocatalyst, the ammonium salt ionic liquids are used as regulation-control factors, the ammonium salt ionic liquids have a cosolvent effect on the chloroperoxidase, and can be used for improving the stability of the chloroperoxidase, increasing the enzyme catalysis speed and increasing the effective utilization rate of the chloroperoxidase; the ionic liquid regulation-control bio-enzyme is capable of effectively improving the solubility of carbaryl and increasing the degradation rate in case of being applied to degradation for carbaryl.
Owner:SHAANXI NORMAL UNIV

Preparation of pesticide-carbaryl molecular-imprinting bionic rapid-detection test strip and application thereof

The invention belongs to the molecular-imprinting technology, and discloses preparation of a pesticide-carbaryl molecular-imprinting bionic rapid-detection test strip and an application thereof. Whatman NO.5 filter paper serves as a solid phase carrier, and silanization is carried out on the surface of the Whatman NO.5 filter paper to introduce double bonds; carbaryl, methacrylic acid, ethylene glycol dimethacrylate and azodiisobutyronitrile are dissolved into chloroform, the pretreated carrier is added, triggering is carried out in a water bath, and a molecular imprinting layer of the carbaryl is formed on the filter paper fiber carrier in a polymerization mode; the biological antibody and antigen and enzyme-labeled-antigen competitiveness immunoassay conjugation reaction principle is simulated, a carbaryl enzyme-labeled antigen serves as a reaction marker to compete with the carbaryl for binding with an imprinting hole locus of a carbaryl molecularly imprinted polymer, and after a substrate is added for displaying, the content of the carbaryl in a sample is qualitatively detected by judging changes in color in the paper. Compared with a biological antibody rapid-detection test strip, production cost is low, a detection method is simple, convenient and rapid, the detection result is obvious and visible, and the test strip is suitable for on-site rapid identification.
Owner:JIANGSU UNIV

Novel special peanut medical fertilizer containing phoxim and carbaryl

The invention belongs to the technical field of pesticide and in particular relates to one group of novel special peanut medical fertilizer which can be applied to production of peanuts, and also canbe used for promoting the growth of the peanuts and preventing and controlling underground insects of the peanuts. The special peanut medical fertilizer is prepared from two components including a pesticide compound preparation and a compound of chemical fertilizer and a plant growth regulator; the pesticide compound preparation is prepared from the following raw materials in percentage by weight:20.0 percent of phoxim, 20.0 percent of carbaryl, 8 percent of polyethylene glycol-600, 8.0 percent of emulsifier and 44.0 percent of filling carrier; the compound of the chemical fertilizer and theplant growth regulator is prepared from the following raw materials in percentage by weight: 43 percent of urea, 43 percent of potassium dihydrogen phosphate, 1 percent of sodium nitrophenolate, 1 percent of 4-iodophenoxyacetic acid, 6 percent of hymexazol, 2 percent of K12 (sodium lauryl sulfate) and diatomite which is supplemented until the total content is 100 percent. A preparation technologyof the composition is simple; all the added raw materials are transformed into a product, the yield is high and three wastes are not generated. The composition provided by the invention can be used for effectively improving the yield of the peanuts.
Owner:QINGDAO AGRI UNIV
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