1143 results about "Zinc Acetate Dihydrate" patented technology

A catalyst for synthesizing vinyl acetate from acetylene and acetic acid is prepared from activated carbon, zinc acetate and alkaline bismuth carbonate in mass ratio of 100: (27-40): 0.026 by excessive solution dipping method.

The present invention discloses the preparation process of CdSe/CdS, CdSe/ZnS and other II-VI type core-shell quantum dot. The CdSe/CdS and CdSe/ZnS core-shell quantum dot are prepared with cadmium acetate, zinc acetate or other inorganic compound, instead of Cd(CH3)2, Zn(CH3)2 or other inflammable, detonable and expensive organic metal compound, as material. The prdouct has excellent single dispersivity, improved fluorescent property, high quantum yield, high stability, and may be used widely as the fluorescent mark for biological detection and analysis.

The invention discloses an aluminum-doped zinc oxide film coating and nano-rod array material as well as a preparation method thereof. The aluminum-doped zinc oxide film coating and nano-rod array material comprises the components based on the weight percentage: 95-99% of zinc oxide and 1-5% of aluminum-doped quantity. The preparation method adopts a sol-gel method, zinc acetate and aluminium nitrate are added with organic solvent according to the proportion for heating under reflux; the mixed solution is then added with certain quantity of stabilizing agent for water bath heating at certain temperature and added with organic reagents such as absolute ethyl alcohol, methanamide or methanol and the like to prepare sol according to the need; after that, a spin coating method is adopted to form a film, and the aluminum-doped zinc oxide nano film coating material can be obtained by the processes such as drying, pretreating, repeatedly spin coating, annealing, secondary annealing under the atmosphere of hydrogen and nitrogen and the like; then, a hydrothermal method is adopted for preparing highly oriented aluminum-doped zinc oxide nano-rod and array thereof. The invention has high utilization rate of the raw materials, low cost and simplified preparation technique, and can control the performance and the particle size of the material from the molecular design level.

A method of preparing nanostructured zinc oxide layers on a substrate by chemical spray pyrolysis at moderate deposition temperatures from 350° C. to 600° C. is disclosed. An aqueous or aqueous alcoholic solution comprising zinc chloride or zinc acetate as precursors is prepared and sprayed onto the preheated substrate so that the precursor reacts to form zinc oxide layer on the substrate. Thiourea or urea may be also added to the solution. Glass, silicon, or metal oxide covered glass can be used as the substrate.

The invention discloses a stabilized chlorine dioxide disinfection solution and its preparation method. The disinfection solution is composed of component A and component B, wherein component A is stabilized sodium chlorite solution consisting of chlorite, a stabilizing agent, a complexing agent, a pH stabilizing agent, and the balance a pH conditioning agent and water; component B is an activating agent, which can be at least one of citric acid and hydrochloric acid. The product of the invention has the advantages of stability, long shelf-life, and a validity period up to 2 years, and can be used as a disinfectant. The disinfection solution of the invention has simple process and convenient usage. In the invention, the original mode of pH value adjusting by acid is changed, and zinc chloride and zinc acetate are employed to remove sodium hydroxide in raw materials and reach the purpose of pH value adjusting. Simultaneously, zinc acetate and sodium hydroxide generate no amphoteric substance, and the actual operation is easier.

The invention relates to a method for preparing zinc oxide nano-rods array membrane with controllable wettability, which belongs to a field of nano materials. The invention uses zinc acetate sol to prepare adhesive membrane on a basement through spinning technics; a crystal membrane is generated after annealing; the basement is positioned in mixed precursor solution of zinc nitrate and hexamethylene tetrammine and is hydro-deposited for 3-5 hours under a temperature ranging from 90 DEG C to 100 DEG C; the zinc oxide nano-rods array can be prepared on the basement. At the same time, by controlling concentration of the sol, times of spinning, temperature and time of annealing, controllability of the zinc oxide nano-rods array density and controllability of the array wettability can be realized; problem of unsteady wettability of the array can also be overcome.

