4973 results about "Sodium citrate" patented technology

Improved flow cytometer system particularly adapted to use for sex-selected sperm sorting include enhanced sheath fluid and other strategies which minimize stress on the sperm cells, including a 2.9 percent sodium citrate sheath solution for bovine species and a hepes bovine gamete media for equine species. Improved collection systems and techniques for the process are described so that commercial applications of sperms samples as well as the resulting animals may be achieved.

The invention relates to an anti-emulsification water-soluble metal washing agent. Every 100 parts of the anti-emulsification water-soluble metal washing agent include the following components according to parts by weight: 3-7 non-ionic surfactant, 3-7 bi-ion active agent, 1-5 chelator, 1-5 rust preventive, 5-10 inorganic builder and the balance water, wherein the non-ionic surfactant is any one of fatty amine polyoxypropylene ether, alkylphenol ether and fatty amine polyoxyethylene alkyl ether ammonium sulfate, the bi-ion active agent is any one of alkyl dimethylin acetic acid betaine, lauramidopropyl betaine and cocamidopropyl betaine, the chelator is any one of sodium citrate, ethylenediaminetetraacetic acid tetrasodium salt and nitrilotriacetic acid sodium salt, the rust preventive is any one of sodium borate, sodium nitrite, sodium benzoate and long carbon chain carboxylic acid amine, and the inorganic builder is any one of trisodium phosphate, sodium metasillcate, sodium carbonate, sodium bicarbonate and sodium hydroxide. The anti-emulsification water-soluble metal washing agent has the advantage of higher cleaning capacity and reutilization capacity.

The invention discloses konjac jelly powder. The konjac jelly powder comprises the following components in part by weight: 30 to 40 parts of konjac powder, 10 to 25 parts of carrageenin, 0 to 10 parts of xanthan gum, 0 to 15 parts of locust bean gum, 0 to 20 parts of guar gum, 5 to 12.5 parts of sodium citrate, 8 to 15 parts of potassium chloride, 0 to 7 parts of xylitol and 2 to 5 parts of citric acid. A method for preparing jellies by using the konjac jelly powder comprises the following steps of: mixing the konjac jelly powder and white granulated sugar uniformly; pouring the mixed white granulated sugar and konjac jelly powder into a stirred cold water proportioning cylinder; continuously adding the white granulated sugar or syrup, opening steam and heating; and performing filtration, packing and sterilization to obtain konjac jelly finished products. The konjac jelly powder provided by the invention has low production cost, adjustable taste and high dietary fiber content; the prepared konjac jellies do not need to be treated by alkali; and the method for preparing the jellies by using the konjac jelly powder has simple making process and low making cost.

Improved insemination systems particularly adapted to use for sex-selected sperm sorting include systems which achieve superovulation and then multiple embryo production with sexed embryos. These systems combine with other techniques, including techniques for enhanced sheath fluid and other strategies which minimize stress on the sperm cells, and, potentially, a 2.9 percent sodium citrate sheath solution for bovine species and a hepes bovine gamete media for equine species. Improved collection systems and techniques for the process are described so that commercial application of sperms samples as well as the resulting animals may be achieved.

The invention relates to a preparation method for high-conductivity graphene and silver nanoparticle composite materials. The method comprises the steps that graphene oxide is prepared at first; a graphene oxide water solution is prepared; silver nitrate is added into the obtained graphene oxide water solution, the temperature is risen to be 90+ / -10 DEG C, sodium citrate is added in the solution, and stirring and reaction are conducted; ammonium hydroxide and hydrazine hydrate are added into the obtained solution, and stirring and reaction are conducted at the temperature of 90+ / -10 DEG C; deionized water and ethyl alcohol are adopted to clean the reaction product, vacuum freeze drying is conducted on the cleaned reaction product, and then the conductive graphene and silver nanoparticle composite materials are obtained. The conductivity of the composite materials is 3.71-18.32S / cm, the graphene and silver nanoparticle composite materials prepared based on the method can greatly improve the conductivity of graphene, and can be further applied in the field of printed electronics.

