396 results about "Potassium iodate" patented technology

The invention discloses a goat forage and a preparation method thereof. The goat forage is composed of the following raw materials, by weight, 50-60 parts of sorghum straw powder, 25-30 parts of Chenopodium album Linn. powder, 20-30 parts of pine leaf, 10-15 parts of Lolium perenne L., 15-20 parts of bagasse, 8-12 parts of Herba Taraxaci, 15-25 parts of soybean meal, 1-2 parts of a starter, 40-50 parts of corncob, 15-25 parts of rice bran, 10-15 parts of sunflower receptacle, 4-6 parts of a lyophilized powder additive, 3-5 parts of shell powder, 5-10 parts of zeolite powder, 3-5 parts of soybean oil, 2-4 parts of sodium alginate, 0.5-0.8 parts of calcium hydrogen phosphate, 0.01-0.02 parts of potassium iodate and 0.3-0.5 parts of salt. The forage contains all nutrition required by the growth of goats, guarantees the healthy production of the goats, provides healthcare values, and raises the growth speeds of the goats.

The present invention discloses one kind of Povidone-iodine spraying agent, and features that the Povidone-iodine spraying agent consists of active component Povidone-iodine, potassium iodate and / or potassium iodide, glycerine and / or propylene glycol, corrective and water. It is stable in quality, has no irritation to skin and mucous membrane and is suitable for oral taking to prevent and treat bacterial, fungal and viral infection.

The invention discloses a mutton sheep forage and a preparation method thereof. The mutton sheep forage is composed of the following raw materials, by weight, 55-65 parts of soybean straw, 30-40 parts of Gaodan grass, 20-30 parts of elm tree leaf, 15-20 parts of peanut vine, 10-15 parts of a traditional Chinese medicinal residue, 5-10 parts of fried rice flour, 10-20 parts of distillers' grain, 1-2 parts of a starter, 45-55 parts of corncob, 20-30 parts of wheat bran, 15-20 parts of rice bran, 5-7 parts of a lyophilized powder additive, 4-6 parts of chalk powder, 5-10 parts of kaolin, 3-5 parts of soybean oil, 2-4 parts of sodium alginate, 0.5-1 part of calcium hydrogen phosphate, 0.01-0.02 parts of potassium iodate and 0.3-0.5 parts of salt. The forage contains all nutrition required by the growth of mutton sheep, guarantees the healthy production of the mutton sheep, provides healthcare values, and raises the growth speed of the mutton sheep.

The invention discloses a mutton sheep forage and a preparation method thereof. The forage is composed of the following raw materials, by weight, 50-60 parts of a wheat straw, 25-35 parts of bur clover, 20-25 parts of sugarcane top, 8-12 parts of clover, 10-20 parts of a beet pulp, 10-15 parts of vinegar residue, 15-25 parts of Snakegourd Fruit peel, 1-2 parts of a starter, 45-55 parts of corn flour, 20-30 parts of wheat bran, 10-15 parts of fried wheat flour, 4-6 parts of a lyophilized powder additive, 3-5 parts of fried rice flour, 5-10 parts of attapulgite, 3-5 parts of soybean oil, 0.001-0.002 parts of sodium selenite, 0.2-0.3 parts of calcium carbonate, 0.01-0.02 parts of potassium iodate and 0.3-0.5 parts of salt. The forage contains all nutrition required by the growth of mutton sheep, guarantees the healthy production of the mutton sheep, provides healthcare values, and raises the growth speed of the mutton sheep.

The invention relates to a chicken forage formula which can improve selenium-iodine egg, and relative production, wherein it is formed by energy forage as corn and fat, protein forage as soybean cake, mineral forage as stone powder, calcium hydrogen phosphate, and common salt, nourishment forage additive as lycine, acimetion, vitamin, composite vitamin, and seaweed powder, and mineral microelement. And its production comprises that: a, mixing sodium selenate, potassium iodate and oligose; putting calcium hydrogen orthophosphate, seaweed powder, acimetion, lycine, vitamin, mineral microelement as copper, manganese, iron, and zinc, into ceramic pot to be mixed uniformly; b, breaking vegetable oil and corn; c, putting, corn powder, soybean, calcium stone powder, and forage additive, input forage mixer to be mixed for 10-15min, to produce the egg chicken forage. Said egg can improve physical quality.