The invention relates to a preparation method of a single-walled carbon nanotube metal-organic framework in the nanotechnology field, which comprises the following steps: a. mixing 1 weight proportion of dried single-walled carbon nanotube with 50-5000 weight proportions of strong oxidizing acid to be processed by ultrasonic treatment, stirring to react, sucking filtration and washing until the solution is neutral, and obtaining acidulated carbon nanotube after drying; b. adding zinc acetate aqueous solution drop by drop, stirring to react, sucking filtration and washing, dispersing the product in an organic solvent again, sucking filtration once again, and obtaining the product SWNT-MOF-1 after drying; c. mixing the SWNT-MOF-1 and the organic solution to be processed by the ultrasonic treatment, adding the organic solvent solution of an organic ligand, stirring to react, cooling, adding the organic solvent to leach, sucking filtration, dispersing the black products in de-ionized water again, sucking filtration once again, dialyzing the black products, and obtaining the final products after drying. The method is simple and the material with both the perfect structure of the single-walled carbon nanotube and the structure of the metal-organic framework can be obtained.

The invention discloses a ZnO@ZIF-8 core-shell structure microsphere and a preparation method thereof. The core-shell structure microsphere is formed by ZnO and ZIF-8, wherein ZnO is adopted as a core, ZIF-8 is adopted as a shell, the diameter of the spherical ZnO core is 250 to 300 nm, the surface of the spherical ZnO core is a rough surface, the thickness of the ZIF-8 shell is 40 to 60 nm, the ZIF-8 shell is formed by a block-shaped polygonal body, and the specific surface area of each microsphere is more than or equal to 300m<2>/g. The preparation method comprises the following steps: adding dihydrate zinc acetate into diethylene glycol at a weight ratio of (3.5-7.5): 250 to obtain a mixture, refluxing the mixture for at least 1h under the temperature of 140 to 180 DEG C to obtain a reaction liquid, after the reaction liquid is cooled to the room temperature, sequentially carrying out solid-liquid separation, washing and drying treatment on the reaction liquid to obtain spherical ZnO, then adding the spherical ZnO into 3.16 to 4.16 mol/L of 2-methylimidazole solution at a weight ratio of (0.008-0.012): (2.5-2.9) to obtain a mixed solution, standing and aging the mixed solution for 8 to 60 minutes, sequentially carrying out solid-liquid separation, washing and drying treatment on the mixed solution to obtain a target product. The ZnO@ZIF-8 core-shell structure microsphere is good in dispersing property and relatively large in specific surface area and can be widely applied to the fields such as gas storage, separation and catalyzing.

The invention discloses a silver nanoparticle-modified zinc oxide nanorod array, a preparation method thereof and application thereof. An array consisting of zinc oxide nanorods is arranged on a substrate; the length of the zinc oxide nanorods is 1 to 1.4mu.m; the diameter of the rods is 50 to 60nm; the size of silver nanoparticles at the top ends of the rods is 100 to 120nm; the size of the silver nanoparticles on the surfaces of the rods is 25 to 35nm; the distance between the particles is less than or equal to 10nm; the distance between the silver nanoparticles at the top ends of the adjacent rods is 40 to 60nm; and the distance between the silver nanoparticles on the surfaces of the adjacent rods is 25 to 35nm. The method comprises the following steps of coating a zinc acetate ethanol solution on the substrate; after drying the substrate, cleaning, dispersing and thermally decomposing the substrate to obtain a substrate on which a zinc oxide seed layer is coated; performing electro-deposition on the substrate coated with the zinc oxide seed layer in a zinc nitrate ammonia complexation solution to obtain a substrate with the zinc oxide nanorod array; and performing silver ion sputtering on the substrate in an ion sputter to obtain the target product. The silver nanoparticle-modified zinc oxide nanorod array can serve as an active substrate of SERS (Surface Enhanced Raman Scattering) and is used for measuring rhodamine 6G or polychlorinated biphenyl 77.

