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172 results about "Ferroporphyrin" patented technology
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L-threonate ferrous, as well as pharmaceutical composition and use for improving and treating human anemia thereof
InactiveUS6313170B1High absorption rateImprove absorption rateHeavy metal active ingredientsBiocideBlood loss anemiaPhysiology
A compound of ferrous L-threonate with structure (I), its compostions and methods useful for iron supplementation for mammals, particularly for human body to improve and treat nutritional iron-deficiency anemia, blood loss anemia and hemolytic anemia.
Owner:JUNENG INDUSTRY CO LTD
Method for preparing benzaldehyde or substituted benzaldehyde by catalytically oxidizing methylbenzene or substituted methylbenzene
ActiveCN102070382AReduce dosageSimple processOrganic compound preparationCarbonyl group formation/introductionBenzaldehydeCatalytic oxidation
The invention provides a method for preparing benzaldehyde or substituted benzaldehyde by catalytically oxidizing methylbenzene or substituted methylbenzene and relates to the field of chemical industrial material intermediates. The benzaldehyde or substituted benzaldehyde of a general formula (1) and relevant side products are prepared by using a substance containing ferroporphyrin, derivatives of the ferroporphyrin or relevant load as a catalyst, adding a proper cocatalyst according to requirements, and oxidizing methylbenzene or substituted methylbenzene by using oxygen-containing gases such as oxygen, air and the like. In the method, the reaction is performed at a certain temperature of between 25 and 250 DEG C and pressure of 0.1 to 2 MPa; the using amount of the catalyst is small, and is 1 ppm to 1 mass percent under a non-load condition and 0.1 to 10 mass percent under a load condition; and other solvents are not added, and if necessary, a certain amount of cocatalyst is added. The method has the characteristics of environmental friendliness and simple process.
Owner:SHANDONG YINGYANG FLAVORS & FRAGRANCES
Method for preparing amorphous FeOOH and FeOOH desulfurizer prepared thereby
ActiveCN101585556AAvoid generatingTroubleshoot follow-up issuesIron oxides/hydroxidesFerrous saltsPhysical chemistry
The invention relates to a method for preparing amorphous FeOOH, which comprises the following steps: (a) mixing solid soluble ferrous salt and solid hydroxid according to a molar ratio of iron to hydroxyl being between 1:2 and 1:3; (b) completing reaction of a mixed material prepared in step (a) by kneading, and controlling the temperature of the material not to exceed 70 DEG C in the kneading process; (c) drying a reaction product obtained in step (b) in air; (d) washing and filtering a material obtained in step (c); and (e) naturally drying or baking a solid obtained in step (d). On the basis, the invention further discloses an amorphous FeOOH desulfurizer prepared by the preparation method, and the desulfurizer has high sulfur capacity and high desulfurization efficiency.
Owner:BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
Iron supplement composition, its preparing method and application of the same
PendingCN101129351AHigh nutritional valuePromote absorptionOrganic active ingredientsMetabolism disorderAbsorption ratioPhysiology
The invention discloses a pharmaceutical composition as an iron supplement agent, which comprises ferrous glycinate, antioxidant and medicinal carrying agents. The invention also discloses preparations containing the composition, the process for preparing the composition and the preparations, and the use of the composition in preventing and treating iron deficiency. The composition is capable of appreciably improving the absorption ratio of iron in intestinal tract, thereby improving iron-deficiency anemia effectively.
Owner:内蒙古百金纳投资有限责任公司 +1
Method for measuring chemical oxygen demand of waste water
InactiveCN101750414AShort timeShorten the timeMaterial analysis by observing effect on chemical indicatorChemistryGlass ball
The invention discloses a method for measuring the chemical oxygen demand of waste water, which comprises the following steps: preparing standard solution of potassium dichromate, ferroin indicator solution, standard solution of ammonium ferrous sulfate, solution of sulfuric acid-silver sulfate and mercuric sulfate; diluting the mercuric sulfate in a water sample, adding the standard solution of potassium dichromate and a plurality of cleaned glass balls in a certain proportion; adding the solution of sulfuric acid-silver sulfate; heating the solution into an autoclave; after keeping the solution at a certain temperature and under a certain pressure for a period of time, adding water to continuously cool to room temperature; adding the ferroin indicator solution, performing titration through the standard solution of ammonium ferrous sulfate; recording the dosage of the standard solution of ammonium ferrous sulfate according to color changes; performing a blank experiment through distilled water according to the same operating steps; and recording the dosage of the standard solution of ammonium ferrous sulfate in blank titration. The method has the advantages of time conservation, and simple requirements on test conditions.