The invention discloses a povidone-iodine disinfectant and a preparation method thereof. The povidone-iodine disinfectant comprises povidone-iodine (PVP-I), potassium iodate and potassium iodide. Critic acid and sodium hydroxide are used for adjusting the pH of a solution. The povidone-iodine solution contains potassium iodate and potassium iodide, and under an acid environment, a reaction of IO3<->+5I<->+H<+>=3I2+3H2O exists in the solution. Effective iodine concentration in the solution is increased, active iodine is promoted to be released slowly, and disinfecting time of the povidone-iodine disinfectant is prolonged.

The invention discloses a graphene-nickel-phosphorus chemical plating liquid, and a preparation method and an application thereof. Each liter of the graphene-nickel-phosphorus chemical plating liquid comprises 0.25-1g of graphene, 20-25g of nickel sulfate, 15-20g of sodium hypophosphate, 15g of sodium acetate, 8-10g of citric acid, 4ml of lactic acid, 4ml of propionic acid, 41mg of a composite stabilizer, and the balance distilled water; and the composite stabilizer is composed of thiourea, potassium iodate and potassium iodide, and a mass ratio of thiourea to potassium iodate to potassium iodide is 1:20:20. The preparation method of the chemical plating liquid comprises the following steps: sequentially adding graphene, nickel sulfate, sodium hypophosphate, sodium acetate, citric acid, lactic acid, propionic acid and the composite stabilizer into distilled water for dissolving, and adjusting the pH value of the obtained solution to 4.2-5.6 to obtain the graphene-nickel-phosphorus chemical plating liquid. The graphene-nickel-phosphorus chemical plating liquid can be used for plating the surface of a steel alloy workpiece to form a nickel-phosphorus-graphene chemical composite coating having a good wear resistance and a high hardness.

The invention provides a formulation of medium-temperature acidic electroless nickel-phosphorus alloy, which is characterized in that the formulation is as follows: 25 to 30 grams of nickel sulfate per liter, 25 to 35 grams of sodium hypophosphite per liter, 12 to 18 grams of sodium acetate per liter, 0.5-1.3 milligrams of thiourea per liter, 7 to 13 milliliters of lactic acid per liter, 7 to 13 milliliters of acetic acid per liter, 4-10 grams of organic acid per liter, 5-16 milligrams of potassium iodide or potassium iodate per liter, and the loadage is between 0.5 and 1.5 dm<2> / L. The invention has the advantages that: the formulation improves the stability of a plating solution, obviously improves plating rate, has good corrosion resistance and the comprehensive properties of plating; the stability of the plating solution can reach over 1800 s; the stability of periodic experiments is more than ten periods; the corrosion resistance of the plating reaches over 130 s; and the hardness of the plating reaches 480 HV.

The invention relates to a re-crystallization preparation method of bamboo salt and belongs to the field of a health-care product. The method comprises the following process steps of: preparing fresh bamboo juice: baking fresh phyllostachys pubescens which is cut into small blocks and putting the blocks into a water bath to be immersed by ethanol or hot water; preparing primary bamboo salt: adding the fresh bamboo juice into table salt without iodine and an anti-caking agent and mixing uniformly; carrying out re-crystallization to prepare the bamboo salt: adding the primary bamboo salt into each biennial phyllostachys pubescens section with the length of 50-60cm and reserved with a bamboo section; sealing each opening of the biennial phyllostachys pubescens section by deep yellow mud with the depth of being less than 5m; adding into a high-temperature smoldering furnace to carry out high-temperature calcination in a step temperature-raising manner to carry out re-crystallization reaction; and preparing a bamboo salt product: taking out a bamboo salt rod and removing surface bamboo ash; and crushing to obtain the bamboo salt product. Potassium iodate is added into the bamboo salt product to prepare the iodine-added bamboo salt product. The re-crystallization preparation method has a simple process and is easy to control; the prepared product has the natural alkalinity and has abundant minerals and microelements; and the product is low in impurity content and stable in quality, and has good anti-oxidization and toxin expelling effects.

