75results about How to "Strong chelation" patented technology

The invention relates to a poly-gamma-glutamic acid synergistic fertilizer for strengthening fertilizer effect, which belongs to the fertilizer field. The invention comprises graininess fertilizer which comprises the poly-gamma-glutamic acid. The contents of the poly-gamma-glutamic acid and fertilizer in weight are as follows: 0.01 to 1 percent of the poly-gamma-glutamic acid and the remained content is fertilizer. The contents of poly-gamma-glutamic acid of the invention are strictly controlled and the poly-gamma-glutamic acid can be conveniently fertilized. The poly-gamma-glutamic acid is combined with to make full use of the feature as absorption promoter of fertilizer of the poly-gamma-glutamic acid, therefore, crops output is further raised. The fertilizer is released slowly and prolonged by around 4 times compared with the traditional fertilizer in soil. The invention promotes crop absorption and inhibits fertilizer ingredient decomposition and loss, therefore, fertilizer use is directly decreased by more than 20 percent. The pollution to environment is reduced without excessive or inappropriate fertilization.

The invention discloses a composite reagent for deep removal of heavy metals in wastewater and a preparation method thereof. The composite reagent is prepared from the following raw materials in parts by weight: a component A including 20-30 parts of modified attapulgite powder, 30-50 parts of a modified natural high molecular polymer and 0-3 parts of a surfactant; a component B namely an inorganic flocculating agent, wherein the weight ratio of the component A to the component B is (2.5-8.3):1. The composite reagent disclosed by the invention has very strong adsorption, chelating and flocculation performances on heavy metal ions in water, has a plurality of effects of auxiliary reduction of COD (chemical oxygen demand), decoloration, dephosphorization and the like at the same time, and is good in treatment effect, and the preparation method is simple and easy.

The invention provides a bactericidal and anti-bacterial type tableware detergent. The bactericidal and anti-bacterial type tableware detergent is prepared from the following raw materials by weight: 11%-16% of sodium fatty acid methyl ester sulfonate, 8%-12% of alcohol ether carboxylate, 6%-11% of alkyl glycoside, 4%-8% of a bamboo vinegar liquid, 3%-6% of coconut oil fatty acid monoethanolamide, 3%-5% of jasmine extract, 1%-3% of tea saponin, 1%-3% of sodium polyaspartate, 0.8%-3.0% of sodium gluconate, 0.5%-2.5% of salt, and the balance being distilled water. The tableware detergent provided by the invention has significant bactericidal and anti-bacterial effects, can be degraded easily, is safe, environment-friendly and mild, as a maintenance effect for skins, and does not damage the skins.

The invention discloses a cobalt leaching method of a cobalt-leached composite acid based on a synthetic polycrystalline diamond composite sheet. The method comprises the following steps: dissolving an organic acid into distilled water; mixing an inorganic acid 1 with the obtained liquid of the organic acid; mixing an inorganic acid 2 with the liquid obtained from the step 2), so as to prepare the composite acid; and immersing the synthetic polycrystalline diamond composite sheet into the prepared composite acid, and adjusting the dipping temperature to be 25-90 DEG C and the dipping time to be 48-72 hours, so as to prepare the cobalt-leached polycrystalline diamond composite sheet. The abrasive resistance is improved by about 10 times by a test; due to the adopted cobalt leaching method of the composite acid, the metal cobalt in the polycrystalline diamond composite sheet is efficiently and safely removed without pollution; and the cobalt leaching method has the advantages of large cobalt leaching depth, low cost and obvious economic benefits.

The invention provides a heavy metal ion adsorbent which contains nucleuses, polyamidoamine dendrimers grafted to the nucleuses through a silane compound and polyanions absorbed to the polyamidoamine dendrimers. The nucleuses are silicon dioxide coated ferroferric oxide. In the heavy metal ion adsorbent, the polyamidoamine dendrimers are absorbed with a layer of polyanions through electrostatic attraction, polyanions and especially the configuration of DNA is not changed, it is ensured that the outermost-layer polyanions can produce strong chelation with heavy metal ions during absorption, and accordingly the heavy metal ions in a water body are effectively removed. The heavy metal ion adsorbent is small in particle size and large in specific surface area. Furthermore, the polyamidoamine dendrimers with spherical structures can be further grafted to the polyamidoamine dendrimers and then the polyanions are absorbed to the polyamidoamine dendrimers, so that the heavy metal ion adsorbent is good in absorption effect and high in repeating utilization rate. In addition, the nucleuses in the heavy metal ion adsorbent are magnetic, so that separation is facilitated.

