223 results about "Dichlorophenoxyacetic acid" patented technology

Personal care composition comprising from about 0.05% to about 5% of at least one aquaporin-stimulating compound selected from the group consisting of xanthine, caffeine; 2-amino-6-methyl-mercaptopurine; 1-methyl xanthine; 2-aminopurine; theophylline; theobromine; adenine; adenosine; kinetin; p-chlorophenoxyacetic acid; 2,4-dichlorophenoxyacetic acid; indole-3-butyric acid; indole-3-acetic acid methyl ester; beta-naphthoxyacetic acid; 2,3,5-triiodobenzoic acid; adenine hemisulfate; n-benzyl-9-(2-tetrahydropyranyl)adenine; 1,3-diphenylurea; 1-phenyl-3-(1,2,3-thiadiazol-5-yl)urea; zeatin; indole-3-acetic acid; 6-benzylaminopurine; alpha-napthaleneacetic acid; 6-2-furoylaminopurine; green tea extract; white tea extract; menthol; tea tree oil; ginsenoside-RB1; ginsenoside-RB3; ginsenoside-RC; ginsenoside-RD; ginsenoside-RE; ginsenoside-RG1; ginseng root extract; ginseng flower extract; pomegranate extract, extracts from Ajuga turkestanica; extracts from viola tricolor and combinations thereof; an additional ingredient selected from the group consisting of niacinamide, glycerin and mixtures thereof, and a dermatologically-acceptable carrier.

The invention discloses a herbicide composite. The herbicide composite comprises topramezone used as a main material and an auxiliary material which contains one or more than one of atrazine, fluroxypyr, bentazone, dicamba, nicosulfuron, mesotrione, 2,4-dichlorophenoxyacetic acid, 2,4-dichlorophenoxyacetic acid butyl ester, 2,4-dichlorophenoxyacetic acid iso-octyl ester, terbuthylazine, MCPA-sodium, foramsulfuron and acetochlor. The herbicide composite is a novel herbicide composite with good weeding effect.

An herbicidal composition containing (a) aminopyralid and (b) 2,4-D provides synergistic control of selected broadleaf weeds.

The invention relates to a root accelerant for accelerating the growth of new roots for plant seeds, root system or cottage organs, which comprises plant growth regulator, macronutrient and minute quantity nutriment elements, wherein said plant growth regulator includes DPC, 1-naphthalene acetic acid, indoxylic butanoic acid, 6-benzyl amino leucon and 2,4-Dichlorophenoxyacetic acid. The invention also relates to the process and usage of the root accelerant.

The invention relates to a Pucaoke composition and use thereof. The Pucaoke composition includes a component A and a component B, wherein the component A is a compound shown as chemical formula (I) and all isomers or salts and hydrates thereof available for weeding; and the component B is at least one of 2-methyl-4-chlorphenoxyacetate, 2-methyl-4-chlorophenoxyacetic acid, 2-methyl-4-chloro-phenol ethyl thioester, MCPB, 2-methyl-4-chlorophenoxypropionic acid, 2-methyl-4-sodium chlophenoxycetate, isooctyl-2-methyl-4-chlorphenoxyacetate, butyl 2, 4- dichlorophenoxyacetate, isooctyl-2, 4-dichlorophenoxyacetate, 2, 4-dichlorophenoxyacetic acid, 4-(2, 4-dichlorophenoxy)propionic acid or salts or hydrates of the compounds. The composition provided by the invention is a low-cost, long-acting and broad-spectrum herbicide.

The invention discloses a photoelectric chemical analysis method adopting a molecular imprinting functionalization modified electrode, relates to a molecular imprinting technology-based preparation method of a high-selectivity TiO2NTs modified electrode, and also relates to a method for high-selectivity and high-sensitivity detection of endocrine disrupting chemicals especially such as 2,4-dichlorophenoxyacetic acid (2,4-D) having no electrochemical activity by the high-selectivity TiO2NTs modified electrode as a photo anode. Compared with the prior art, the molecular imprinting technology-based preparation method creatively utilizes a molecularly imprinted polymer in selective modification of a photoelectric sensing electrode so that selectivity and detection sensitivity of an electrode are improved greatly; the interference caused by multiple concomitant micro-molecules is eliminated; a magnitude of a detection limit reaches to 10<-8>mol / L<-1>; the molecular imprinting functionalization modified electrode is stable; and the photoelectric chemical analysis method for detection has good reappearance.