The invention relates to antisepsis and anti-inflammation medicaments, and particularly relates to high-content liquid povidone-iodine. The liquid povidone-iodine is prepared from the following raw materials in percentage by weight: 5.2-12.24 percent of iodine, 10-24 percent of polyvinylpyrrolidone, 2-4.8 percent of potassium iodide, 0.1-0.24 percent of potassium iodate, 15-36 percent of ethanol and the balance of water. The high-content liquid povidone-iodine is a reddish brown viscous liquid, is easily dissolved in water, has stable performance, strong sterilization efficacy and no irritation, is suitable for sterilization of operating parts and skin-mucosa or sterilization of aquatic water, can be used for preventing and treating bacteriosis of aquatic animals caused by vibrio, aeromonas hydrophila, edwardsiella tarda and the like and sterilizing the environment of livestock and poultry housings, plays a role in killing multiple bacteria, spores, viruses, fungi and the like, thus being a good iodine containing medical bactericide and epidemic prevention sanitizer.

The invention relates to a preparation method of a high-gloss catalytic-activity bismuth oxyiodide crystal, which comprises the following steps: adding bismuth nitrate into deionized water to prepare a solution, adding potassium iodate into the solution, stirring, transferring into a teflon-lined high-pressure autoclave, reacting at 150-160 DEG C for 5-12 hours, naturally cooling, separating by vacuum filtration, washing, and drying to obtain the product. The crystal prepared by the method provided by the invention is composed of very thin nanosheets, has laminated structure and intrinsic polarization field, has high photon-generated electron and hole separating power and excellent photocatalytic activity, and can effectively degrade organic pollutants.

The invention discloses iodine disinfection liquid and a preparation method thereof. The iodine disinfection liquid comprises the following medical raw materials in proportion by weights: 4-65 g of povidone iodine, 0.05-0.15 g of potassium iodate, 4-8 g of sodium dihydrogen phosphate, 1-3 g of disodium hydrogen phosphate, suitable amount of 10% sodium hydroxide and purified water added to 1000 mL. The iodine disinfection liquid disclosed by the invention is suitable for skin disinfection and mucous membrane (oral cavity and the like) disinfection, disinfection of surgical hand washing and healthy hand washing, disinfection of fire burn and wound and disinfection of surfaces of common objects. The iodine disinfection liquid disclosed by the invention has the advantages of low skin irritation, low toxicity, action durability, safety, convenience and simpleness for use as well as steady quality.

The invention discloses a method for preparing refined salt without an antitackiness agent. The method comprises the following processing steps of: collecting and treating brine, evaporating, crystallizing, washing salt slurry, drying, cooling and screening; when needing to iodize, uniformly adding 3 to 5 mass percent solution of potassium iodate into a wet salt production line after dehydrating the salt slurry to make the iodine content of finished product salt be between 20 and 50mg / kg. In the method, no antitackiness agent is added into the salt, so the salt fully meets the standards of national GB2760 'Hygienic Standard For Uses of Food Additives' and NY / T1040 'Green Food-Edible Salt', and has good anti-agglomerating effect, regular crystal form and uniform granularity; the Mg<2+> content is 40 mg / kg and is far lower than the stipulation of the NY / T1040 'Green Food-Edible Salt' standard; and a product has no obvious agglomeration phenomenon after being stored for 12 months.