The invention relates to a special strawberry composite biological fertilizer as well as a preparation method and application thereof. The special strawberry composite biological fertilizer comprisesthe following components: EDTA-Ca (Ethylene Diamine Tetraacetic Acid), magnesium sulfate heptahydrate, EDTA-Mg, heptahydrate, EDTA-Zn, manganese sulfate monohydrate, EDTA-Mn, boric acid, EDTA-Fe, EDTA-Cu, soybean molasses, polyglutamic acid fermentation broth, chitosan oligosaccharide, algin, compound amino acid, humic acid, bacillus thuringiensis fermentation broth, bacillus megatherium fermentation broth, bacillus mucilaginosus fermentation broth and streptomyces jingyangensis fermentation broth. Through bacterium activation, seed liquid preparation, fermentation culture and compounding, thecomposite biological fertilizer is prepared, the composite biological fertilizer is applied to strawberry planting, and a diluted composite biological fertilizer liquid is sprayed at different growthstages of strawberry respectively. Due to synergetic effects of substances such as inorganic salts, organic matters and microorganisms, long lasting nutrient substances are provided to strawberry crops, absorption of nutrients in soil by plants is promoted, the fertilizer amount is reduced, and the chemical fertilizer cost is reduced.

The invention discloses glass polishing powder cleaning agent and a preparation method thereof. The cleaning agent comprises the following components in percentages by mass: 0.16-0.3% of a flocculating agent, 20-30% of inorganic base, 18-30% of a chelator, 39.7-61.84% of deionized water. The glass polishing powder cleaning agent has a reasonable formula, and has good chelating capability for cerium dioxide, silicon dioxide, and aluminium oxide, the qualified rate of cleaned products is 95% or above, and the cleaning effects are good; at the same time, flocculation effects of a flocculating agent are used, so that dust particles which are separated from the surface of a base material rapidly coagulate into large particle agglomerates in cleaning fluid, dust particle dissolvability in the cleaning fluid is reduced, service life of the cleaning fluid is greatly prolonged, cost is further reduced, and wide promotion and applications are promoted. The method has the advantages of simple preparation technology, easy realization, and high production efficiency, and the glass polishing powder cleaning agent product with good cleaning effects can be rapidly prepared with high efficiency.

The invention discloses a modified water-soluble chitosan flocculating agent and a preparation method thereof. The preparation method comprises the following steps: a carboxymethyl reaction step: dispersing chitosan into a mixed solution of isopropanol and sodium hydroxide, stirring for alkalization so as to obtain a reaction mixture, dissolving monochloro acetic acid into isopropanol to obtain asolution, dropwise adding the solution into the reaction mixture, reacting for 3-5 hours, adding an ethanol water solution to terminate the reaction, washing, and drying, so as to obtain carboxymethylchitosan; and a cross-linking reaction step: dissolving carboxymethyl chitosan into hydrochloric acid, adjusting the pH value to 5, dissolving 3,4-dihydroxyphenylacetic acid into a certain amount ofwater to obtain a solution, adding the solution into a carboxymethyl chitosan solution, dissolving a mixture of EDC and NHS into mixed liquid of water and ethanol to obtain a solution, adding the solution into a reaction solution, adding hydrogen peroxide into the reaction solution, stirring to maintain the pH value of the reaction solution at 4.5-5.0, and reacting at the room temperature for 9-11hours, so as to obtain the modified water-soluble chitosan flocculating agent. The flocculating agent disclosed by the invention has good water solubility and flocculating property.