The invention relates to a preparation method of a ZnO nanometer powder with a flaky and vesicular structure, comprising the following steps: firstly, to place a liquid mixture of a zinc acetate solution and a carbamide solution into a microwave oven to react 30 to 60 minutes under temperature of 60 to 95 DEG C and power of 500 to 900W; secondly, separation, to scour and dry the turbid solution to obtain a precursor of basic zinc carbonate; thirdly, to roast the precursor of basic zinc carbonate 1.5 to 3 hours at a temperature of 400 to 600 DEG C to obtain the vesicular ZnO nanometer powder. The invention is characterized in that the prepared ZnO powder is white and belongs to the hexagonal system. The product by the preparation method has the advantages of high rate of specific surface area, high purity and good quality.

The invention discloses an ion nutritional liquid fertilizer and a preparation method thereof. The fertilizer comprises the following components by weight parts: 15-35 parts of potassium hydroxide, 5-15 parts of germanium dioxide, 1-5 parts of sodium selenite or sodium selenate, 5-15 parts of zinc acetate or zinc sulfate, 1-5 parts of chromic chloride, 2-8 parts of ammonium metavanadate, 15-40 parts of organic acid, 20-50 parts of amino acid, 10-20 parts of boric acid, 2-10 parts of urea and 500-900 parts of water, wherein the organic acid is citric acid or acetic acid and the amino acid is compound amino acid or monomer amino acid. The preparation method comprises the following steps of: taking the components of the fertilizer by weight parts; dissolving germanium dioxide into the potassium hydroxide; adding the organic acid, and then performing acidizing chelation reaction for 5-10 hours; adding the sodium selenite, zinc acetate, amino acid, boric acid, chromic chloride, ammonium metavanadate, urea and water; reacting for 5-10 hours; and filtering and removing slag, thereby obtaining the ion nutritional liquid fertilizer.

The invention relates to a process for preparing nano zinc oxide wherein zinc acetate alcoholysis reaction is employed to couple the formation of zinc oxide and esterification reaction between acetates and ethanol, thus obtaining nana zinc oxide powder with double dispersibility.

The invention discloses a polyester fabric hydrophilic antistatic agent which consists of the following components by weight percentage: 8 to 18 percent of DMT, 38 to 48 percent of glycol, 16 to 26 percent of polyoxyethylene, 6 to 16 percent of zinc acetate, 4 to 14 percent of diantimony trioxide and 3 to 8 percent of triphenyl phosphate, and the total amount of all the components is 100 percent. Interchange esterification and condensation polymerization are carried out to all the components so as to obtain the hydrophilic antistatic agent. The hydrophilic antistatic agent is adopted to prepare fabric-washing treatment liquid, and during the process the magnesium chloride hexahydrate is added and a two-dipping-two-rolling method is adopted to deal with the polyester fabric, and then the fabric is dried so as to complete the later finishing to the terylene fabric. The hydrophilic antistatic agent of the invention has stable antistatic capability, good washing resistance and low price. Adopting the antistatic agent to the later finishing of dacron can save the baking process of applied process so as to reduce energy cost and enhance the wearing property of polyester fiber and corresponding fabrics so as to meet the simulation requirement to polyester fabrics of costume fabric market.

The invention relates to a preparation method of recycled polyester for the field of chemical recycling of waste polyester. A dihydric alcohol titanium alkali metal coordination compound which can be dissolved in glycol is used as a catalyst for catalyzing depolymerization of glycol of a waste polyester material and a re-polymerization process of a depolymerization product. The catalyst has relatively high catalytic activity to depolymerization of glycol of waste polyester and the re-polymerization process of the depolymerization product so as to avoid adverse effects on re-polymerization because of catalyst residues after catalytic alcoholysis by soluble catalysts such as zinc acetate, zinc-containing metal salts and halogen-containing ionic liquids and the like, so that the catalyzing efficiency is low due to complex mass transfer in a catalytic process of a solid heterogeneous catalyst. By adopting the preparation method of the recycled polyester, the catalyst which does not needed to be removed from the depolymerization product can be used for re-polycondensation, so that the separating and purifying cost of the depolymerization product is greatly lowered and smooth operation of the re-polymerization process and the quality of the recycled polymer are ensured, thereby providing probability for continuous chemical recycling of PET (polyethylene terephthalate).