The invention relates to a medical environment-friendly sterilization ultrasound coupling agent and a preparation method thereof, wherein the ultrasound coupling agent comprises the components based on the parts by weight: 5-30 parts of corn starch, 2-2.5 parts of 30% of hydrogen peroxide, 0.04-0.08 part of ferrous sulphate, 2-2.5 parts of sodium hydroxide, 1.2-1.5 parts of sodium borate, 0.10-2.00 parts of iodine, 3.00-20.00 parts of fatty alcohol-polyoxyethylene ether, 0-1.00 part of potassium iodide, 0-1.00 part of potassium iodate, 1.00 part of glycerin, 0.20 part of citric acid and 60-78parts of water. When being used for ultrasonic detection, the ultrasound coupling agent ensures the detection image to be clear and the cross infection risk which is possibly caused by the ultrasonicdetection to be little, does not swell and corrode an ultrasonic probe, can be degraded so as to be free from environmental pollution, and has the characteristic of strong environmental conservation property. The ultrasound coupling agent prepared by the method has the advantages of wide source of raw materials, good environmental conservation property, low price, simple preparation working procedures and low equipment investment.

The invention discloses a carp feed and a preparation method thereof. The carp feed is obtained through the following steps: grinding fish meal, puffed corn flour, soybean lecithin, brewer's yeast, fish oil, rosemary powder, corn protein powder, rice bran, meat bone meal, wheat bran, cottonseed meal, wheat, shell powder, a composite additive, an auxiliary additive, a composite feed attractant, puffed wall-broken blood powder, fermented soybean protein powder, calcium dihydrogen phosphate, choline chloride, garlicin, copper sulfate pentahydrate, ferrous sulfate monohydrate, zinc sulfate, manganese sulfate, 1% calcium iodate, 1% sodium selenite, heavy calcium powder, sodium chloride, magnesium glycinate, potassium chloride, copper glycinate, ferrous glycinate, zinc methionine, manganese glycinate, potassium iodate, cobalt methionine and sodium selenite to form powder, adding water, stirring, and uniformly mixing. The carp feed can effectively improve the immunity of carp, reduces the diseased death rate of carp, has no influences on water, and guarantees normality of water.

The invention discloses a method for determining the content of calcium carbonate in cigarette paper, which comprises the steps of: treating the cigarette paper to be determined with hydrochloric acid and distilled water and filtering, adding a potassium iodate aqueous solution and a potassium iodide aqueous solution into the filtrate for reaction; diluting with distilled water without carbon dioxide and analyzing with a spectrophotometer at wavelength of 352nm; and then drawing a standard curve and calculating to obtain the result. In the invention, the spectrophotometer is applied to determining calcium carbonate in cigarette paper for the first time. The recovery rate is 98.2-100.8% and variation coefficient range of continuous five-time determining results is 0.0031-0.40%. The inter-day variation coefficient range is 1.34%. There is no significant difference when comparing the determining result by national standard method with the result by the method of the invention. The methodis simple and convenient to operate, fast to analyze, and has high accuracy and precision, strong stability and good application prospect.

A CMP slurry for and method of polishing a semiconductor wafer during formation of metal interconnects are disclosed. The present invention utilizes a first slurry comprising a first oxidizer, preferably ferric nitrate, to remove the excess metal of the metal interconnect but which leaves the metal residues on the surface of the wafer. A second slurry comprising another oxidizer, preferably potassium iodate solution, having a greater affinity to both the metal residue and the liner material than the underlying dielectric is used to remove the metal residue and liner material with significantly reduced scratching of the underlying dielectric. The more robust metal interconnects formed utilizing the present invention is effective in lowering the overall resistance of a wafer, reducing the number of shorts, and provides greater protection of the underlying dielectric. Overpolishing of the wafer and its associated problems are avoided.

The invention provides goat feed and a preparation method thereof, and relates to the field of goat feed. The goat feed is prepared from, by weight, 40-50 parts of sorghum straw, 35-40 parts of barley, 25-30 parts of corn flour, 30-35 parts of bran, 10-15 parts of peanut meal, 20-25 parts of sugarcane leaves, 8-12 parts of dandelion, 15-25 parts of soybean residues, 2-4 parts of sodium alginate, 0.5-0.8 part of calcium hydrophosphate, 0.01-0.02 part of potassium iodate, 0.3-0.5 part of salt, 1-2 parts of a fermenting agent, 10-15 parts of Chinese herbal medicines and 5-10 parts of phagostimulant. The feed contains various nutrients needed by the growth of goats, and therefore the health care value is achieved and the growth speed of the goats is increased while the healthy production of the feed is guaranteed; the raw materials such as grass meal are fermented, and after fermenting is performed, the nutrition is more comprehensive, the processing and preparing method is simple, and the cost is low.