The invention relates to a red mud composite fertilizer and a preparation method thereof. By weight, the red mud composite fertilizer comprises 60-70 parts of red mud, 3-5 parts of a red mud activator, and 30-40 parts of a nitrogen phosphorus and potassium compound fertilizer, wherein the mass ratio of N, P2O5 and K2O in the compound fertilizer is 1:0.3-0.6:0.3-0.5. The red mud activator comprises, by weight, 30-40 parts of activated carbon, 50-60 parts of medical stone, 15-20 parts of bamboo fiber, 5-6 parts of phytase, 2-3 parts of magnesium sulfate, 1-2 parts of zinc chloride and 5-10 parts of polyacrylamide. The red mud composite fertilizer has comprehensive nutrition, contains more than 40 nutrient elements, and can comprehensively supply nutrients needed by crops. The water stability of the product is increased by more than 10 times. The product has very strong chelation, adsorption and ion exchange capacity to nutrient elements, can enrich and store the nutrient elements in soil and fertilizers, coincides with crops' need for fertilizers and has slow release performance, and achieves ''on-demand supply'' or ''on-demand release'', thereby overcoming the contradiction between rapid fertilizer loss and slow crop absorption.

The invention discloses a compound sponge for heavy mental sewage disposal and a preparation method thereof. The compound sponge is a porous reticulated compound sponge which adopts gelatin and a cysteine compound as substrates, carboxymethyl chitosan and a polymer of acrylic acid and acrylamide as grafting branches and limestone as a pore-foaming agent and a crosslinking agent. The compound sponge is specifically prepared from, by weight, 10-20 parts of gelatin, 15-30 parts of cysteine, 15-30 parts of mercaptoacetic acid, 50-150 parts of carboxymethyl chitosan, 18-50 parts of acrylamide, 36-100 parts of acrylic acid and 10-26 parts of limestone. The source of raw materials of the compound sponge is wide, and the compound sponge has the advantages that the cost is low and no secondary pollution can be caused to water. Moreover, the preparation process is simple and easy to implement, the removal rate of heavy metal in high-concentration heavy metal pollution sewage reaches 99% or above, and the effect of efficiently disposing the heavy metal pollution sewage at the low cost is achieved.

The invention relates to a fertilizer synergistic agent. The fertilizer synergistic agent consists of a calcium silicon fertilizer, mixed raw ore powder and an activating agent. When in use, the fertilizer synergistic agent is mixed with a nitrogen, phosphorus and potassium composite fertilizer to form a base fertilizer or an additional fertilizer so as to comprehensively provide needed nutrients for the growth and development of crops. The fertilizer synergistic agent can improve the functions of physiological activity, nutrition and metabolism of plants, promote the formation of growth hormone and adjust the activity of enzyme. The product has strong capability of adsorption, chelation and ion exchange, can enrich nutritive elements of soil and the fertilizer and is slowly released according to the requirement of the needed fertilizer of the crop, thereby improving utilization rate and effective utilization period of the fertilizer, improving bioavailability of the fertilizer, reducing use amount of the fertilizer and the times of fertilization, promoting development and activity of a root system, strengthening photosynthetic capacity and immunity of the plant, improving the capability of adverse resistance, improving comprehensive quality of the product, increasing yield, purifying soil environment and improving ecological condition.

The invention discloses boron adsorption resin containing difunctional groups and a preparation method thereof. The boron adsorption resin containing the difunctional groups is characterized in that the boron adsorption resin containing the difunctional groups is prepared by the reaction of halogenated acylation resin and amino sugar. The carrying quantity of the difunctional groups of the boron adsorption resin prepared by the method is 0.1 to 2.8mmol / g, and the preparation process of the resin is safe and simple. The difunctional groups of alpha-glycyl and orthohydroxy group in the resin generate a synergistic action, the functions of adsorption and chelation of the resin to boron are enhanced, and the resin can replace the traditional boron-specific resin.