An herbicidal composition containing (a) aminopyralid and 2,4-D and (b) atrazine provides synergistic control of selected weeds in corn, sorghum, sugar cane and range and pasture.

Protoplasts which regenerate reproducibly in a short time to normal, fertile plants can be regenerated from an auxin-autotrophic genotype of Zea mays (L.). Starting from immature embryos on hormone-free media, an auxin-autotrophic, embryogenic callus is formed on the shoot basis of the seedlings, which callus retains its embryogenic potential over a substantial period of time when subcultured on hormone-free medium. In addition to fully-developed embryos, adventitious embryos are also formed under suitable culture conditions (6-9% of sucrose in the medium). When the sucrose content is reduced to 2-3% and 2,4-dichlorophenoxyacetic acid is added, soft, granular calli are formed which consist of embryogenic cell aggregates (type II callus). After subculturing the type II callus in the form of a cell suspension culture, totipotent protoplasts can be isolated. From these protoplasts, the maize plants according to the invention are regenerated.

The invention discloses a method for continuously producing herbicide 2,4-dichlorophenoxyacetic acid. According to the method, phenol and chlorine gas are used as raw materials; a continuous chlorination reaction is conducted through a micro-channel reactor to prepare 2,4-dichlorophenol, a condensation reaction is conducted through a tandem condensation reaction kettle to prepare 2,4-dichlorphenoxyacetic acid sodium salt, and then a continuous acidification reaction is conducted through a tandem acidification reaction kettle to prepare the 2,4-dichlorphenoxyacetic acid. Since continuous operation is realized in all the three reactions, the technological process is efficient, environmentally friendly, sustainable and suitable for industrial production; the method has the advantages that energy is saved, consumption is lowered, and emission of pollutants is reduced, and therefore safe and continuous industrial production is achieved.

The invention discloses a dopamine derivative, a molecular imprinted polymer and preparation methods and application thereof. The dopamine derivative comprises dansyl dopamine, carbazole sulfonyl dopamine and the like. The dopamine derivative is synthesized from a fluorescent color former precursor and dopamine through sulfonation reaction. The fluorescent molecular imprinted polymer is prepared by using the fluorescent dopamine derivative, integrates specific sample pretreatment and fluorescence detection and is linked with an ELISA (Enzyme-Linked Immuno Sorbent Assay) plate, so as to form a fluorescent sensor, and series acidic organic pollutants, including bisphenol A and 2,4-dichlorophenoxyacetic acid, in an environmental water sample are directly assayed according to the change of fluorescence quenching values before / after sample application.

The invention relates to the field of flower propagation methods, in particular to the field of corm flower propagation methods. A thin layer culture method of tulips comprises the following steps of: longitudinally or transversely cutting tulip scales into thin layers of 0.1-5mm, and laying the thin layers on a culture medium; and inducing and proliferating the culture medium into an MS (Murashige and Skoog) culture medium, wherein 1.0-2.0mg of 6-BA (Benzyl Aminopurine), 0.1-1.0mg of NAA (Naphthyl Acetic Acid), 1.0-4.0mg of 2, 4-D (2,4-Dichlorophenoxyacetic acid), 20g of cane sugar and 6g of agaragar are added to the MS culture medium per L, the culture condition is that the temperature is 23+ / - 2 DEG C, the illumination intensity is 1,500-2,000Lx, and the illumination time is for 16h / d. The thin layer culture method of the tulips has the advantages and active effects: the tissue culture bulb inductivity reaches 100%, induced tissue culture seedlings grow vigorously, the source of the tissue culture seedlings is not limited by seasons, and the tissue culture scales are the better source of thin layer culture materials. Cutting modes cause different inductions on bulbs, and the differentiation rate and the bulb induction number of the scales which are transversely cut are higher than those of the scales which are longitudinally cut.