The invention relates to the field of composite fertilizers, and concretely relates to a long-acting modified sustained-release fertilizer coated by urea-formaldehyde resin. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of 1250-2000 mesh diatomite, 10-12 parts of ammonium phosphate, 12-15 parts of ammonium bicarbonate, 8-10 parts of calcium superphosphate, 6-8 parts of flaxseed meal powder, 4-6 parts of cobs, 8-10 parts of rapeseed meal, 4-5 parts of traditional Chinese medicine residue, 2-4 parts of bamboo shreds, 3-5 parts of agarose, 1-3 parts of tris(hydroxymethyl)aminomethane, 2-4 parts of disodium ethylene diamine tetraacetate, 12-15 parts of urea-formaldehyde resin emulsion, 1-2 parts of disproportionated potassium rosinate, 0.2-0.3 part of sodium dodecanesulphonate, 2-3 parts of polyamide, 1-2 parts of potassium iodate, 3-4 parts of tricalcium phosphate, 2-3 parts of zinc gluconate and 4-5 parts of an auxiliary agent. The composite fertilizer is abundant in raw material kinds and comprehensive and rich in nutrients, contains abundant organics, and is capable of improving soil environment. Dual cladding on nutrients is formed by utilizing diatomite and a sustained-release agent in the production technology, the fertility is durable and stable in release, and the quality and the output of crops are effectively improved.

The invention relates to high-complexation iodine which comprises the following components by mass percent: 50-70 percent of vinylpyrrolidone, 15-30 percent of iodine, 5-15 percent of potassium iodide and 3-10 percent of potassium iodate, wherein the vinylpyrrolidone contains vinylpyrrolidone monomers; the content of the vinylpyrrolidone monomers is 0-500 ppm. The invention further provides a preparation method of the high-complexation iodine. The preparation method comprises the following steps: 1) preparing a vinylpyrrolidone-iodine mixture; 2) mixing and stirring. The high-complexation iodine is good in sterilizing effect, low in irritation, and favorable in safety; the preparation method process is easy to operate, and low in cost; the prepared product is superior in performance.

The present invention belong to baby food, health products technical field, relating to a honeysuckle nourishing rice flour for babies and method of preparing the same. The honeysuckle baby nourishing rice flour of the invention includes raw stuff components as follows: rice flour, sucrose, milk powder, cream, honeysuckle, calcium hydrogen orthophosphate, sodium chloride, calcium gluconate, ferrous gluconate, gluconic acid, vitamin A, nicotinic acid, vitamin B1, vitamin B2, vitamin D1, potassium iodate, oligofructose, docosahexenoic acid and arachidonic acid. The products prepared via steps of preparing honeysuckle juice, dissolving sugar, batching, enzymolysis, cooking, drying, molding, crushed filling. The preparing technics of the invention is simple and easy, suitable for large scale industrial production, and the obtained honeysuckle baby nourishing rice flour combining the baby nourishing rice flour and active ingredient of honeysuckle scientifically, possessing important meaning for promoting healthy growth of babies.

The invention provides a preparation method of a bismuth oxyiodate photocatalyst. The preparation method comprises the following steps: adding bismuth nitrate pentahydrate into a glycol solvent, stirring and dissolving to obtain a solution; adding potassium iodate into the solution so that a molar ratio of the added potassium iodate to the bismuth nitrate pentahydrate is 1: 1, and continuing to stir; placing an obtained precursor into a high-speed centrifuge for centrifugal washing at a centrifugation rate of 6000-8000 rpm, washing with deionized water and absolute ethanol to remove impurities; placing samples obtained by centrifugation into an oven for drying; taking out the dried samples and placing into a muffle furnace, calcining in an air atmosphere for 1-2 h at 250-350 DEG C to obtain the bismuth oxyiodate photocatalyst. The bismuth oxyiodate photocatalyst obtained by the preparation method provided by the invention has excellent photocatalytic performance under ultraviolet light and visible light and has good photocatalytic removal ability on gas-phase zero-valent mercury in power plants.