The invention discloses a liquid urea for vehicles and a preparation method thereof. The liquid urea comprises following components in percentage by weight: 32.5% of urea solution, 5 to 7% of methanol, 4 to 6% of ammonium formate, 5 to 8% of ammonium sulfate, 2 to 4% of alkyl phenol polyoxyethylene, 5 to 8% of propylene glycol, 2 to 5% of polyoxyethylene stearate, 5.5 to 8% of chelating agent, and21.5 to 39% of deionized water. The formula of provided liquid urea is reasonable, ammonium formate and ammonium sulfate will promote the degradation of urea to generate ammonia gas, moreover, ammonium formate, ammonium sulfate, and ammonia gas can generate a synergistic effect to greatly improve the conversion rate of catalytic reduction of NOx; methanol, propylene glycol, and polyoxyethylene stearate can improve the compatibility; the anti-freezing performance of the liquid urea is good, the stability is high, the application range is largely enlarged; the chelating agent has a strong chelating performance for all raw materials, NOx in tail gas can be radically processed, the processing effect is good, and the urea is environmentally friendly.

The invention belongs to the technical field of plant nutrient soil, and provides compound nutrient soil for pot plants. The compound nutrient soil is prepared from, by weight, 40-60 parts of pond sludge, 3-12 parts of sepiolite, 5-10 parts of sawdust, 10-15 parts of attapulgite, 5-9 parts of chitosan, 5-11 parts of wormcast, 2-7 parts of compound microorganisms, 1-3 parts of rapeseed dregs, 2-8 parts of calcium superphosphate, 1-3 parts of potassium sulphate, 1-3 parts of rooting power and 0.8-2.1 parts of natural preservative. The compound nutrient soil for the pot plants overcomes the deficiency of existing nutrient soil, and meets the nutrient demand of growth and safety demand of the growth environment of the pot plants, the component and content of the compound nutrient soil are reasonably prepared, and the compound nutrient soil is high in breathability and full in nutrition, resists and prevents bacteria, improves the growth of roots and seedlings, can prevent flower diseases and insect damage, and can promote the healthy growth of the plants.

The invention discloses a preparation method of an amino acid water-soluble fertilizer containing polyaspartic acid. The method solves the problem of poor prevention and treatment effect of current foliar fertilizer. The method comprises the following steps: 1) collecting and storing the nim leaves, adding a decomposition agent for fully fermenting and treating; 2) adding water in fermented nim leaves, stirring for 1-2 hours and leaching and then centrifuging, collecting a filtrate; 3) adding strong acid in the filtrate and hydrolyzing for 15-22 hours under the temperature of 40-80 DEG C to obtain an amino acid mother liquor; 4) adding trace elements and a conditioning agent in the amino acid mother liquor in a reaction vessel for fully chelating; and 5) detecting and packing to obtain the product. The amino acid water-soluble fertilizer containing polyaspartic acid has a plurality of biological activities such as insecticide and sterilization; has no harm to higher animal, is safe to natural enemy of insects, and has the advantage of no residues on plant.

The invention belongs to the technical field of new materials, and particularly relates to a sulfur-containing porous organic polymer material LNUs, a preparation method and applications thereof. Thepreparation method comprises: placing a benzene ring-containing compound and thiophene-2,5-diboronic acid dipinacol ester in a reaction container, and adding N,N'-dimethylformamide; freezing with liquid nitrogen, vacuumizing by an oil pump, introducing nitrogen until achieving a normal pressure, and repeatedly circulating three times; rapidly adding a 2M potassium carbonate aqueous solution and acatalyst to the reaction system, freezing with liquid nitrogen, vacuumizing by an oil pump, introducing nitrogen until achieving a normal pressure, and repeatedly circulating three times; carrying outa reaction after thawing; and after completing the reaction, cooling to a room temperature, filtering, washing, placing the washed solid in a Soxhlet extractor, respectively carrying out Soxhlet extraction 36 h with tetrahydrofuran and dichloromethane to remove the remaining reactants or catalyst in the product, and carrying out vacuum drying to obtain the solid powder, ie., the target product LNUs. According to the present invention, the product can be used for selectively detecting heavy metal mercury ions in sewage.