The invention relates to a method for regenerating plant fromarundo donax linn callus. The method comprises the following steps of (1) inducing callus: inoculating arundo donax linn tissue into culture medium containing1.0-5.0mg / l of 2,4-D (2,4-dichlorophenoxyacetic acid), carrying out dark cultivation for 3 days after inoculating, and then cultivating under the condition that the light period is 16 hours of illumination and 8 hours of darkness, and the illumination intensity is 2000Lx; (2) succesive transfer culture of callus: inoculating the callus into the culture medium containing 5.0mg / l of 2,4-D; (3) regenerating the callus plant: taking MS culture medium as a basic culture medium, and adding 0.5mg / L of IBA (indolebutyric acid) and 5.0mg / L of 6-BA (6-benzylaminopurine); (4) sprouting cultivation; (5) rooting cultivation: inoculating the plant into the MS culture medium in which 0-0.5mg / L of NAA (naphthylacetic acid) is added to root after sprouting; and (6) transplanting. A method for regenerating the plant from arundo donax linn callus is built by the invention; and expanding propagation of excellent arundo donax linn is facilitated.

An in-vitro culture method for catalpa bungei comprises 1) inducing callus, concretely, putting catalpa bungei on a callus induction medium for inducing callus, wherein the callus induction medium is obtained by adding 6-benzyladenine (6-BA) and 2,4-dichlorophenoxyacetic acid (2,4-D) on the basis of 1 / 2 MS basal medium; 2) propagating callus, concretely putting callus on a propagation medium for propagation, wherein the propagation medium is obtained by adding 6-benzyladenine (6-BA) and alpha-naphthalene acetic acid (NAA) on the basis of 1 / 2 MS basal medium; 3) inducing embryonic callus and differentiating somatic embryo, concretely putting propagated callus on an induction differentiation medium, wherein the induction differentiation medium is obtained by adding 6-benzyladenine (6-BA) and alpha-naphthalene acetic acid (NAA) on the basis of 1 / 2 MS basal medium; and 4) regenerating a plant, concretely putting somatic embryo obtained through differentiation on a regeneration medium for inducing somatic embryo to germinate, so as to obtain a catalpa bungei regeneration plant. The method aims at expanding catalpa bungei propagation coefficient and providing conditions for germplasm preservation and genetic transformation.

A method for removing contaminants from fluids comprises contacting the fluid with an expanded material selected from popped corn, puffed rice and puffed wheat. The preferred expanded material is popped corn. The method is applicable to a wide range of organic and inorganic contaminants. Examples of contaminants include aromatic compounds such as polychlorinated biphenyls (PCBs), polychlorinated dibenzo furans (PCDFs), polychlorinated dibenzo dioxins (PCDDs), carbamates, sulphonamides, dichlorodiphenyltrichloroethane (DDT), 2,4-dichlorophenoxyacetic acid (2,4-D), other compounds such as carbon disulphide, ethylene glycol and pesticides. Other examples include inorganic compounds or organo-metallic compounds, e.g. those containing aluminum, antimony, barium, cadmium, cobalt, chromium, copper, iron, lead, mercury, molybdenum, nickel, silver, tin, titanium, vanadium and zinc.

The invention relates to the technology of inspection and quarantine, in particular to a method for simultaneously detecting various preservatives remaining in orange with a liquid chromatograph / mass spectrometer. The method is to adopt the QuEchERS purification technique, the ultra-high performance liquid chromatography and the electrospray tandem quadrupole mass spectrometry to detect the residuals, optimize analytical procedures and parameters, and study detection of the plurality of preservatives for retaining freshness of the orange with the qualitative method and the quantitative method, wherein the preservatives comprise carbendazim, thiabendazole, prochloraz, imazalil, thiophanate methyl, prochloraz and 2,4-D (2,4-dichlorophenoxyacetic Acid). Therefore, the detection technology which is high in sensitivity and accuracy, quick in detection and capable of simultaneously detecting the preservative residuals can be established.