Owner:周建飞
Composite anti-salt agent and applications thereof
ActiveCN107699209AImprove solubilityStrong complexationPipeline systemsDrilling compositionSolubilityFerrocyanide
The invention discloses a composite anti-salt agent, which mainly comprises a ferrocyanide solubilizer A and a complexone B, and can further comprise a polymer lattice modifier C and / or water. According to the present invention, the composite anti-salt agent has a synergistic effect, wherein the ferrocyanide solubilizer A in the composite anti-salt agent can substantially increase the solubility of the salt, and provides the main effect of the composite anti-salt agent, the complexone B in the composite anti-salt agent has good complexation effects on metal ions and can change the metal ion concentration of the salt crystal so as to reduce the solubility product of the salt crystal, and the polymer lattice modifier C can change the compact structure of the salt into the loose structure soas to make the salt be easily carried away by the flowing of the solution. According to the present invention, the composite anti-salt agent can provide excellent salt crystallization prevention effect on salt solutions with highly mineralized sodium chloride, and further can provide good salt release effects on salt solutions with highly mineralized sodium chloride, calcium chloride and magnesiumchloride.
Owner:CHINA PETROLEUM & CHEM CORP +1
Synthetic method of prothioconazole
ActiveCN111303059AAvoid the three wastesDesulfurization impurities are reducedOrganic chemistryProcess engineeringEnvironmental engineering
The invention relates to a synthetic method of prothioconazole. The method specifically comprises the following steps: oxidizing an intermediate A by ferric chloride to generate prothioconazole and simultaneously generate ferrous chloride and hydrogen chloride, oxidizing the ferrous chloride and the hydrogen chloride by hydrogen peroxide dropwise added into the system to regenerate ferric chloride, continuing to oxidize the intermediate A by the generated ferric trichloride to obtain prothioconazole, and repeating the steps until the intermediate A is completely converted into the prothioconazole. According to the synthesis method of prothioconazole, only a catalytic amount of ferric chloride is needed, a byproduct is water, a large amount of three wastes generated by a traditional ferricchloride oxidation method are avoided, and a mild oxidant ferric chloride is adopted, so that desulfurization impurities are greatly reduced, and the yield is high.
Owner:JIANGYIN SULI CHEM
Method for preparing spherical Fe3O4 nano powder
ActiveCN101381109AShorten the time of the oxidation reactionReduce energy consumptionFerroso-ferric oxidesFerrous saltsSpherical shaped
The invention discloses a method for preparing spherical Fe3O4 nanometer powder body. The method comprises the following steps: (1) an aqueous solution of ferrous salt is prepared, heated and stirred to regulate the PH value of between 4.0 and 8.0: (2) the solution is put to a reactor with a gas distributor, stirred and communicated with air; 5 to 15 minutes later after the air is communicated, NH4NO2 or NaNO2 is added for reaction; when the molar ratio of Fe<3+> and Fe<2+> is between 1.6 and 2.6, the air is stopped to communicate; (3) the solution is stirred to regulate the PH value of between 8.0 and 14.0 and react for 1.0 to 5.0 hours; (4) stirring and heating are stopped to naturally cool the solution to the temperature of between 20 and 35 DEG C; and (5) the solution is subjected to solid-liquid separation; solid is washed by deionized water and is dried to prepare the spherical Fe3O4 nanometer powder body. The method can use an industrial byproduct which is cheap and easy to obtain as a raw material, shorten time for oxidation reaction and reduce energy consumption; and the product meets the requirement on the raw material of high-grade ink powder and has no environmental pollution.