This invention is concerned with packaged food products which contain specific combinations of functional additives aimed at addressing specific health indicators, in particular flatulence, gastro-intestinal health, stress and immune system responsiveness, in pet animals. There is provided a commercially packaged mammal pet food product that includes a manufactured, shelf-life stable food substrate and a combination of functional additives. The functional additives include at least one non-palatable plant-based remedy and/or dietary fiber source that are present to strengthen and/or maintain a specified health indicator of a mammal pet animal. The food product is portioned and packaged with the functional additives being present in predetermined concentrations and amounts sufficient to be effective in achieving said indications on regular feeding of the pet animal with said food product. The food substrate is present in a proportion sufficient to mask the flavor and/or odor of the non-palatable additive and is made-up of a unique combination of materials that are able to be processed at lower temperatures to preserve the natural botanical functional additive's activity. Functional additives intended to address dietary flatulence problems include a combination of Yucca extract, charcoal and salts of zinc, such as zinc acetate. Functional additives to promote or maintain gastro-intestinal health include a combination of L-glutamine, D-glucosamine sulphate, sugar beet pulp, slippery elm. Functional additives to strengthen or maintain a pet animal's natural body defenses include a combination of vitamin E, vitamin B complex, primrose oil vitamin C and Marigold meal. Functional additives to promote or maintain reduction of stress and/or improved behavior of a pet animal include a combination of Valerian root extract, Kava root extract, vitamin B complex and magnesium salt.

The invention belongs to the technical field of the preparation method of a nano material, in particular to a preparation method of a ZnSe-to-Cu quantum point. The preparation method comprises the following steps that: (1), under the protection of inert gases, Se powder and sodium borohydride are dissolved in distilled water, the amount of substance of the sodium borohydride is equal to or greater than that of the Se powder, the mixture is heated to be completely dissolved, and a Se solution with the Se content of 0.01 to 0.75mol/L is manufactured; (2), zinc acetate and copper acetate are dissolved in the distilled water, the mole number of copper ions does not exceed 15% of that of zinc ions, thioglycollic acid is added into the mixture, the pH is regulated to 8 to 13, and a Zn solution with the Zn content of 0.01 to 0.1mol/L is manufactured; and (3), the manufactured Se solution is injected into the manufactured Zn solution, the mixture reacts for 1 to 5 hours in oil bath at 90 to 150 DEG C and is cooled to room temperature, ZnSe-to-Cu quantum point water solution is obtained, then isopropanol is added into the ZnSe-to-Cu quantum point water solution, and a ZnSe-to-Cu quantum point is obtained by centrifugation and separation. The invention has the beneficial effects that cheap raw materials are adopted to substitute an expensive and dangerous organic metal precursor, which is green and environment-friendly, and the preparation cost is reduced; and the water solution is used as a reaction solvent, thus the reaction temperature is reduced and the operation is simple and safe.

The invention discloses a reticulate nanopore zinc-oxide micron hollow sphere and a preparation method thereof. The hollow sphere of the invention comprises the following materials: the surface of the zinc-oxide micron hollow sphere is provided with reticulate nanopore, wherein, the diameter of the hollow sphere is 1 to 10mum and the aperture of the nanopore is 50 to 100nm; the method of the invention comprises a liquid-phase chemical method, particularly (a) according to the mole ratio that zinc salt: chelating agent: sodium citrate: water is equal to 1:(0.5-1.5):(0.05-0.15):(50-150), the materials are weighted, then put into a vessel, stirred, dissolved and kept warm for three hours at the temperature of 70 to 100 DEG C under the sealing state to obtain a product; (b) the obtained product is filtrated, washed more than one time and heated for 1 to 3 hours at the temperature of 300 to 500 temperature, and the reticulate nanopore zinc-oxide micron hollow sphere is obtained; the zinc salt is zinc nitrate or zinc acetate or zinc chloride or zinc sulfate, and the chelating agent is urea or ammonia or hexamethylene tetramine or ammonium hydroxide. The hollow sphere can be widely applied to the fields of drug transportation, chemical reaction carrier, cosmetics, coating material, catalytic and photocatalysis material, etc.