The invention discloses a brushing-proof abrasion-proof and erosion-proof ceramic paint, which is characterized by the following: selecting at least one of electric-melting brown corundum, electric-melting subwhite corundum, electric-melting white corundum, carborundum and electric melting mullite with different grain sizes as main material and at least one of compact corundum, electric-melting subwhite corundum, electric-melting white corundum, carborundum, silicon nitride and boron nitride as auxiliary material; using CA50 calcium aluminate cement or pure calcium aluminate cement as binder and nanometer micro-silica powder and active alpha-Al2O3 micropowder as reinforcer; making hyperdrying active high-effective dehydragent, sodium citrate and sodium hexametaphosphate as composite additive; loading in the strength stirrer to stir 12-17min; blending evenly; packing.

The invention discloses an injection-purpose medicine composition for improving stability of ligustrazine medicine injection formulation and a preparation method of the injection-purpose medicine composition. The injection-purpose medicine composition is prepared by the method comprising following steps: dissolving ligustrazine salt in water for injection, adjusting the pH value of the liquid medicine by adding citric acid and / or sodium citrate used as a pH regulator, wherein the dosage of the citric acid and / or sodium citrate ranges from (0.1mg to 200.0mg) / 100ml. In the invention, pH value of the injection liquid can be more stable, the content of ligustrazine degradation substance is greatly reduced compared with that of the prior art, the clarity of the ligustrazine injection liquid is improved under the condition of not using other cosolvents to increase the clinical application risk, particularly, the problems of small white spots, white blocks and solution turbidity are solved under the condition that the ligustrazine injection liquid is stored for a long time by adopting the prior art, and the medicine composition ensures that the inspection of visible foreign substances of the product is in accordance to the formulation of medicine quality standard, and is convenient for clinical medication and popularization.

Improved flow cytometer system particularly adapted to use for sex-selected sperm sorting include enhanced sheath fluid and other strategies which minimize stress on the sperm cells, including a 2.9 percent sodium citrate sheath solution for bovine species and a hepes bovine gamete media for equine species. Improved collection systems and techniques for the process are described so that commercial applications of sperms samples as well as the resulting animals may be achieved.

The invention relates to an offset printing fountain solution composition containing composite buffer system, which contains two buffer systems, wherein one of the buffer systems comprises citric acid and M2(I)HPO4, and in the molecular formula M2(I)HPO4, M is K plus, Na plus or NH4 plus ion; and the other buffer system comprises citric acid and potassium citrate, sodium citrate or ammonium citrate, components are as follows in percentage by weight: 1.0-10 percent of the citric acid, 1.0-10 percent of K2HPO4, Na2HPO4 or (NH4)2HPO4, 1.0-10 percent of the potassium citrate, the sodium citrate or the ammonium citrate, and the balance water. When 1 percent to 5 percent by weight of working solution prepared with the diluted fountain solution is used for printing, the change of pH value is less than 0.35, and when 1 percent to 2 percent of working solution is prepared, the change of pH value is less than 0.25. The ultrahigh buffering property of the fountain solution can significantly help to improve adaptability and tolerance during high-speed printing operation.

The invention provides a method for performing electroless nickel plating on the surface of aluminum nitride ceramic, belonging to the ceramic thin-film metallization field. The method comprises the following specific steps: 1) polishing the surface of aluminum nitride with a machinery; coarsening the aluminum nitride substrate with mixed acid or alkali, completely cleaning away the residual acid or alkali; 3) sensitizing the coarsened substrate in stannous chloride solution, activating in palladium chloride solution or performing activation without palladium; 4) weighting a certain amount of nickel sulphate, sodium hypophosphite, sodium citrate, sodium acetate, lactic acid, thiourea and sodium dodecyl sulfate in sequence to prepare a chemical plating solution; and 5) adjusting the pH value of the solution to 4.0-6.0 with acid or alkali, heating the solution to 70-95 DEG C, and placing the prepared substrate in the solution to perform electroless nickel plating. The invention is characterized in that the electroless nickel plating can be performed on the surface of the aluminum nitride ceramic substrate which is difficult to plate; and a certain amount of surfactant is added so that the plating becomes denser and smoother, the binding force between the plating and the substrate is increased, and the solderability of the plating is better.