Owner:TIANJIN UNIV
Method for purifying zinc hydrometallurgy leaching solution
ActiveCN106191463ARealize enrichment recoveryHigh affinityProcess efficiency improvementSludgeHydrometallurgy
The invention discloses a method for purifying a zinc hydrometallurgy leaching solution. The method is particularly suitable for a zinc sulfate solution or zinc oxide soot sulfate leaching solution obtained after high acid leaching-jarosite (ammonium alum) process iron removal. The method includes the steps that ferroporphyrin in an oxidation solution or a supplement iron source is used for guaranteeing the ferric iron concentration of the solution at first; then seed crystal-lepidocrocite (gamma-FeOOH) slurry is added into a reaction still; afterwards, a zinc sulfate leaching solution with impurities to be removed is added slowly; and meanwhile, a neutralizer is added, the reaction pH value and temperature are controlled, most of ions of ferric iron, arsenic, germanium, fluorine and the like in the solution or all the ions are precipitated, and obtained precipitation sludge is easy to filter and wash. The technological process is simple, and cost is low. Detrimental impurities (like iron, arsenic, fluorine and germanium) generated in the zinc electroanalysis process can be removed, and meanwhile effective enrichment of the germanium is realized, so that the method is suitable for industrialized application.
Owner:SHENZHEN SHENTOU ENVIRONMENT TECH CO LTD
Double-functional amorphous FeMn-MOF-74 (ferromanganese-metal organic framework-74) nanoflower material and preparation method and application
InactiveCN109320736AEasy to operateNo secondary pollutionWater contaminantsWater/sewage treatment by sorptionMetal-organic frameworkChloride
The invention relates to a double-functional amorphous FeMn-MOF-74 (ferromanganese-metal organic framework-74) nanoflower material and a preparation method and application, and relates to a nanometermaterial and a preparation method and application, which aim at solving the problem of low adsorption capacity of existing MOF-based adsorbent to As(III). The double-functional amorphous FeMn-MOF-74 nanoflower material is prepared by taking 2,5-dihydroxy terephthalic acid as an organic ligand, anhydrous manganese chloride and anhydrous ferrous chloride as metal salt ligands, and N,N-dimethyl formamide and anhydrous ethanol as solvents through a solvothermal method. The preparation method comprises the following steps of 1, preparation of a mixed solution; 2, solvothermal reaction; 3, cleaningand drying. The double-functional amorphous FeMn-MOF-74 nanoflower material is used for removing poisonous metals in water, and oxidizing the poisonous metals in the water. The preparation method canbe used for preparing the double-functional amorphous FeMn-MOF-74 nanoflower material.
Owner:NORTHWEST A & F UNIV
Preparation method and applications of targeting prussian blue nano particles
InactiveCN105963696ALow cytotoxicityPromote absorptionPhotodynamic therapyPharmaceutical non-active ingredientsSinglet oxygenPotassium ferricyanide
The invention discloses a preparation method and applications of targeting prussian blue nano particles. The targeting prussian blue nano particles are synthesized by adopting hyaluronic acid, potassium ferricyanide and ferrous chloride, ammonium ferrous sulfate or ferrous sulfate through a one-step method. The preparation method is easy and convenient to operate, the raw materials are safe and easily available, and the prepared nano particles are small in cytotoxicity and good in biocompatibility, have good dispersibility in aqueous solution, have good absorption in infrared and near-infrared areas, and also have good photothermal conversion efficiency; in addition, the prepared nano particles have good photosensitization, and can generate singlet oxygen under the irradiation of infrared light or near-infrared light. The prepared prussian blue nano particles can be used for the photo-thermal and photodynamic therapy in a targeting manner, and have the broad application prospect in the treatment field of cancer.
Owner:GUANGXI NORMAL UNIV
Iron matrix autotrophic denitrification microbacterium strain and application thereof
ActiveCN103232958AHas the ability to degradeNo need to addBacteriaWater contaminantsBio engineeringPure culture
The invention belongs to the technical fields of biological engineering and environmental engineering and relates to a Microbacteriumtestaceum with autotrophic denitrification and ferrous iron oxidation functions and an application thereof. The strain disclosed by the invention is Microbacteriumtestaceum W3 with the collection number of CCTCC NO: M2013108. The iron matrix autotrophic denitrification microbacterium strain W3 is screened from a natural environment by adopting a microbial pure culture technology, the preparation of a biological denitrification bacterial agent is realized, and a high-efficient denitrification strain is provided for a biological enhancement system. In waste water treatment, the strain is taken as a biological denitrification enhancement functional strain, waste water denitrification is performed through iron autotrophic denitrification process, and the strain has the advantages of low energy consumption, low investment cost, low operation cost and simple process.