A method is provided for reducing stool odor of a companion animal such as a cat or dog. The method comprises causing the animal to ingest a composition comprising a stool odor reducing effective amount of a zinc ion source, for example zinc acetate.

A thin-film transistor array panel includes: an insulating substrate; an oxide semiconductor layer that is formed on the insulating substrate and includes a metal inorganic salt and zinc acetate; a gate electrode overlapping with the oxide semiconductor layer; a gate insulating film that is interposed between the oxide semiconductor layer and the gate electrode; and a source electrode and a drain electrode that at least partially overlap the oxide semiconductor layer and are separated from each other.

The invention belongs to the field of vinyl acetate synthesized by a fixed bed type acetylene gas phase method, in particular to a catalyst for preparing vinyl acetate by a rare earth metal-bearing acetylene method as well as a preparation method thereof, and the rare earth metal-bearing catalyst is applied to the synthesis of vinyl acetate which takes acetic acid and acetylene as raw materials by adopting the fixed bed type gas phase method. The zinc acetate and lanthanum acetate are dissolved with methanol, then active carbon is dipped in the methanol solution containing the zinc acetate and lanthanum acetate under agitation, the zinc acetate and lanthanum acetate are loaded on the active carbon through an impregnation method, and the catalyst is obtained after drying. The content of the loaded active component zinc acetate is 10 to 40wt% of the total weight of catalyst, and the content of the loaded active component lanthanum acetate is 0.1 to 5wt% of the total weight of catalyst. The catalyst takes the active carbon as a carrier, and adopts two metallic salts of the loaded zinc acetate and the lanthanum acetate, and the catalyst containing lanthanum acetate has the advantage of low initial temperature of reaction compared with the usual active carbon zinc acetate catalyst.

The invention discloses a Ni-Zn ferrite/SiO2 composite nano-fiber and a preparation method thereof, belonging to the field of inorganic non-metal composite functional materials and the preparation thereof. In the preparation method, PVP (Polyvinylpyrrolidone) is taken as a complexing agent to react with nickel acetate, zinc acetate, ferric nitrate and tetraethoxysilane so as to prepare a precursor solution. Precursor fibers are prepared by an electrostatic spinning technique firstly; and then, the obtained precursor fibers are dried and roasted at a proper temperature to prepare NiO.5Zn0.5Fe2O4/SiO2 composite nano-fiber, wherein the SiO2 exists in an amorphous form. The invention has the advantages of wide raw material source, easily controlled reaction process, simple technique, convenient operation and the like by adopting the technique solution of the invention to prepare the required target products; in addition, the invention can conveniently control the microstructure and appearance of the products by regulating process factors and chemical components so as to realize the controllability on the electromagnetism thereof. The preparation method is also applied to the preparation of other magnetic composite nano-fiber materials.

The invention relates to a method for quickly determining the content of additive of a plurality of types in food. An adopted technical scheme is as follows: a solid sample is accurately weighed into a centrifuge tube, petroleum ether or n-hexane is additionally arranged to become homogenate, and supernatant fluid is removed by centrifugation; after the petroleum ether or the n-hexane in the residue are volatilized, the mixed solvent of ethanol, ammonia and water is additionally arranged, ultrasonic extraction is carried out, and the supernatant fluid is obtained by centrifugation as sample liquid for testing; the sample liquid for testing is adopted, potassium ferrocyanide solution and zinc acetate solution are additionally arranged, the mixture is mixed uniformly and centrifuged; the supernatant fluid is concentrated in water bath at 60DEG C to 100DEG C; concentrated solution is transferred to a measuring flask with water; the pH value is regulated to 5 to 7, water is additionally arranged to fix the capacity to a scale; the mixture is mixed uniformly, is filtered by a 0.45mum microfiltration membrane and arranged in a sample bottle as sample liquid; and the sample liquid is tested in a liquid chromatograph by gradient elution under variable wavelengths. According to the invention, the method for quickly determining the content of additive of a plurality of types in food is simple and easy, has high precision, high accuracy, high sensitivity, has the recovery rate being above 80 percent, and is used for determining the content of additive of a plurality of types in food at the same time.