The invention relates to a determination method for six residual plant-growth regulators in a bean sprout, especially to a method for simultaneous determination of six residual plant-growth regulators in the bean sprout by using gas chromatography-tandem mass spectrometry. Six plant-growth regulators involved in the invention are composed of 4-chlorophenoxyacetic acid, 2,4-dichlorophenoxyacetic acid, naphthylacetic acid, indoleacetic acid, 2,4-D-butyl ester and indolebutyric acid. The method comprises the following steps: 1) sample treatment; 2) determination, wherein gas chromatography-tandem mass spectrometry is employed; 3) drafting of a standard curve; 4) blank test; and 5) result calculation and description. The determination method employs gas chromatography-tandem mass spectrometry for simultaneous determination of the six residual plant-growth regulators in bean sprout; and the method is simple, convenient, rapid, accurate and reliable, and the lower determination limit, recovery rate and precision of the method all accord with requirements.

The invention discloses a synergic herbicide composition containing cyhalofop-butyl and 2,4-dichlorophenoxyacetic acid and application thereof. The herbicide composition comprises the cyhalofop-butyl and the 2,4-dichlorophenoxyacetic acid which serve as the main active ingredients, wherein the mass ratio of the cyhalofop-butyl to the 2,4-dichlorophenoxyacetic acid is 1-60:1-60. The synergic herbicide composition can be used for preparing herbicides for controlling post-emergence weeds in paddy field. Compared with single-composition herbicide, the herbicide composition has a broad herbicide spectrum and acts for a long time on the premise of improving the herbicide effect, is safe for the paddy fields and after-reap crops and particularly has obvious effect of controlling various gramineous weeds and broadleaf weeds in the paddy fields.

The invention discloses a method used for rapidly detecting 2,4-dichlorophenoxyacetic acid (2,4-D) residue in fruits and vegetables via surface enhanced Raman spectroscopy (SERS). According to the method, gold sol is prepared via reduction of chloroauric acid with trisodium citrate; a 2,4-D-containing solution to be detected is mixed with gold sol; a portable Raman spectrometer is adopted for Raman spectrum scanning so as to obtain the surface enhanced Raman spectrum of 2,4-D; the characteristic peaks of 2,4-D can be observed at 1159cm<-1>, 838 cm<-1>, 890 cm<-1>, 718 cm<-1>, 1256 cm<-1>, 1308 cm<-1>, 1445 cm<-1>, and 1591 cm<-1>, and the peak strength of the characteristic peak at 838 cm<-1> is used for quantitative determination of the content of 2,4-D. According to the method, SERS is adopted to develop the method used for rapid, accurate, portable, and simple detection of 2,4-D residue, and the method is suitable for food safety on-site real-time rapid screening.

A Chinese-medicinal cream for preventing and treating the rot of fruit tree is prepared from the 2,4-D(2,4-dichlorophenoxyacetic acid) as plant cell auxin (4-10 ppm) and 6 Chinese medicinal materials including oriental wormwood, phellodendron bark, flavescent sophora root, etc. Its advantages are high effect and no environmental pollution.

The invention provides a fresh lemon fruit preservative and a preservation method thereof. After harvested fresh lemon fruits are placed for 24 hours, the fresh lemon fruits are soaked in the preservative consisting of the following components: 0.5 to 1.2g / L of prochloraz technical, 20 to 30g / L of saleratus, 0.1 to 0.3g / L of 2,4-dichlorophenoxyaceticacid and the balance of water for 3 to 5 minutes to ensure that the whole fresh fruits are dipped with the preservative; and fishing the fresh fruits out, airing the fresh fruits, packaging the fresh fruits one by one by using a polyethylene fresh-keeping film, boxing the fresh fruits and storing at room temperature. The preservative can effectively inhibit the fresh lemon fruits from generating diseases in the storage period, avoids crossed infection, prolongs the storage period of the lemons furthest, and improve the quality of the fruits; meanwhile, the 2,4-dichlorophenoxyaceticacid in the preservative can be degraded along with the time, and after the fruits are stored for 20 days, the residue concentration can be lower than a residue limit; the fresh fruits can be preserved at room temperature, and the preservative is simple and practical, and has low cost and good preservative effect; and when the fresh lemon fruits are stored for 5 months, the hardness of fruits is good, the ends of fruits are perfect, and the good fruit rate can reach over 98 percent.