Owner:WUHAN UNIV
Acidithiobacillus ferrooxidans genetic engineering bacteria and use thereof
InactiveCN101935621AImproved ability to oxidize ferrous ionsBacteriaDispersed particle separationThiobacillus ferrooxidansSludge
The invention discloses Acidithiobacillus ferrooxidans genetic engineering bacteria, which are A. ferrooxidans pTCYC1 with high ferrous oxidization activity, and are characterized in that: the bacteria are named Acidithiobacillus ferrooxidans, and the strain was collected in China General Microbiological Culture Collection Center with a collection number of CGMCC No.3549 on December 28th, 2009. The genetic engineering bacteria of the invention have higher ferrous oxidization activity and more stable performance than wild thiobacillus ferrooxidans and have a promising application prospect in fields of biological leaching, smoke desulfuration, acid mine water processing, sludge heavy metal removal and the like.
Owner:SHANDONG UNIV
Gold leaching method adopting ferrous ions and magnesium thiosulfate
InactiveCN108546827AReduce consumptionEliminate competitive adsorptionProcess efficiency improvementDesorptionDecomposition
The invention discloses a gold leaching method adopting ferrous ions and magnesium thiosulfate. The gold leaching method is characterized in that a ferrous ion solution and a magnesium thiosulfate solution is added into gold-containing minerals so as to leach out gold in the gold-containing minerals. According to the gold leaching method, oxidative decomposition of Cu(NH3)4<2+> to S2O3<2-> is eliminated, so that the consumption of thiosulfate is greatly reduced; Cu(S2O3)2<3-> / Cu(S2O3)3<5-> is prevented from disturbing gold adsorption by resin, the competitive adsorption of Cu(S2O3)2<3-> / Cu(S2O3)3<5-> to the gold on the surface of the resin is weakened, the recovery of the gold in a leachate adopting the resin adsorption method is facilitated, and the desorption of the gold-bearing resin can be realized by adopting a simple one-section process; and the addition of ammonia water is avoided, and therefore the threat of NH3 to the atmosphere and the environment of the water body is eliminated. The gold leaching rate of the gold leaching method is equivalent to that of a traditional gold leaching method adopting copper ions, ammonia or thiosulfate, but the gold leaching method solves the problem that in the traditional gold leaching method adopting thiosulfate is high in thiosulfate consumption and unfriendly to the environment, and the recovery of gold from the leachate is difficult.
Owner:CENT SOUTH UNIV
Integrated method for wet-process desulfurization, denitrification demercuration and dearsenification of complexing ferroporphyrin smoke based on supergravity
InactiveCN103432878AEasy to removeImprove regeneration efficiencyDispersed particle separationAir quality improvementToxicantSulfide
The invention discloses an integrated method for wet-process desulfurization, denitrification demercuration and dearsenification of complexing ferroporphyrin smoke based on supergravity. The method comprises the following steps of firstly, absorbing SOx by utilizing inorganic sulfide, desulfurating, meanwhile, reacting inorganic sulfide with toxic heavy metals such as mercury and arsenic in the smoke so as to generate an insoluble vulcanized salt; utilizing a complexing ferroporphyrin to absorbing NOx by utilizing complexing ferroporphyrin for denitration; and regenerating ab absorber by utilizing inorganic sulfide as a reducing agent. The method provided by the invention has the advantages that a supergravity machine is adopted as gas-liquid mass transfer strengthening equipment, the method is beneficial to removal of toxicants such as SOx, NOx, mercury and arsenic, the regeneration efficiency of the absorbent is high, an absorption liquid is applied in a circulating manner, a reducing agent inorganic sulfide is oxidized so as to generate sulphur which can be recovered, sulphur is processed into a high quality sulphur product, and the secondary pollution is not generated; the process is simple, the absorption efficiency is high, the dust is thoroughly removed, the desulfurization degree is more than 99%, the denitration rate is more than 96%, and mercury and arsenic in the smoke are fully basically removed.