There is provided composite nano-particles comprising nano-crystal particles dispersed stably and individually in suspension in high concentration without mutual aggregation of the nano-particles. A determined amount of pure water or deionized water is poured into a reactor, into which is introduced nitrogen gas at rate of 300 cm3 / min for a given time while agitating with a stirrer to remove dissolved oxygen in the pure water, allowing to stand in an atmosphere of nitrogen. Next, the inside of the reactor is maintained in an atmosphere of nitrogen and sodium citrate as a dispersion-stabilizing agent, an aqueous solution of MPS as a surface-modifying agent, an anion aqueous solution for co-precipitation as a nano-crystal and a cation aqueous solution are added, in that order. Then, an aqueous solution of sodium silicate is added to the reactor, which is then allowed to stand in the dark place in an atmosphere of nitrogen after agitation. At that time, a vitrification-inhibiting agent may be added in order to inhibit the growth of glass layer.

The invention discloses a chemical nickel-plating method for carbon fiber, which is designed for overcoming the disadvantages of high cost, a large number of process steps and poor operability existing in the prior art. In the method, a chemical plating process is adopted; and a pre-treatment is performed on a raw material and chemical plating solution is prepared before the chemical plating. The pre-treatment process comprises the steps of: calcining by using a muffle furnace to remove glue; soaking in solution of absolute ethanol to remove oil; performing surface roughening and activating treatment by using solution of sodium hydroxide and solution of silver ammonia; sensitizing by using a sensitizer, namely stannous chloride; and performing surface reduction by using solution of sodium hypophosphite. The chemical plating solution consists of nickel sulfate hexahydrate, sodium hypophosphite, sodium pyrophosphate and sodium citrate. The chemical nickel-plating on the carbon fiber is finished by placing a pre-treatment product of the chemical plating into the chemical plating solution, and reacting, standing, filtering and drying under a chemical plating condition. The method has the characteristics that: the product has a uniform surface, a compact plating layer and uniform particles.

The invention provides a method for preparing carbon-supported nucleocapsid type Ni-Pt particles for direct methanol fuel cell catalysts, which belongs to a preparation process of direct methanol fuel cell catalysts. The method comprises the steps of adopting sodium citrate as a stabilizer, adopting cationic surfactant CTAB as dispersant, using sodium hypophosphite to reduce nickel acetate, generating a Ni kernel on the surface of Vulcan XC-72 or mesoporous carbon treated with sodium borohydride, washing superfluous sodium hypophosphite and generating a Pt shell on the surface of the Ni kernel through chemical replacement. The catalyst has a structure with the Ni kernel and the Pt shell, and has the advantages of low Pt support amount and high catalytic activity.

The invention relates to a low-foaming anti-crease soft laundry detergent and a preparation method thereof. The low-foaming anti-crease soft laundry detergent comprises the following components according to proportions: 1-30 percent by weight of nonionic surface active agent, 1-30 percent by weight of anionic surface active agent, 0.5-5 percent by weight of ester quaternary ammonium salt, 0.5-8 percent by weight of alkyl-glycoside, 0.5-3 percent by weight of soap powder, 0.01-0.04 percent by weight of anhydrous calcium chloride, 1-4 percent by weight of sodium citrate, 0.18-1.8 percent by weight of anti-crease agent, 0.5-10 percent by weight of propylene glycol, 0.01-1 percent by weight of preservative, 0.1-2 percent by weight of enzymic preparation, 0.01-0.4 percent by weight of fluorescent whitening agent and the balance of deionized water. The laundry detergent has the advantages of softness, crease resistance, low foaming, stable system, high enzymatic activity and strong detergency.

