174 results about "Iodate" patented technology

A method for electrostatic coating of medical devices such as stents and balloons is described. The method includes applying a composition to a polymeric component of a medical device which has little or no conductivity. The polymeric component could be a material from which the body or a strut of the stent is made or could be a polymeric coating pre-applied on the stent. The polymeric component could be the balloon wall. A charge can then be applied to the polymeric component or the polymeric component can be grounded. Charged particles of drugs, polymers, biobeneficial agents, or any combination of these can then be electrostatically deposited on the medical device or the coating on the medical device. One example of the composition is iodine, iodine, iodide, iodate, a complex or salt thereof which can also impart imaging capabilities to the medical device.

The invention provides a preparation method of an active seaweed extract. The method comprises the steps of: seaweed selecting, impurity removing, weak acid washing, mincing and homogenizing, curing and sterilization under high temperature and high pressure as well as polysaccharide component degradation, pH adjustment, probiotic fermentation, and adding of alginate oligosaccharide for blending. The obtained liquid product is an active seaweed extracting solution, or it can be prepared into active seaweed extract powder through drying, and the extracting solution and the extract powder are collectively called an active seaweed extract. The active seaweed extract prepared in the invention reserves algae iodate, mannitol, inorganic salts, trace elements and other components, and the proteinand polysaccharide components in seaweeds are degraded and easy to absorb. Added with probiotics, secondary metabolites, and low molecular weight seaweed polysaccharide, the active seaweed extract ofthe invention has better biological activity, and can remove harmful heavy metals so as to improve the security of the seaweed extract.

The invention discloses an algae iodate and a method for extracting the algae iodate from algae. The method mainly comprises the following steps: adding water to soak the kelp; filtering to remove floater and sediments; carrying out evaporation on the obtained product; discharging the crystallized matter; carrying out concentration and high-temperature sterilizing on the crystallized matter to obtain the algae iodate; and cooling and packaging the algae iodate. The invention also discloses algae iodate salt prepared by the algae iodate.

A highly sensitive method that utilizes a Paper Analytical Device (PAD) which measures part per million (ppm) levels of iodate iodometric titration is provided. The PAD quantifies concentrations of 0.6-15 parts per million (ppm) of iodine. The PAD has at least 12 reaction zones that contain dried reagents thereon and at least one electronically readable information zone. Salt and water are mixed and drops are placed onto 12 reaction zones that contain the loaded dry reagents. The PAD is shaken and the reaction zones turn blue if a preset iodate concentration has been exceeded. Test results are analyzed by comparing the PAD or an image of the PAD with standards, either by eye or with image analysis software to measure the color intensities which are compared to a calibration curve to quantify the iodate levels. The image analysis quantifies iodine with an average absolute accuracy and precision of 0.9 ppm over a range of 0.6-15 ppm.

The invention relates to a plating solution for chemical plating nickel-tungsten-phosphor alloy, comprising nickel vitriol of 24 to 28 g/l, sodium citrate of 40 to 70 g/l, gluconic acid sodium salt of 20 to 30 g/l, ammonium sulfate of 30 to 40 g/l, sodium pyroborate of 5 to 15 g/l, sodium tungstate of 30 to 50 g/l, sodium hypophosphite of 20 to 28 g/l, potash iodate of 10 to 20 mg/l, thiourea of 0.5 to 1.5 mg/l and sodium dodecyl sulfate of 5 to 15 mg/l. The plating solution is characterized in that: the chemical plating method using the plating solution comprises the following steps that: the pH value of the plating solution is adjusted to 8 to 9, and then the plating solution is heated to 80 to 90 degree centigrade, and then the processed plating articles are dipped into the plating solution; the time of dip plating is determined by the required plating layer thickness. The plating solution for chemical plating nickel-tungsten-phosphor alloy has the advantages of higher stability and higher plating speed.