Owner:WUHAN GLT ENERGY & ENVIRONMENTAL TECH CO LTD
Preparation method of high-biocompatibility dual-target modified Fe3O4 nano material
InactiveCN104784710AThe synthesis steps are simpleSynthetic conditions are mildIn-vivo testing preparationsTumor targetWater soluble
The invention relates to a preparation method of a high-biocompatibility dual-target modified Fe3O4 nano material, which comprises the following steps: dissolving ferric chloride and ferrous chloride ( the mole ratio of Fe<3+> to Fe<2+> is 2:1) in water by stirring, introducing an inert gas protective atmosphere, sequentially adding ammonia water and hyaluronic acid into the solution, reacting at room temperature for some time, carrying out cleaning purification on the obtained Fe3O4 nano material, dissolving the Fe3O4 nano material in a PBS (phosphate buffer solution), sequentially adding EDC (1-ethyl-3-(3-dimethylaminopropyl)carbodiimide) and NHS, stirring to react, and adding a targeted protein molecule to continue the reaction; and after the reaction finishes, carrying out cleaning purification on the obtained product again, dissolving the product in the PBS, and preserving at 4 DEG C. The method has the advantages of simple preparation process, environment-friendly raw materials and mild conditions. The obtained product has the advantages of favorable water solubility, favorable nuclear magnetism, high biocompatibility and high tumor targeted recognition capability, is convenient for large-scale production, and has great development potential and application value in the field of biological imaging.
Owner:TIANJIN MEDICAL UNIV
Preparation method and application of b-axial LiFePO<4>/C nano flake material
InactiveCN105244500AUniform sizeGood ability to remove/intercalate lithiumCell electrodesSecondary cellsO-Phosphoric AcidCrystal orientation
The invention discloses a preparation method of a b-axial LiFePO4<4> / C nano flake material. The method comprises the following steps: weighing a ferric salt, a phosphoric acid, a lithium salt, ethylene glycol and an ascorbic acid; mixing the ferric salt, the phosphoric acid, the lithium salt, the ethylene glycol and the ascorbic acid and then stirring the mixed solution for 30-60 minutes; and transferring the entire mixed solution into a high pressure reactor for carrying out a solvothermal reaction to obtain a reaction liquid, wherein the ferric salt is any one of ferrous sulfate septihydrate or ferrous chloride; and the lithium salt is any one of lithium hydroxide monohydrate or anhydrous lithium hydroxide; respectively washing and drying the obtained reaction liquid with deionized water and absolute ethyl alcohol to obtain a powdery mixed precursor; controlling the drying temperature to be 60-90 DEGC; and carrying out a thermal treatment on the obtained powdery mixed precursor for 2-4 hours, so as to obtain the b-axial LiFePO<4> / C nano flake material. According to the obtained LiFePO<4> / C nano material, the thicknesses of flaky particles are about 30nm; and the crystal orientation is a (010) crystal plane.
Owner:SHANGHAI INST OF TECH
Method for denitration of complexing ferroporphyrin smoke based on supergravity
InactiveCN103432889AEasy to removeImprove regeneration efficiencyDispersed particle separationReducing agentFerroporphyrin
Owner:WUHAN GLT ENERGY & ENVIRONMENTAL TECH CO LTD
Iron-based Prussian blue, and preparation method and application thereof
ActiveCN113479911AComplete structureAvoid void defectsIron cyanidesSecondary cellsPhysical chemistryPrussian blue
The invention discloses iron-based prussian blue, and a preparation method and application thereof. The method comprises the following steps: (1) dissolving salt containing ferrous cyanide ions into a deionized water solution to obtain a first salt solution, wherein the content of ferrocyanide ions in the first salt solution exceeds the content of ferrocyanide ions calculated according to the stoichiometric ratio required by the iron-based Prussian blue; (2) dissolving salt containing ferrous ions or manganese ions into a deionized water solution, and adding trisodium citrate to obtain a second salt solution; and (3) pouring the first salt solution into the second salt solution, stirring and standing to obtain a precipitate, and cleaning and drying the precipitate to obtain the iron-based prussian blue. A large amount of Na<+> and Fe(CN)6<4-> are introduced into the precursor solution, the [Fe(CN)6]<4-> vacancy defect and coordination water which are prone to occurring in the product obtained through a coprecipitation method are reduced, the preparation process is simple, and the technical problems that the synthesis condition of iron-based Prussian blue is harsh, the sodium content in the product is low, and the volume is low are solved.