The invention relates to a food fruit material, wherein, 100 portions by weight of which is prepared from the raw materials as follows: 45 potions to 80 portions of fruit, 1 portion to 3 portions of modified starch, 0.01 portion to 0.06 portion of sodium citrate, 0.01 portion to 0.03 portion of Acesulfame-K and 0.01 portion to 0.1 portion of aspartame and the rest is water to make up 100 portions. The invention also provides a method for producing the food fruit material and a food added with the food fruit material which is produced by the method. The food fruit material provided by the invention has low content of cane sugar, contains various fruits and is good both in nutrition and taste. Furthermore, the manufacturing method provided by the invention can produce fruit-contained food with different flavors; selection and sterilization of the fruit are strict, and both the degree of hardness and softness and degree of tartness and sweetness of the fruit material can be set, thus being suitable for being selected and taken by the consumers for a long time.

The invention relates to a method for preparing copper-titanium dioxide core-shell nanoparticles. In the method, cupric ions provided by cuprous chloride are dissolved into ammonia water; an aqueous solution of polyethylene glycol, an aqueous solution of sodium citrate, an aqueous solution of ascorbic acid, a solution of tetrabutyl titanate (absolute ethyl alcohol) and urea are sequentially addedinto the ammonia water; the ammonia water is put into a teflon-lined stainless steel autoclave after the ammonia water is stirred at room temperature; and the nearly-spherical core-shell nanoparticles are prepared through controlling the temperature and the time for the thermal reaction of the mixed solvents. In the method for preparing the copper-titanium dioxide core-shell nanoparticles, the ascorbic acid serves as a reducing agent and is used for reducing the cuprous ions; and the polyethylene glycol serves as a soft template. The method for preparing the copper-titanium dioxide core-shellnanoparticles has the advantages of simple process, environment-friendliness, low cost and the like; the outer layer of each of the prepared copper-titanium dioxide core-shell nanoparticles is anatase titanium dioxide, and the inner layer of each of the prepared copper-titanium dioxide core-shell nanoparticles is cubic-phase copper elementary substance; and the size distribution is even, and the particle size is controllable, thus the copper-titanium dioxide core-shell nanoparticles can be used as the electrode materials and the photocatalyst materials of dye-sensitized solar cells.

The invention provides a light-weight and high-strength magnesium oxysulfate foamed plate which is obtained with magnesium oxysulfate as a cementing material. The foamed plate is prepared from, by weight, 40-50 parts of light-calcined magnesia, 40-50 parts of a magnesium sulfate heptahydrate solution, 1.5-3 parts of a modifying agent, 5-6 parts of a foaming agent, 1.5-2.5 parts of foam stabilizer, 1-2 parts of a waterproof agent, 0.5-1 part of a water reducing agent and 2-3 parts of polypropylene fibers. The modifying agent is prepared from one or more of citric acid, boric acid, phosphoric acid and sodium citrate. The foaming agent is hydrogen peroxide with the mass concentration being 25-30%. The foam stabilizer is triethanolamine oleate aqueous emulsion with the mass concentration being 8-10%. The absolute dry bulk density of the magnesium sulfate foamed plate is lower than 200 kg / m<3>, the absolute dry comprehensive strength is 0.7 MPa or above, a heat conduction coefficient is lower than 0.045 W / (m.K), the magnesium sulfate foamed plate has the advantages of being light in weight, high in strength, good in hole structure, good in heat-preserving and sound insulating effect, free of active magnesia and good in fire resistance and having no corrosion effect on metal, and the light-weight and high-strength magnesium oxysulfate foamed plate is particularly suitable for serving as a fireproof door and internal wall heat-preserving and heat-insulating material. The invention further provides a preparation method of the magnesium oxysulfate foamed plate.