The invention relates to a method for determining the sulfur content in iron ore by a combustion iodometry and belongs to the material test or analysis technology. According to the method, an iron ore test sample is placed in a porcelain boat and is put into a 1200-1300 DEG C tubular furnace to be heated for 1.52 minutes, a miniature air pump is started, exhausted air is introduced into the tubular furnace for sufficient burning, the burnt mixed gas is introduced into starch absorption liquid, the blue color of the starch absorption liquid starts to fade away, then, potassium iodate standard solution is immediately used for dripping into the starch absorption liquid, the blue color is recovered, when the color fading of the starch absorption liquid is slow, the dripping speed of the otassium iodate standard solution is decelerated until the color of the starch absorption liquid is same as the original blue color and is not changed, the miniature air pump is closed, the porcelain boat is taken out, the milliliter number of the dripped otassium iodate standard solution is read, and the sulfur content is calculated according to a formula S percent=T(V-V0) / W*100percent. The method has the advantages that the determined result of the sulfur content of the ore test sample is accurate and stable, the measurement process is safe, and no potential safety hazard exists.

The invention provides an encapsulated [VW12]4-cluster metal organic nanotube micropore crystalline state material, and a preparation method and an application thereof and relates to a multi-acidic group micropore crystalline state material, and a preparation method and the application thereof. The invention aims to solve the problems that the synthesis difficulty of the present multi-acidic group metal-organic frame crystalline state material is high and the effect of detecting iodate according to an electrochemical method is poor. The chemical formula of the encapsulated [VW12]4-cluster metal organic nanotube micropore crystalline state material is [Co2(bimb)2VW12O40].[bimb].5H2O. The method comprises the following steps: 1) preparing a reaction solution; 2) causing the reaction solution react for 3 days in a polytetrafluoroethylene reaction kettle, and then cooling to room temperature. An encapsulated [VW12]4-cluster metal organic nanotube micropore crystalline state material modified carbon paste electrode is taken as an electrocatalyst for reducing potassium iodate and is used for efficiently detecting iodate ions. According to the method provided by the invention, the encapsulated [VW12]4-cluster metal organic nanotube micropore crystalline state material can be acquired.

The invention discloses a method for determining the penetration depth of iodide ions in concrete, which comprises the following steps of: (101) splitting a test piece: splitting the test piece into two halves after a migration test is completed; (102) spraying a reagent: spraying a potassium iodate solution to the splitting face of concrete, and spraying a starch suspension; (103) acidifying the surface: spraying a weak acid solution when the splitting face of concrete is slightly dry after the step (102) is completed; and (104) measuring the penetration depth: measuring the penetration depth of iodide ions after the splitting face of concrete develops a color, wherein the penetration place of iodide ions displays brown. The test process of the determination method is not influenced by chloride ions inside concrete, the process is simple and quick, and durability design and life predication can be carried out on internally-doped concrete structures and structures subject to chloride ion corrosion.

The invention relates to a natural antioxidant detecting method, which is characterized in that a KIO3-MA-H2O2-H2SO4-[NiL](ClO4)2 nonlinear oscillation system is used as detection liquid, a work curve is built for the oscillatory response of the solution on natural antioxidants, further, the qualitative or quantitative analysis on the natural antioxidants is realized, L in the [NiL](ClO4)2 is 5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradeca-4,11-diene, and all ingredients in the detection solution have the following mol concentrations that potassium iodate is 0.007 to 0.0735 mol / L, malonic acid is 0.025 to 0.375 mol / L, sulfuric acid is 0.00625 to 0.375 mol / L, hydrogen peroxide is 0.6 to 1.4 mol / L, and [NiL](ClO4)2 is 20.217 to 7.26 mol / L. The method has the advantages that the oscillation service life of the nonlinear system is long, the stability is high, specificity and high sensitivity are realized on the natural antioxidants, the quantitative analysis can be realized, meanwhile, the qualitative analysis can be carried out, in addition, the operation is simple, and convenience and high speed are realized.