The invention discloses a making method of zinc oxide nanometer fiber as optical catalyst, which comprises the following steps: adopting zinc acetate as primer and fiber acetate as carrier; using organic solvent dimethyl formamide/acetone as co-solvent; adopting electrostatic spinning technique to make composite nanometer fiber film of zinc acetate/fiber acetate; dissolving in the 0.1N NaOH solution; washing; drying; sintering; obtaining the ZnO nanometer fiber film with diameter less than 100nm.

The invention discloses a synthesis method and use of nano cadmium zinc sulfide with visible light catalytic activity and relates to a synthesis method and use of a sulfide having visible light catalytic activity. When the synthesis method is used, the long reaction time and high reaction temperature problems of the conventional method for preparing cadmium zinc sulfide are solved. The synthesis method comprises: dissolving zinc acetate, cadmium acetate, thioacetamide and dodecyl benzene sulphonic acid in alcohol solvent to obtain mixed solution; and placing the mixed solution in microwaves for reaction. The nano cadmium zinc sulfide synthesized by the method can be used as a photocatalytic material for use in the hydrogen production by decomposition in visible light. The synthesis methoddisclosed by the invention adopts a simple process and readily available raw material, and can synthesize the nano cadmium zinc sulfide quickly with small energy consumption and high yield. The nano cadmium zinc sulfide has uniform particles and high purity and has high strong absorbability at wavelength of about 490 nanometers; and the nano cadmium zinc sulfide demonstrates good visible light response property, and the hydrogen generation rate reaches 300 to 450 millimoles/h<-1>.g<-1>, which is very high.

The invention relates to a nano-silver @MOF-5@ natural biological fiber multifunctional composite material integrating good bactericidal and hemostatic properties and chemical and biological warfare agent protective properties and a preparation method of the multifunctional composite material. The preparation method comprises the following steps: (1) impregnating natural biological fibers in a NaOH solution containing sodium chloroacetate, taking out the natural biological fibers and flushing the natural biological fibers by virtue of distilled water; (2) impregnating a material obtained in the step (1) alternately in a DMF solution of zinc acetate and a mixed solution of DMF of terephthalic acid and triethylamine in a circulating mode, and washing the material by virtue of DMF after each impregnating so as to obtain (MOF-5)n@ natural biological fibers through such alternate circulating precipitation; and (3) washing the material by virtue of a DMF solution, impregnating the material in CHCl3, and conducting vacuum drying; then impregnating the material in AgNO3 ethanol and water solution, conducting ultraviolet irradiation, flushing the material by virtue of de-ionized water and conducting vacuum drying. The multifunctional composite material disclosed by the invention is simple and easily controllable in preparation process, easily available in raw materials and low in production cost.

The invention relates to an n-shaped titanium oxide nanotube/p-shaped diamond heterojunction photocatalytic material and a preparation method, belonging to the technical field of photocatalytic materials and the preparation thereof. The photocatalytic material is formed by growing an n-shaped TiO2 nanotube with an anatase structure on a p-shaped diamond. The preparation method comprises the following steps of: 1. growing a boron-doped p-shaped polycrystalline diamond film or boron-doped p-shaped diamond single crystal; 2. sputtering a ZnO seed crystal layer on a p-shaped diamond; 3. growing a ZnO nano rod on the ZnO seed crystal layer in the mixed water solution of zinc acetate and hexamethylene tetramine; and 4. growing the n-shaped TiO2 nanotube on the p-shaped diamond in the mixed solution of ammonium fluorotitanate and boric acid by using the ZnO nano rod as a template. The.TiO2 nanotube is prepared on the diamond by utilizing a liquid-phase synthesis method, thus heterojunction with excellent photocatalytic performance is obtained; and the method is simple, has low cost, and is suitable for large-scale production and application.