The present invention relates to a class of chemically named long chain alkyl berberine salt derivatives (hydrochloride or Bromate or iodate or hydrofluoric acid salt), and the molecular structural formula is stated above, wherein, X is equal to F-, Cl-, Br-, I-, SO42-, NO3-, PO43-, citric acid radical, acetic acid radical or lactic acid radical. R1, R2, R3, R4, R5 see table above. The class of the substances is provided with obvious hypoglycemic and hypolipidemic activities which are significantly higher than that of berberine salt, so that the invention is a very promising new compound with hypoglycemic and hypolipidemic medicinal values.

A synthetic acid composition for use in oil industry activities, said composition comprising: urea and methanesulphonic acid in a molar ratio of not less than 0.1:1; a metal iodide or iodate; an alcohol or derivative thereof.

The invention is a preparing method of the low-molecular chitosan quaternary-ammonium-salt complex iodine sterilizing solution, its character: mixing and agitating the low-molecular chitosan quaternary-ammonium-salt or low-molecular chitosan solution with one, two or all of dialkyl diquaterary ammonium salt, dialkyl quaterary ammonium salt, and methyl quaterary ammonium salt, then heating the mixed solution, adding with iodine, or iodine and iodate, preserving heat to react, and cooling to room temperature. It is an environmental-protection, strong-efficiency disinfectant, irritation and the toxicity lower, and the sterilizing effect more stable and permanent.

The invention relates to a method for rapidly detecting iodate by surface enhanced Raman spectroscopy and an application of the method. A Raman signal of the iodate is very weak, an SERS (Surface Enhanced Raman Scattering) signal of iodate is also weak, hydroxylamine is oxidated into nitrite by the iodate, coupling dye is generated from nitrite ions and a diazo-coupling reagent under an acidic or alkalescent condition, the SERS signal of the coupling dye is strong, and qualitative and quantitative detection of the iodate is indirectly carried out by measuring the dosage of the coupling dye through SERS. According to the method and the application thereof, Au/SiO2 is used as an SERS substrate material, the stability of particles is improved by means of a silicon dioxide shell, so that the result repeatability is better. The method is suitable for rapid detection of the iodate in complex samples, such as tablet salt, drinking water and environment water and has the advantages of simpleness and rapidness (about 2 minutes), suitability for field detection and benefits for popularization and use and the like.

The invention relates to nonlinear optical crystal plumbum-lanthanum iodate which belongs to a nonlinear optical material and synthesis thereof. The plumbum-lanthanum iodate has a chemical formula of La3Pb3O(IO3)13 and the molecular weight of 3328, belongs to the trigonal system and has a space group of R3c and unit cell parameters that a is 22.234(2), b is 22.234(2), c is 13.702(1)*, Alpha and Beta are respectively 90 degrees, Gamma is 120 degrees, V is 5866(1)*3 and Z is 6. The plumbum-lanthanum iodate (La3Pb3O(IO3)13) is prepared by a hydrothermal method and has good nonlinear optical performance, and the SHG coefficient of plumbum-lanthanum iodate powder is two times of that of KDP and equivalent to that of LBO.

The invention relates to a detection method for trace forbidden or restricted iodate and bromate in a cosmetic, and aims to provide the method which has the characteristics of high specificity, high anti-interference capacity and high accuracy. According to the technical scheme, the ion chromatography method for detecting iodate and bromate in the cosmetic comprises the following steps of: (1) preparing a sample: weighing a certain amount of cosmetic and placing in a centrifuge tube, and adding ultra-pure water to keep constant volume for later use; or adding the ultra-pure water and then ultrasonically oscillating, then loading on a centrifuge for centrifugal separation, taking supernatant and keeping constant volume for later use by using the ultra-pure water; or adding a certain amount of methylene dichloride, uniformly mixing through vortex, adding the ultra-pure water, ultrasonically oscillating, then loading on a centrifuge for centrifugal separation, taking the supernatant and keeping constant volume for later use by using the ultra-pure water; (2) enriching and purifying: taking the supernatant and collecting eluent through a water-phase filter membrane and an RP (Reversed Phase) column; and (3) loading on a machine for detection: taking the eluent and inputting into an ion chromatograph equipped with a post-column derivation device and an ultraviolet detector for detection.