The invention provides a shrimp preservative prepared from water-soluble chitosan and ginger extract, and a using method thereof. The shrimp preservative is a composite preservative which is formed by taking water-soluble chitosan and ginger extract as main raw materials and compounding the main raw materials with antioxidant, phytic acid, sodium citrate and dextrin. Fresh shrimps or shrimp meat with no head and shell are soaked in seawater or clear water in which the shrimp preservative is dissolved at a temperature of between 0 and 10 DEG C, and then the aims of preventing decay, stopping shrimp heads from blackening, preventing fishy smell from increasing and the like can be achieved. The shrimp preservative has broad application prospects. As the shrimps subjected to freshness-keeping treatment seldom change color or decay in a processing course, are bright in body, pure in taste, strong and elastic in meat, the sensory quality of the shrimps is remarkably improved. The shrimp preservative has the advantages that the shrimp preservative is simple in production method, convenient to use, capable of applying to various types of food processing taking the shrimps as raw materials, remarkable in freshness-keeping effects and capable of keeping the moisture of the shrimps, raising product yield, improving product quality and increasing economic benefit.

A composition includes a plurality of amino acids. The plurality of amino acids includes at least one essential amino acid and at least one non-essential amino acid. The plurality of amino acids also includes at least one branch-chain amino acid. The composition also includes a source of carbohydrates. The compositions also includes purified water. The plurality of amino acids comprises about 1 wt % of the composition. A composition includes a plurality of amino acids, sodium citrate, sodium chloride, potassium phosphate, flavoring, a source of carbohydrates, and purified water. In some embodiments of the composition, the plurality of amino acids includes alanine, arginine, aspartate, cystine, glutamine, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonin, tryptophan, tyrosine, and valine.

The invention discloses a phosphate-free environment-friendly cleaning agent which has non-toxic, innocuous, noncombustible, non-explosive, non-volatile, nonflammable, inodorous and phosphate-free. The cleaning agent mainly comprises the following raw material formulations in portion by weight: group A: 3 portions of sodium citrate, 2 portions of sodium gluconate, 4 portions of sodium hydroxide, 3 portions of sodium silicate, and 1 portion of sodium carbonate; group B: 3 portions of fatty alcohol-polyoxyethylene ether-AEO9, 4 portions of octylphenol-polyethoxylate OP-10, and 3 portions of triethanolamine; and group C, 60 to 80 portions of purified water.

The invention discloses preserved passion fruits and a processing method thereof. The method comprises the concrete steps of firstly, cleaning and cutting fresh passion fruits as raw materials, and separating peels from pulp by removing the pulp; secondly, boiling the peels, removing cuticula, enzymatically hydrolyzing, protecting the color and sugaring; thirdly, mixing the pulp with white granulated sugar and citric acid or citric acid to prepare mixed pulp, and burying the mixed pulp into the peels; finally performing processes of drying, cooling and the like to prepare finished products of preserved passion fruits. According to the method, the selectivity on fruit raw materials is good; the processed preserved passion fruits keep the original aroma and taste of passion fruits, are bright as ever and soft in mouth feel, and have remarkable market competition advantages; a new way is opened up for deep processing of the passion fruits, a very good method is provided for improving the value of the passion fruits, and relatively large profit space is created for enterprises.

The invention relates to a beverage having multiple health-care functions. The beverage having multiple health-care functions is characterized in that lotus, lotus leaf, haw, reed rhizome, gynostemma pentaphylla, chrysanthemum, licorice, ginkgo leaf, malt, cassia seed, coix seed, wolfberry, fleece-flower root, honeysuckle flower, root of kudzu vine, mint, Chinese yam, common curculigo rhizome and drinking water are utilized as raw materials; white sugar, honey, lemon essence, sodium citrate, mint essence, sodium cyclamate, caramel and jujube juice are utilized as seasonings; the raw materials are subjected to water boiling extraction by a conventional traditional Chinese medicine boiling extraction method; the extract is concentrated, is added with the seasonings and is stirred; and the mixture is added with drinking water to form the beverage having multiple health-care functions. The beverage having multiple health-care functions is a high-grade nutriment having a scientific and reasonable formula, functions of promoting blood circulation and removing blood stasis, clearing and activating channels and collaterals, consolidating basis and recovering promordial qi and relieving uncomfortable symptoms, no toxic and side effects, a good taste, no any bitterness taste, and effects of sunstroke prevention, temperature reduction and diuresis.