The invention discloses a preparation method for a cobalt-doped zinc oxide gas-sensitive material and application thereof, which relate to the technical fields of material chemistry and gas-sensitivesensors. Polyvinylpyrrolidone (PVP), zinc acetate and cobalt nitrate hexahydrate are dissolved in 75ml of ethylene glycol, wherein polyvinylpyrrolidone, the molecular weight of which is 400,000, is 0.3g, the molar ratio of cobalt nitrate hexahydrate to zinc acetate is between 0.025 and 0.233, and thereby the cobalt-doped nanoscale spherical zinc oxide gas-sensitive material is prepared. Because amicrowave-and-ultrasonic wave-co-assisted solvothermal method is adopted in the process of preparation, the cobalt-doped nanoscale spherical zinc oxide material has high detection sensitivity and goodselectivity; and the preparation method is simple and harmless to the environment, and effectively overcomes defects existing in the prior art, for example, preparation methods are complex and cost is higher and production process conditions are strict, and sensors have high working temperature, low response and recovery speed and short service lives.

The invention belongs to the technical field of chemical compound preparation and in particular provides a novel metal organic framework structured compound and a preparation method thereof. The structural formula of the compound is [Zn4(mu4-O)(BTC)2(phen)2].4H2O, wherein mu4 is oxo-bridged; BTC is 1,3,5-trimesic acid (C9H6O6); phen is 1,10-o-phenanthroline (C12H8N2); the molecular formula of the compound is C42H30N4O17Zn4 and the molecular weight is 1124.18; the compound belongs to the monoclinic system and C2/c space group; the cell parameter beta is 92.353(3) degrees; the cell volume is shown in the specification, Z is 4 and Dc is 1.806g/cm3. In the method, the cheap and nontoxic zinc acetate or zinc chloride is used as the reactant and the organics trimesic acid and o-phenanthroline are used as the ligands to obtain the Zn-MOFs material. The compound has simple preparation process and equipment and high heat stability at the temperature of more than 450 DEG C and can be widely applied to fluorescent organism markers.

The invention relates to a method for measuring alumind and metal aluminum in AD15 deoxidizing agent, which relates to a method for chemically analyzing materials. The invention provides a method for measuring alumind and metal aluminum in AD15 deoxidizing agent aiming at the problem that composition analysis of metal aluminum in the existing AD15 deoxidizing agent is not disclosed. The method comprises placing AD15 deoxidizing agent in boiling water bath to decompose samples in hydrochloric acid medium, and then filtering and separating, adding quantitative and excess EDTA standard solution in buffer solution, back titrating zinc acetate, and getting the content of metal aluminum, using a melting method to measure to get total aluminum, the difference is alumind. No analytical method can directly measure the content of metal aluminum when alumind exists, and the method excellently solves the problem. The invention has the advantages of simple and fast method, high accuracy and excellent repeatability, which is beneficial for popularization and application.

The invention relates to a non-interpenetrating chiral MOF (metal organic framework) stationary phase, its preparation method and application in enantiomer separation in HPLC (high-performance liquid chromatography). The stationary phase is a non-interpenetrating chiral three-dimensional porous framework complex with a structural formula as {[ZnL].H2O}n. An asymmetric structural unit {[ZnL].H2O} of the complex is composed of a Zn<2+>, an L ligand and a guest water molecule. The L ligand is -NH- containing chiral pyridine carboxylic acid, its chemical composition is [(N-(4-pyridylmethyl)-L-leucine.HBr)], and its molecular formula is C12H19BrN2O2. Chiral amino acid and 4-pyridylaldehyde are selected as raw materials to synthesize the-NH- containing pyridine carboxylic acid chiral ligand by a one-step process. The ligand and zinc acetate are adopted as raw materials to undergo room temperature diffusion so as to obtain the MOF stationary phase. The material provided in the invention has uniform chiral helical channel, uniform aperture and orifice, and can be used for separation of chiral drugs and other enantiomers. The separation is selectively dependent on the size of a separated enantiomer molecular size, but is not dependent on the functional group of the separated enantiomer. Thus, the non-interpenetrating chiral MOF stationary phase has the characteristics of traditional zeolite molecular sieve separation.