The invention is a high-content camptothecin callus cultivating method of camptotheca acuminata, its steps including: (1) prepare outer plant body; (2) induce the callus; cut the happy-tree laminae into blocks of 0.5X0.5-1.0 cm2, and the leafstalk cut into 0.5-1.0 cm segments inserted in the callus-inducing culture medium for inducing. The above culture medium is prepared by adding sucrose, 20-40g, agar powder, 5.4-7.2g, 2,4-dichlorophenoxyacetic acid, 0.25-3.0 mg, and 6-(benzyl amino) purine, 0.5-3.0 mg in 1 litre of MS basic culture medium, pH 6.0. Hold the prepared culture medium in the nutritious bottles, 25ml / bottle, then sterilize for 25 minutes under a 0.1-0.15 MPa pressure, then place the bottles in the hothouse for cultivating, temperature 22-26 deg.C and luminous intensity 2000-3000 lx.

A method for inducing the embryonic callus with high inducing effect and its special culture medium are disclosed. Said special culture medium DCR contains proportionally VB1, VB6, nicotinic acid, inositol, glutamine, hydrolytic casein, 2,4-dichlorophenoxyacetic acid, 6-BA, cane sugar and agar.

The invention discloses a tissue culture and rapid propagation technology for Clematis 'Arabella', which belongs to the technical field of tissue culture and rapid propagation of the Clematis 'Arabella'. In the technology, a regeneration system of the Clematis 'Arabella' is established by taking a stem segment, which is provided with buds, of a new branch in the current year as an explant. The research discovers that: the optimal culture medium for axillary bud induction comprises a murashige and skoog (MS) culture medium, 2,4-dichlorophenoxyacetic acid at the concentration of 1.0mg / L, indolebutyric acid at the concentration of 1.0mg / L and sucrose at the concentration of 30g / L, and the differentiation rate reaches 100 percent; the optimal culture medium for adventitious bud proliferation comprises an MS culture medium, 6-benzyladenine at the concentration of 0.5mg / L, indolebutyric acid at the concentration of 0.1mg / L and sucrose at the concentration of 30g / L, and the proliferation coefficient is 3.98; and an appropriate rooting culture medium comprises a 1 / 2MS culture medium and naphthylacetic acid at the concentration of 0.04mg / L, and the rooting rate reaches 89.3 percent. Through 5 to 7 days of bottle-opening seedling hardening, pearlite and peat in a ratio of 1:3 are taken as matrices, and after 20 days, the investigation discovers that the transplant survival rate of seedlings reaches 90 percent. The technology can be applied to the efficient and rapid propagation of the Clematis 'Arabella', and can realize the industrial breeding of the Clematis 'Arabella'.

A method for regulating properties of a plant, includes: providing a nanoagent having at least one nanocomposite; and delivering the nanoagent to the plant. The nanocomposite has at least one gold nanorod, a silver layer coated on an outer surface of the gold nanorod, a pegylated layer coated on the silver layer, and an active layer conjugated to the pegylated layer. The silver layer includes silver nanoparticles. The pegylated layer includes at least one of thiolated polyethylene glycol (HS-PEG), thiolated polyethylene glycol acid (HS-PEG-COOH) and HS-PEG-NHx. The active layer includes at least one bio-active agent configured to interact with the plant. The bio-active agent can be 2,4-dichlorophenoxyacetic acid (2,4-D).