The invention provides a novel composite iodine disinfectant as well as a preparation method and an application thereof. The novel composite iodine disinfectant is prepared from raw materials, including quaternary ammonium salt, iodine, potassium iodate, inorganic acid and water, in percentage by weight. The preparation method comprises steps as follows: firstly, the quaternary ammonium salt, the inorganic acid and the water are mixed, heated and heat-insulated, then the iodine and the potassium iodate are added, and a continuous heat-insulation mixing reaction is conducted until the iodine is completely dissolved. The composite iodine disinfectant has characteristics of the high sterilization speed and the high efficiency of iodine disinfectants as well as the characteristic of long sterilization and bacteriostatic duration of quaternary ammonium salt disinfectants, so that the usage frequency can be reduced. The preparation method is simple, the technological process is simple and easy to control, the production cycle is short, the production cost is low, and the method is suitable for industrial production. The composite iodine disinfectant can be used as a sterilization product applied to preparation of main components and is good in stability, non-toxic and non-irritating; the composite iodine disinfectant can also be applied to sterilization of animal husbandry and aquaculture and is good in sterilization and bacteriostatic effect.

The invention discloses compound type active iodine disinfectant for livestock, composed of the following materials, by weight: 0.5-3% of iodine, 0.1-2% of potassium iodate, 0.5-3% of potassium iodide, 20-50% of non-ionic surface active agent, 1-5% of organic acid, 1-5% of cosolvent, 5-20% of inorganic acid and purified water. The invention also provides a preparing method and purpose of compound type active iodine disinfectant for livestock, mainly used for aquaculture environmental disinfection, farming instruments disinfection, housing disinfection and animal body surface disinfection.

The invention provides a preparation method of a carbon-doped BiOI / BiOIO3 heterostructure. The preparation method comprises the following steps of adding Bi(NO3)3.5H2O into deionized water, and continuously stirring; dissolving KIO3 (potassium iodate) into the mixed solution, and continuously stirring magnetically, so as to obtain the other mixed solution; dissolving a carbon source into the other mixed solution, and continuously stirring magnetically until the carbon source is dissolved; putting the solution into a hydrothermal reaction kettle, and hydrothermally treating for 6 to 12h at thetemperature of 140 to 170 DEG C, so as to obtain a product; respectively washing the obtained product by deionized water and anhydrous ethyl alcohol for two to five times, so as to obtain a sample; drying the sample in an oven at the temperature of 70 to 85 DEG C; calcining the dried product in a muffle furnace for 2h at the temperature of 200 to 400 DEG C, and naturally cooling to room temperature after the reaction is completed, so as to obtain the product. A catalyst for the carbon-doped BiOI / BiOIO3 heterstructure has strong adsorption and catalysis properties.

The invention relates to the technical field of medical detection and discloses a method and a kit for detecting amylase. The method for detecting the amylase provided by the invention comprises the following steps of: in a buffer solution with a pH value of 7.2, mixing a sample to be detected and soluble starch to obtain a mixed solution; mixing potassium iodide and acidic potassium iodate and mixing the mixture of the potassium iodide and the acidic potassium iodate with the obtained mixed solution; detecting absorbance in a 630nm wavelength; and calculating the concentration of the amylase in the sample to be detected according to the absorbance of a non-enzymatic blank tube which is subjected to the same treatment. In the method, the potassium iodide and the potassium iodate generate iodine under the acidic condition, and the iodine is combined with the unreacted starch to form a blue compound, so influence on reaction color development due to reduction of components caused by easiness in sublimation and volatilization of an iodine solution which is directly used is avoided, and the accuracy of a detection result is improved. The kit is good in stability, long in preservation time, wide in application range and convenient for popularization and can be applied to determination of the content of the amylase in serum or urine by hospitals, health departments and medical biological scientific research institutes at all levels.