An explosive composition comprises a porous fuel and an oxidizer. The porous fuel is a solid with a structure size measuring between about 2 nm and 1000 nm and has a porosity that lies between 10% and 98%. The oxidizer is solid or liquid at room temperature and is incorporated into the pores of the porous fuel. The oxidizer is selected, in an amount of at least 50% by weight relative to a total quantity of the oxidizer, from the group consisting of hydrogen peroxide, hydroxylammonium nitrate, organic nitro compounds or nitrates, alkali metal nitrates or earth alkali metal nitrates as well as metal nitrites, metal chlorates, metal perchlorates, metal bromates, metal iodates, metal oxides, metal peroxides, ammonium perchlorate, ammonium nitrate and mixtures thereof.

The invention discloses an extraction method of algae iodate, and belongs to the fields of algae processing and food or feed additives. The method comprises the following steps: with brown alga as a raw material and water as an extracting liquid, carrying out multistage countercurrent extraction, carrying out vacuum concentration on the extracting liquid at 55-65 DEG C into a clear liquid, and stopping heating and concentrating when the specific gravity is 1.30-1.40; carrying out primary centrifugal separation when the clear liquid is hot to remove a high-temperature salt; cooling and removing a concentrated liquid of the high-temperature salt; carrying out secondary centrifugal separation, and removing excessive crude mannitol to obtain the concentrated liquid; and adding chitosan to remove heavy metal and arsenic in the concentrated liquid, and centrifuging, so as to obtain an algae iodate extracting liquid. The algae iodate extracted by the method is low in heavy metal content, and high in extraction rate; and meanwhile, a composite algae iodate salt additive prepared from the components such as algae iodate composite potassium iodide, potassium chloride and glutamic acid extracted by the method is good in heat stability.

The invention relates to a method for producing liquid edible salt through brine extraction of well and rock salt. The method comprises the steps: (1), injecting fresh water in a mine for brine extraction to obtain brine; (2), purifying the brine obtained in the step (1) to remove impurities; (3), evaporating and concentrating liquid salt obtained in the step (2) to ensure that the concentration of sodium chloride reaches 20-36 wt percent; (4), adding the concentrated liquid salt of sodium chloride in the step (3) in potassium iodate or algae iodate, uniformly mixing and stirring; and (5), sub-packaging the liquid edible salt obtained in the step (4). According to the method, the liquid salt is directly prepared through the brine extraction of well and rock salt without being evaporated and concentrated into solids, thus energy can be saved. The salt is loaded in a plastic container which is marked with scales and provided with an extruding nozzle or provided with an extruding nozzle with fixed spraying amount every time, thus the salt adding amount can be precisely controlled, and the condition that the food is too light or too salty due to excessive salt or insufficient salt is prevented.

The present invention is directed to a composition in solution (often, an aqueous solution) which comprises a combination of molecular iodine (I₂) and an acceptable source of iodate (IO₃), and an acid (inorganic or organic), wherein iodide and iodate are present in the composition at a molar ratio of about 0.1 to about 25, the concentration of uncomplexed molecular iodine is a disinfectant, biocidal and/or antimicrobial (depending upon the end use of the composition) effective amount the concentration of acid in the composition is effective to provide a buffering pH in the composition ranging from about 1.5 to about 6.5. Compositions according to the present invention are storage stable for unexpectedly long periods of time (up to about 5 years), and find use as disinfecting solutions, as germicides and/or biocides (e.g. antiviral, antibacterial, antifungal, antispore etc.) for various surfaces and solutions including living and inanimate surfaces and are particularly useful because of their low cost, their reduced use of iodine, their activity (because of the high concentration of free molecular iodine in solution), their reduced environmental impact, their long term storage stability and their reduced toxicity. They also have particular utility in treating food surfaces to retard spoilage, increase useful shelf-life and minimize the human and economic cost of food waste. The compositions inactivate viruses, bacteria (both gram negative and positive), spores and fungi. Compositions according to the present invention may be used and stored in a variety of materials, given the substantial absence of corrosion (non-corrosive) these compositions display. Dental compositions (e.g. preprocedure rinses and other compositions) and methods related thereto are also disclosed.