Owner:HUAZHONG UNIV OF SCI & TECH
Preparation method of green synthesis of nano zero-valent iron with extraction liquid of nephrolepis auriculata and application of the nano zero-valent iron
InactiveCN108033541ALow costSimple extraction processWater contaminantsWater/sewage treatment by reductionNephrolepis auriculataFerrous salts
The invention relates to the technical field of preparation of functional materials and restoration of polluted water body in environmental engineering, and especially provides a preparation method ofgreen synthesis of nano zero-valent iron with extraction liquid of nephrolepis auriculata. The method includes the steps of: 1) preparing the extraction liquid of nephrolepis auriculata from nephrolepis auriculata; 2) performing a reaction to the extraction liquid of nephrolepis auriculata with a ferric salt solution or a ferrous salt solution to prepare the green-synthesized nano zero-valent iron. The method is low in cost and simple in extraction process, wherein the extraction liquid has strong reduction capability. The method is simple in process and convenient to carry out, is low in energy consumption and is free of secondary pollution. The nano zero-valent iron has high chromium removal capability. The invention also provides an application of the green-synthesized nano zero-valentiron.
Owner:广州润方环保科技股份有限公司
Silver nano triangle protection method based on ferrous ions
ActiveCN111515383ASolve pollutionThe solution steps are cumbersomeTransportation and packagingMetal-working apparatusAqueous solutionSilver Nano
The invention relates to a silver nano triangle protection method based on ferrous ions. The method comprises the following steps that a silver nano triangle sheet is prepared and refrigerated and stored; and a ferrous ion solution is added into the silver nano triangle sheet prepared in the step 1, after sufficient mixing and incubation, centrifuging and washing are conducted, solid precipitatesare dispersed into an aqueous solution again, and a silver nano triangle aqueous solution is obtained. According to the silver nano triangle protection method based on the ferrous ions, the stabilityof a silver nano triangle in a complex system is improved while the silver nano triangle is protected rapidly, easily and conveniently in an environment-friendly mode.
Owner:HANGZHOU TINKER BIOTECHNOLOGY CO LTD
Method for removing titanium and oxide skin on alloy surface of titanium
ActiveCN105525298AReduce manufacturing costEasy to industrializeMetallic material coating processesEnvironmental resistanceHigh pressure water
The invention discloses a method for removing titanium and an oxide skin on the alloy surface of titanium. The method comprises the following steps: A1. soaking titanium and an alloy material thereof in a pickling solution; A2. washing titanium and the alloy material thereof with high pressure water or cleaning titanium and the alloy material thereof in an ultrasonic cleaner; A3. putting titanium and the alloy material thereof into a nitric acid and hydrofluoric acid mixed solution for passivation; A4. putting titanium and the alloy material thereof into a borax solution for neutralization, wherein the pH value of the borax solution is not less than 10; A5. washing the neutralized titanium and alloy material thereof with high pressure water; and A6. drying titanium and the alloy material thereof. The pickling solution is prepared by taking sulfuric acid or hydrochloric acid as a pickling medium and adding proper amount of additives including quadri-p-sulfophenyl ferroporphyrin (III) and benzene methanamine. According to the invention, molten alkaline leaching and nitric acid and hydrofluoric acid pickling are not used, and the method has the characteristics of being energy-saving, economical and environment-friendly, and easy to realize industrialization.