The invention provides an agricultural and forest water retaining agent with efficient water retention performance and a preparation method. The water retaining agent is prepared from components in percentage by weight as follows: 15%-35% of modified starch, 30%-50% of acrylic acid, 5%-17% of polyvinyl acetate, 15%-40% of sodium hydroxide, 3%-9% of a sodium lauryl sulfate solution, 0.1%-0.35% of ammonium persulfate, 0.1%-0.8% of sodium thiosulfate and 0.2%-0.65% of ethylene glycol. The prepared water retaining agent has good salt tolerance and pressure resistance, the use period is three years or longer, furthermore, the water retaining agent contains multiple elements such as C, O, H, N, K and the like which are quite beneficial to plant growth and soil and water conservation as well as chemical bonds and groups consisting of the elements, has good mixing performance with farmyard manure, chemical fertilizer, soil, fine sand and the like and has good water absorption performance, water retention performance and water releasing performance, a product is non-toxic and harmless to humans, animals and plants, and a special function group in a network molecule structure of the product has strong complexing and chelating effects on toxic metal ions such as pb, cd, hg and the like, so that a water source of a soil environment is purified.

The invention discloses a preparation method of liquid acidic pectinase with strong stability, and belongs to the technical field of preparation of enzyme preparations. The preparation method of the liquid acidic pectinase with strong stability does not need addition of a chemical preservative and low-temperature treatment, and the liquid acidic pectinase with strong stability, which is stable and has a relatively long quality guarantee period, can be obtained by fermenting a crude enzyme solution and blending a concentrated solution by adopting a high-voltage pulse electric field at normal temperature, adding natural plant raw materials including a pectin decomposed product, a Chinese medicinal herb extract, modified dietary fibers and the like during blending, and then performing aseptic filtration and sterile filling. Experiments prove that the liquid acidic pectinase with strong stability, prepared by the method disclosed by the invention, has the total number of bacterial colonies of 75-110CFU / mL after being stored for 12 months at room temperature; and the enzyme activity loss rates of the liquid acidic pectinase which is stored for 12 months at 40 DEG C and 0 DEG C are 1.2-1.4% and 0.5-1.1% respectively.

The invention belongs to the technical field of biology, and discloses a method for enhancing extraction of heavy metal in a farmland by sugarcane through root system secretion. The method includes the following steps of firstly, planting a proper species of sugarcane in the farmland with the heavy metal (cadmium) exceeding the standard; secondly, dissolving oxyl hydroximic acid in water to form asolution with the concentration of 0.01-0.1 mM, and applying the solution in the elongation period of the sugarcane according to the spraying amount of 10-15 t / mu; thirdly, conducting spraying for 7-15 days, measuring soil, and complementarily spraying a sodium oxyl hydroximic acid salt water solution 1-2 times if the activity of cadmium in the soil is low; fourthly, harvesting the sugarcane andremoving the sugarcane plant out of the farmland. By adding the oxyl hydroximic acid, the oxyl hydroximic acid has a quite high chelating effect on the heavy metal under the alkaline environment, andthe migration of the heavy metal in the soil and a plant body is promoted; the oxyl hydroximic acid is the secretion generated by microorganisms, and ferrite with the quite high complexing capacity onthe heavy metal causes no toxic harm to the environment, is quite easy to degrade and has quite high practicability in farmland environment, agricultural production and the like.

The invention relates to a mercury ion adsorbing material prepared from swill-cooked dirty oil and diatomite, wherein the mercury ion adsorbing material is prepared from swill-cooked dirty oil, diatomite and sublimated sulfur as raw materials and through pickling, impurity removal and addition of a pore-making agent. The raw materials are added according to the following weight ratio: 3-9 parts ofsublimated sulfur, 1-6 parts of swill-cooked dirty oil and 1-3 parts of diatomite. After the components are subjected to reaction, the actually measured mercury ion adsorbing amount can reach 50-80 mg / g. The cheap diatomite and swill-cooked dirty oil are directly used as raw materials, molten sulfur is used as a solvent and NaCl is used as the pore-making agent, and the process has the advantagesof abundant required raw material sources, simple preparation process and cost saving; the adsorbent has strong acid and alkali resistance abilities, is easy to use, and is suitable for adsorption ofmercury ions in industrial wastewater.