The invention provides a target and fluorescence color variable fluorescence probe and application thereof in distinguishing of imaging dead and living cells. A chemical name of the fluorescence probeis 2-(6-methoxy-6-naphthylvinyl)-N-methyl-quinoline iodate. The fluorescence probe is synthesized by steps: using 2-methylquinoline and iodomethane to synthesize 1,2-dimethylquinoline iodate; subjecting the 1,2-dimethylquinoline iodate and 6-methoxy-2-naphthaldehyde to condensation reaction at the room temperature to generate a product by taking pyrrolidine as a catalyst. The synthesis method ofthe probe is simple, dead and living cells can be distinguished and marked by two fluorescence colors and two dyeing positions, and a promising application prospect is achieved.

The invention relates to a new chemical substance with a chemical name of long-chain alkyl coptisine halate derivative (hydrochloride or bromate or iodate or hydrofluoride). The molecular structural formula of the derivative is disclosed in the specification, wherein X is F-, Cl-, Br- and I-; and R is CnH2n+1, and n is 1-20. The substance has obvious activity of reducing the blood fat and the blood sugar, and the activity of reducing the blood fat and the blood sugar is obviously higher than that of the coptisine salt, thus the long-chain alkyl coptisine halate derivative is a promising new compound having medicinal values of blood fat reduction, blood sugar reduction, and the like.

The invention provides an ultrahigh-partition-coefficient composite iodine solution and a preparation method thereof, and belongs to the technical field of disinfectant preparation. The composite iodine solution is prepared from iodine, iodide or iodate, a nonionic surfactant, hydrochloric acid, phosphoric acid, and the balance of purified water. The preparation method comprises the following steps: dissolving the nonionic surfactant in hydrochloric acid, stirring, sequentially adding the iodine and the iodide or iodate, continuously stirring to obtain an iodine/nonionic surfactant complexingsolution, adding the phosphoric acid and purified water into the complexing solution, and stirring to obtain a reddish brown viscous liquid, namely the composite iodine solution. The composite iodinesolution can enhance the stability and dispersity of iodine-iodine ion composite particles, so that the storage stability of composite iodine is enhanced, and the loss rate of effective iodine is controlled to be 10% or below; the distribution coefficient can reach 1300 to 1500; and the penetration sterilization performance is strong, the safety is high, the water solubility is good, and the product quality is excellent.

The invention relates to a compound fluorine cesium iodate and fluorine cesium iodate nonlinear optical crystal and a preparation method and application thereof. The chemical formula of a compound isCsIO2F2, and the molecular weight of the compound is 329.81. A hydrothermal method is adopted to prepare the crystal, the chemical formula of the crystal is CsIO2F2, the molecular weight of the compound is 329.81, the crystal belongs to an orthorhombic system, the space group is Pca 21, and according to cell parameters, a is equal to 8.781(3) angstrom, b is equal to 6.3771(18) angstrom, c is equalto 8.868(3) angstrom, alpha is equal to 90 degrees, beta is equal to 90 degrees, gamma is equal to 90 degrees, and V is equal to 496.6(2) angstrom<3>; the ultraviolet transmission cut-off edge is 272nm, the infrared transmission cut-off edge is 12 microns, the band gap is 4.5 eV, and the laser damage threshold value is 20 times that of AgGaS2. The nonlinear optical effect is about 3.5 times thatof KDP. The crystal has the advantages of simplicity in operation, low in cost, free of toxicity, short in growth period, stable in physical and chemical properties and the like, and can be widely applied to nonlinear optical devices such as frequency doubling conversion and optical parametric oscillators.