Owner:何百寅
Method for measuring permanganate index with phenanthroline-ferrous ion color development method and application
InactiveCN104792780AEasy to quantifyHigh color reaction selectivityMaterial analysis by observing effect on chemical indicatorColor/spectral properties measurementsSodium acetateAnti jamming
The invention discloses a method for measuring a permanganate index with a phenanthroline-ferrous ion color development method. The method comprises the following steps: (1) adding a to-be-measured water sample into a colorimetric tube provided with a plug, adding (1+7) sulfuric acid for acidification, adding a potassium permanganate solution, and shaking uniformly; (2) digesting the water sample in the step (1) under a certain condition and quickly cooling to a room temperature; (3) adding an ammonium ferrous sulfate solution into a digestion solution in the step (2), and shaking uniformly; (4) adding a phenanthroline-sodium acetate aqueous solution into a reaction solution in the step (3) for adjusting the pH (potential of hydrogen) value of a system to be 3-5, and producing a color development reaction; (5) performing absorbance testing on the water sample in the step (4) by zero setting of a reference solution at the wavelength of 510 nm, and calculating the permanganate index of the water sample by a formula IMn=7.666A-0.012, wherein in the formula, IMn is the permanganate index of the water sample and A is the absorbance of the water sample. The measurement method is high in color development reaction selectivity, strong in anti-jamming capability, complete in reaction and simple and convenient to operate.
Owner:北京连华永兴科技发展有限公司
Oxygen evolution reaction electrocatalyst and preparation method thereof
InactiveCN106861699AGood OER activityGood dispersionMaterial nanotechnologyMetal/metal-oxides/metal-hydroxide catalystsNickel saltNitrogen gas
The invention discloses an oxygen evolution reaction electrocatalyst and a preparation method thereof, wherein the preparation method comprises the following steps: under a condition of ice water bath protection, quickly adding a sodium borohydride (NaBH4) solution to a solution I, and carrying out a stirring reaction, wherein the solution I is a ferrous salt solution, or a mixed solution of a ferrous salt and a nickel salt. The method does not need nitrogen gas protection, the equipment requirements are relatively low, and the principle of the method is relatively simple; the reaction is rapid, the preparation is quick, and the electrocatalyst can be produced in quantity in a short time. The catalyst prepared by the method is applied in catalysis of oxygen evolution reaction (OER) under an alkaline condition, shows excellent catalytic activity, has higher OER activity and better stability than commercial IrO2 catalysts, and has low price.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Amorphous calcium carbonate composite nano-medicine with effect of inducing ferroptosis of tumor cells and preparation method of amorphous calcium carbonate composite nano-medicine
ActiveCN111228513APromotes ferroptosisFerroptosis promotionPowder deliveryHeavy metal active ingredientsDendrimerLysosome
The invention relates to an amorphous calcium carbonate composite nano-medicine with an effect of inducing ferroptosis of tumor cells and a preparation method of the amorphous calcium carbonate composite nano-medicine, and belongs to the technical field of medicines. After the composite nano-medicine enters the tumor cells, the degradation of nanoparticles is promoted by means of the acidic environment of lysosomes, meanwhile, the lysosomes are subjected to permeabilization to release doxorubicin and ferrous ions through the protonation of dendrimers, wherein ferrous ions can promote the conversion of polyunsaturated fatty acids of cell membranes to lipid peroxides and induce ferroptosis of the tumor cells, and DOX can promote oxidative stress to increase the content of hydrogen peroxide in the cells while inducing apoptosis, so that iron-dependent ferroptosis caused by lipid peroxidation induced by the ferrous irons is further enhanced. The composite nanoparticles can not only increase the therapeutic effect of tumors, but also reduce the side effects caused by chemotherapy.
Owner:CHONGQING UNIV
Cyano vacant site enriched ferrum-nickel-based metal-organic frame material and preparation method and application thereof
ActiveCN109317205ALowered coordination numberHigh catalytic activityOrganic-compounds/hydrides/coordination-complexes catalystsElectrodesCyanideOxygen
The invention provides a cyano vacant site enriched ferrum-nickel-based metal-organic frame material represented by a formula (I) shown in the description. The invention further provides a preparationmethod of the cyano vacant site enriched ferrum-nickel-based metal-organic frame material. The method comprises the following steps: A) mixing a NiMoO4 nanorod precursor with a solution of a ferrum-cyanide complex, and carrying out a reaction, so as to obtain a ferrum-nickel-based metal-organic frame material, wherein the solution of the ferrum-cyanide complex is a potassium ferricyanide solution, a sodium ferricyanide solution, a potassium ferrocyanide solution or a sodium ferrocyanide solution; B) subjecting the ferrum-nickel-based metal-organic frame material to plasma knockout, thereby obtaining the cyano vacant site enriched ferrum-nickel-based metal-organic frame material represented by the formula (I). According to the cyano vacant site enriched ferrum-nickel-based metal-organic frame material and the preparation method and application thereof, the cyano vacant site enriched ferrum-nickel-based metal-organic frame material has excellent electrochemical oxygen production catalyzing performance.