The invention provides an anti-scaling agent special for a seawater and brackish water desalination reverse osmosis membrane and a preparation method of the anti-scaling agent. The anti-scaling agent mainly comprises sodium hypophosphite, acyclic acid, 2-acrylamide-2-methylpro panesulfonic acid, ammonium persulfate and deionized water in a chemical combination manner; the anti-scaling agent is applied to a reverse osmosis system, is a water treatment medicament used for solving the scaling of the reverse osmosis membrane in the seawater and brackish water desalination process and has the high-effective chelation and dispersion effects, so that the scaling of various ions can be effectively prevented. The anti-scaling agent contains amide groups, and the amide groups are the same with functional groups of a reverse osmosis membrane element, can be compatible with the reverse osmosis membrane element and has the synergism effect. The anti-scaling agent can be compatible with other medicaments, such as a flocculating agent-aluminium polychlorid, and a reducing agent-sodium hydrogen sulfite, which are frequently used in the reverse osmosis system, and can not influence the use of the other medicaments; and the anti-scaling agent has the obvious effect on the preventing of the scaling of barium sulfate, strontium sulfate and the like.

The invention relates to a preparation method of a slow-release microcapsule antifouling material, and belongs to the technical field of environment-friendly materials. The slow-release microcapsule antifouling material is prepared by adopting a complex coacervation method. According to the complex coacervation method, two wall materials with dissimilar charges in a solution are mutually cross-linked through electrostatic interaction among ions to obtain a microcapsule of a composite wall material, the action principle is that a positively charged wall material solution is mixed with another negatively charged wall material solution, coacervates are formed through interaction of positive charges and negative charges, separated and deposited around a core material, and the microcapsule is obtained by coating the core material. When the numbers of positive charges and negative charges carried by the two substances are equal, the yield of the microcapsule is the maximum. The preparation of the microcapsule by the complex coacervation method needs the three stages of wall film formation, deposition and cross-linking curing, the embedding rate of the core material is very high, the formed wall film is high in compactness and good in slow release effect, and the anti-fouling agent can be effectively prevented from falling off.

The invention discloses an interworking ligand, a hydroformylation catalyst and a preparation method of dihydric alcohol. The interworking ligand comprises a ligand unit I and a ligand unit II, has the characteristics of a bidentate phosphine ligand, and is high in catalytic activity and good in stability; and when the catalyst is used for preparing dihydric alcohol from olefin, linear alcohol can be obtained through a one-step method, and the content of by-products in a traditional series process is reduced. The method has the advantages of simple and convenient process, low cost and energy consumption, good production safety, high product quality and the like, and is particularly suitable for large-scale industrial production.

The invention relates to the anti-sticking agent technical field, and particularly relates to a metal surface treatment anti-sticking agent prepared from the following raw materials in parts by weight: 8-16 parts of hydroxyl silicone oil, 10-20 parts of polyaspartic acid, 5-10 parts of alkyl glycoside, 8-18 parts of polytetrafluoroethylene, 5-10 parts of polyamideimide resin, and 10-20 parts of deionized water. The metal surface treatment anti-sticking agent is reasonable in composition, obvious in effect and stable in chemical properties, can effectively prevent adhesion between layers of a metal strip, and also has the function of corrosion resistance; the metal product surface quality is bright and clean; and the anti-sticking agent has good levelling property and thixotropy, meets processing at various temperatures, and can be used for a long time.

The invention relates to stain-removing and whitening toothpaste and a preparation method thereof. The stain-removing and whitening toothpaste is prepared from the following raw material components inparts by weight: 40 to 50 parts of a humectant, 4 to 6 parts of a thickening agent, 33.8 to 44.3 parts of a stain-removing and whitening agent, 6 to 15 parts of water and 0.5 to 2 parts of essence. The stain-removing and whitening agent comprises the following raw material components: hydrated silica, baking soda, sodium phytate, silicon dioxide and titanium dioxide. According to the stain-removing and whitening toothpaste disclosed by the invention, the stain-removing and whitening combined agent component consisting of a plurality of raw materials is added, so that stains on the surfaces ofteeth can be effectively removed and pigmentation on the surfaces of the teeth is reduced while the teeth are cleaned, and therefore, a remarkable tooth whitening effect is achieved. The raw materials are high in human body use safety, the preparation process is simple, the quality is stable and controllable, and the toothpaste is suitable for popularization and utilization.