The invention relates to a catalyst system used for methanol low-pressure carbonyl synthesis of acetic acid, which uses rhodium compounds as the active component carbonylation of carbonyl synthesis catalyst and uses alkyl iodide, water, hydroiodic acid, alkali metal iodate and sulfonate as promoters, and uses acetic acid as polar solvent. Because sulfonate is added to the catalyst system, better catalytic activity and stability are achieved. In methanol carbonylation, the catalyst system can convert methanol into acetic acid at high speed with high selectivity under lower temperature and pressure. The reaction reduces the concentration of water and hydroiodic acid, and reduces corrosivity to equipment.

The invention discloses a health-care biscuit and a producing method. The health-care biscuit is characterized by comprising components in parts by weight as follows: 100-150 parts of wheat flour, 20-25 parts of white granulated sugar, 1-2 parts of cream, 3-5 parts of iodate, 30-40 parts of corn starch, 1.5-2.5 parts of baking soda, 2-2.5 parts of xylitol, 3-5 parts of vegetable oil, 2-2.5 parts of instant yeast and 60-80 parts of a mixed liquid. The biscuit mainly comprises conventional biscuit production raw materials such as the wheat flour, eggs, yeast powder and the like as well as the mixed liquid and is produced through mixing, fermentation, rolling, forming and baking. The mixed liquid comprises Edgeworthia flowers, hairyvein agrimonia herbs, Pilose asiabell roots, prepared rehmannia roots, longan pulp, red dates and Chinese wolfberries. The produced health-care biscuit has the uniform color, is rich in nutrition, tastes crisp, has nourishing and health-care effects of clearing the liver-fire, improving eyesight, enhancing human immunity, resisting fatigue and the like, and has good nutrition and medical care effects.

The invention discloses a method for producing sodium periodate. The method comprises the steps of preparation of trisodium dihydrogen periodate, preparation of sodium periodate, crystallization and separation, centrifugal dehydration and drying, wherein the preparation step of the trisodium dihydrogen periodate sequentially comprises the steps of preparation of sodium hydrogen iodate, preparation of sodium iodate and oxidation with sodium persulfate. The trisodium dihydrogen periodate is obtained by reacting sodium chlorate and iodine in an aqueous solution to produce the sodium hydrogen iodate, neutralizing the sodium hydrogen iodate by using sodium hydroxide to obtain the sodium iodate and oxidizing the sodium iodate in the sodium hydroxide solution by using the sodium persulfate, so that the method for preparing the trisodium dihydrogen periodate by using chlorine, iodine and sodium hydroxide in the prior art is abandoned, and the production method is stable in reaction, easy to control and high in production safety degree. Compared with a chlorine oxidation method, the method has the advantages of low consumption of raw materials, small amount of discharged waste liquor and environment friendliness.

The invention discloses a preparation method for indole-4-formaldehyde. The preparation method comprises the following steps of: (1) adding 5-amino isoquinoline and acetonitrile into a reaction device and stirring; adding methyl iodide; raising temperature to 70-100 DEG C to react for 0.5-2 hours; and performing post-treatment to obtain 5-amino-2-methyl isoquinoline iodate after complete reaction; and (2) adding the 5-amino-2-methyl isoquinoline iodate, a catalyst and a mixed solvent into a high-pressure reaction device and sealing, reacting under internal pressure of 0.3-2 MPa and at the temperature of 100-140 DEG C for 10-40 hours; and performing post-treatment to obtain the indole-4-formaldehyde after complete reaction. The method has the advantages of simple process, high yield, short production period, less catalyst, less solvent and low production cost.