Owner:UNIV OF SCI & TECH OF CHINA
Blood nourishing body building composition and its production method
A composition for promoting the human hematopoietic function, nourishing blood and making human body stronger is proportionally prepared from ferroheme, SOD powder and folic acid powder.
Owner:覃世元
Detection method for mitochondria damages of nasopharynx mucosae cells
InactiveCN104048961AThe detection method is simpleLow costMaterial analysis by observing effect on chemical indicatorMembrane cellAnalytical chemistry
The invention provides a detection method for mitochondria damages of nasopharynx mucosae cells. The detection method comprises the following detection steps: taking nasopharynx seepage; putting the nasopharynx seepage into a sampling bottle which is prefilled with a buffering solution and uniformly mixing; adding 1ml of a reagent A and 1ml of a reagent B into the sample bottle in sequence; uniformly mixing and observing the color change within two minutes; and comparing a detection result with a colorimetric plate. The detection method is simple and rapid and can be used for detecting the result that the concentration of the lowest free ferrous protoporphyrin can be up to 5ng / ml; the sensitivity is very high.
Owner:QINGDAO BELLO BIOTECHNOLOGY CO LTD
Iron supplementing soft sweets and preparation method thereof
The invention provides iron supplementing soft sweets and a preparation method thereof. The soft sweets are prepared from extract of angelica sinensis, astragalus extract, ferroporphyrin, maltitol, carrageenan, agar, citric acid, malic acid and fruit juice. The preparation method of the iron supplementing soft sweets comprises the following steps: after swelling the agar, adding water to boil out and melt to obtain an agar solution; adding water into isomaltose hypgather to boil out and melt to obtain an isomaltose hypgather solution; adding water into the carrageenan to dissolve to obtain a carrageenan solution; then mixing the agar solution, the isomaltose hypgather solution and the carrageenan solution to form syrup; then adding the extract of angelica sinensis, the astragalus extract, the ferroporphyrin, the citric acid, the malic acid and the fruit juice into the syrup, uniformly stirring, forming, drying and packaging to obtain the iron supplementing soft sweets. The iron supplementing soft sweets provided by the invention have high stability, are difficult to generate water and have good taste, elasticity and good chewiness.
Owner:张振源
Preparation method of magnetic nucleus covered potassium titanium hexacyanoferrate adsorbent and product as well as application
InactiveCN105597661APromote dissolutionIncrease loadOther chemical processesWater/sewage treatmentPotassium ferrocyanideChemistry
The invention discloses a preparation method of a magnetic nucleus covered potassium titanium hexacyanoferrate adsorbent and a product as well as application. According to the magnetic nucleus covered potassium titanium hexacyanoferrate adsorbent and the product as well as the application, the surface of Fe3O4 magnetic powder is first covered with a complete SiO2 protective layer by adopting a two-step reaction method, so that Fe3O4 is difficult to dissolve out in an acidic solution; subsequently, a transitional covering layer TiO2 is prepared under the action of a high temperature, high pressure and vapor by adopting a method of tetrabutyl titanate / alcohol solution immersion and gaseous phase hydrolysis; a Ti<4+> homogeneous-phase hydrolytic action easily occurring in the solution is overcome; the loading capacity and the bonding strength of the TiO2 are improved; finally, potassium ferrocyanide is enabled to react with a TiO2 layer by adopting a method of a surface reaction of a solution phase, a component of a generated active potassium titanium hexacyanoferrate absorbent is enabled to firmly grow on the surface of a magnetic nucleus, and a magnetic nucleus covered potassium titanium hexacyanoferrate caesium-removing adsorbent with magnetism is prepared. Measured through a test, the absorbent has a favorable adsorption removal characteristic to Cs<+>, and is suitably applied to the removal of a radioactive waste liquid, which is smaller in scale and is further strong in dispersity, of a nuclear power plant by adopting a sequencing batch type dynamic adsorption reactor mode.
Owner:TSINGHUA UNIV
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