The invention discloses a composition containing glyphosate and 2,4-dichlorophenoxyacetic acid, and a use thereof. The composition is characterized in that crop accepted auxiliary materials contain glyphosate and 2,4-dichlorophenoxyacetic acid. The composition has an obvious synergistic effect on gramineous weeds represented by crabgrass and an addition effect on broad leaf weeds represented by chenopodium album thus can be utilized as a non-selective herbicide. The composition has the advantages that 1, the composition is compounded from novel drugs and has the characteristics of strong efficacy and low usage amount; the composition has weed control effects concretely comprising an obvious synergistic effect on gramineous weeds and an addition effect on broad leaf weeds; and the composition realizes that when a dosage of each drug is reduced, good weed control effects are still obtained thus a weed control cost is reduced and adverse influences caused by large dose drugs on the environment are avoided; and 2, the composition has good control effects, a fast weed eliminating speed and a strong adaptability.

The invention discloses a method for preparing a magnetic halloysite molecularly imprinted polymer with specific adsorption to 2,4-dichlorophenoxyacetic acid. The preparation method comprises the following steps: preparing magnetic halloysite nano-tubes by using corroded halloysite nano-tubes by a coprecipitation method; reacting the magnetic halloysite nano-tubes and methacrylate in methylbenzene to obtain magnetic halloysite nano-tubes with double-bond-modified surfaces; after polymerizing the magnetic halloysite nano-tubes with double-bond-modified surfaces, the polymerized monomers and a crosslinker by taking the 2,4-dichlorophenoxyacetic acid as a template, then removing the 2,4-dichlorophenoxyacetic acid to obtain the magnetic halloysite molecularly imprinted polymer with specific adsorption to the 2,4-dichlorophenoxyacetic acid. The raw materials used in the preparation method are low in cost; the preparation method is easy to operate and easy to implement; the prepared magnetic halloysite molecularly imprinted polymer is stable in structure, has specific adsorption to the 2,4-dichlorophenoxyacetic acid, and can effectively separate and remove the 2,4-dichlorophenoxyacetic acid from a complex system.

The invention provides a process for processing 2,4-D (2,4-dichlorophenoxyacetic acid) pesticide wastewater, comprising the following steps: extracting the wastewater by using an oil-phase extractant to remove a part of organic matters, adding water phase into an adsorbing system to further remove organic matters, removing salt by using a nanofiltration membrane and optionally cleaning the nanofiltration membrane. The organic matters and the salt in the wastewater can be extracted, concentrated, separated and recycled, and a 2,4-D pesticide wastewater quasi-zero emitting processing cleaner producing process system is formed integrally.

The invention discloses a non-woven fabric container cutting seedling raising method of Fraxinus velutina twigs. The non-woven container cutting seedling method includes the following steps: (1) preparing cutting media: the cutting media are formed by preparing the following raw materials according to the volume percent: 15-25% of perlite, 5-15% of vermiculite, 65-75% of turfy soil, 2-7% of bagasse and 3-8% of saw dust, and spraying carbendazim solutions on the cutting media for disinfection; (2) preparing rooting agents: dissolving 100-400mg naphthylacetic acid in 40-50mL 95% ethyl alcohol, filling in 20-30mg 2,4-dichlorophenoxyacetic acid, 5-10mg zinc nitrate, 5-10mg nitric acid molybdenum, 5-10mg lanthanum nitrate and 40-50mg boric acid, filling in water until the solutions are at 1,000mL, and evenly mixing the solution; (3) preparing and treating cutting slips; (4) inserting the cutting slips into the cutting media, wherein the cutting depth is 8-9cm; (5) moving the non-woven fabric seedling raising container into a greenhouse, and erecting a shading screen for shading, wherein the shading percentage is 60-70%, the indoor temperature is kept at 26-29 DEG C, and the humidity is kept at 85-90%. The non-woven fabric container cutting seedling raising method of Fraxinus velutina twigs improves the survival rate and ensures to cultivate robust high-quality seedlings.