The invention relates to a special humic acid fertilizer for a yellow eucalyptus. According to the special humic acid fertilizer, a fertilizer, humic acid, a kelp microbial fermentation fertilizer and a rhubarb extract are matched for use; the growth efficiency of the yellow eucalyptus can be significantly improved; the yield is increased; the use amount of the fertilizer us reduced; and the special humic acid fertilizer has an effect of improving soil.

The invention discloses edible blend oil and a preparation method thereof, which belong to the field of edible oil. The edible blend oil is prepared from the following raw materials: pine nut oil, peony seed oil, wheat germ oil, sunflower seed oil, sesame oil, lycopene, butyl hydroxy anisd, tocopherol, sodium citrate, cyclohexanol phosphate ester and additives. The edible blend oil is prepared inthe steps of extraction, ultrasonic treatment, mixing, vacuum treatment and the like. By adding the tocopherol, the sodium citrate, the cyclohexanol phosphate ester and the additives to form a reinforcing system, the acidity and a peroxide value of the edible oil can be reduced.

The invention relates to the technical field of skin radioactive contamination treatment, and provides a decontamination wet tissue for radionuclide contaminated skin and application. The decontamination liquid is prepared from the following components in percentage by weight: 0.5 to 10 percent of disodium ethylene diamine tetraacetate, 0.5 to 10 percent of dimethyl(tetradecyl)amine oxide, 0.5 to 10 percent of sodium laureth sulfate, 0.5 to 10 percent of sodium bicarbonate, 0.1 to 10 percent of sodium alginate, 0.5 to 10 percent of phenoxyethanol and the balance of deionized water. The method for decontaminating the radionuclide contaminated skin comprises the following steps: step 1, unfolding a decontaminating wet tissue, flatly placing the decontaminating wet tissue on the skin, slightly squeezing the decontaminating wet tissue, wiping the skin from a low-pollution area to a high-pollution area in a single direction, folding the decontaminating wet tissue, wiping the skin by using a cleaning surface of the wet tissue, folding the decontaminating wet tissue again, and treating the decontaminating wet tissue in the same way; and step 2, repeating the step 1 on the same piece of skin by adopting three to four pieces of decontamination wet tissues in sequence to complete radionuclide decontamination treatment on the piece of skin.

The invention provides an organic-inorganic composite heavy metal ion catching agent. The catching agent is prepared by well mixing 10-25 parts of chitosan modified polyacrylamide in mass, 20-35 partsof organic activated montmorillonite in mass, 5-15 parts of algin in mass, 8-15 parts of sodium tripolyphosphate in mass, 5-10 parts of citric acid in mass, 5-15 parts of ethylenediamine disuccinic acid in mass, 10-20 parts of EDTA in mass and 1-3 parts of NaOH in mas, microwave heating the mixture for 2-4 hours at 60-80 DEG C and then cooling the mixture, and grinding and crushing the mixture to50-100 meshes. According to the catching agent, the characteristics of both organic and inorganic macromolecules are achieved at the same time, the two effects of flocculation and turbidity removal and heavy metal removal can be achieved at the same time, and the advantages of large flocs, high chelating capacity, high removal efficiency, wide application range, safety and environmental protection and the like are achieved.

The invention relates to a molecularly-imprinted monolithic column modified and enriched through benzoylation as well as preparation method and application of the molecularly-imprinted monolithic column. According to the molecularly-imprinted monolithic column modified and enriched through benzoylation, a synthesized benzoylation-modified peptide SGRGKbz is used as a template, zinc acrylate and DESs monomers (choline chloride-methacrylic acid and ChCl-MAA) are selected as binary functional monomers, and the imprinted monolithic column which is high in recognition capacity, high in selectivity and high in affinity is prepared. The imprinted monolithic column prepared by using the method disclosed by the invention has a high recovery rate of SGRGKbz, and the recovery rate can reach 97.3%; and 12 benzoylation-modified peptide fragments can be detected after mouse liver protein enzymatic hydrolysate is enriched by the imprinted monolithic column, and only one benzoylation modified peptide fragment is detected when the mouse liver protein enzymatic hydrolysate is not enriched. The imprinted monolithic column prepared by the invention can realize specific enrichment of benzoylation-modified peptides, provides a new choice for benzoylation modification and enrichment, and has very important significance for research of benzoylation modification proteomics.