The invention discloses a production technique for chicken powder with a great freshness flavor, and belongs to the technical field of processing food seasoning. The chicken powder comprises the following materials according to mass: 30kg of fresh chicken skeletons, 30kg of fresh chicken, 7kg of maltodextrin, 2.5kg of disodium nucleotide, 0.1kg of sodium citrate, 7kg of trehalose, 10kg of edible salt, 10kg of monosodium glutamate, 2kg of lentinula edodes, 1kg of radix puerariae, and 0.4kg of pepper; the production technique comprises the steps: pretreating active ingredients, and carrying out high-temperature high-pressure sealed cooking, fine treatment, enzymolysis for flavor, mixing, spray drying, filling and capping. According to the production technique, the processes are simple, the energy consumption can be reduced, the loss of flavor components can be effectively reduced and sufficient release of flavor substances is promoted, the chicken powder is rich in chicken flavor, harmonious in saline taste, delicate flavor and perfume, luminous in color, good in rehydration property, smooth in mouthfeeling, free from sand grains, and milkily white in soup feeling.

The present invention relates to a graphene oxide / silver complex antibacterial material, the material is a chelate of silver organic or inorganic complex with graphene oxide. The structure formula of the material is as shown in the specification. The preparation method for the graphene oxide / silver complex antimicrobial material comprises the following steps: (1) dispersing graphene oxide powder into deionized water, obtaining a graphene oxide dispersion by ultrasonic fully releasing, adding a large pi bond water-soluble organic substance into the graphene oxide dispersion and mixing completely with ultrasound; (2) dissolving silver nitrate in water and adding sodium sulfite or sodium citrate into the solution to obtain a silver complex after the reactions; and (3)mixing the graphene oxide water solution obtained in step (1) with the silver complex obtained in step (2), and after the reaction, filtering the solution to obtain a precipitate. The stability of the graphene oxide is enhanced by combining small molecules formed by silver and the organic or inorganic complex with the graphene oxide. The anti-bacterial property is prolonged through a slow release performance.

The invention discloses a Chinese medicinal shinyleaf prickly ash root nourishing and itch-relieving shower gel, and relates to the technical field of daily chemical products. The shower gel is prepared from a cationic surfactant, an anionic surfactant, a conditioner, a nonionic surfactant, an ampholytic surfactant, a polyol moistening agent, a pearling agent, shinyleaf prickly ash root extract, natural tea extract, high-efficiency nourishing components, citric acid, sodium citrate, sodium chloride, essence, Kathon and proper water. The shower gel has basic cleaning effect, mild performance, low irritation to skin, and can be used for effectively nourishing skin, eliminating skin tension after shower and effectively relieving itch.

The invention provides grain jelly. Grains(oat, purple rice, barley, red beans, seed of Job's tears, corns, millet and black rice), fruits(mulberry, cherry, yellow peaches, apricots, oranges and apples), edible gums(xanthan gum, carrageenin, agar and gelatin) serving as a solidifying gum, and flavoring additives(salt, granulated sugar, gourmet powder, essences and sodium citrate) are mixed in a ratio to obtain the jelly. The grain jelly is transparent, good in taste, soft and fresh, and rich in nutrients, belongs to the low-calorie and high-cellulose food, and is rich in vitamins B, other vitamins and mineral substances; and the grain jelly has the effects of adjusting intestinal flora, improving the intestinal wetness and strengthening a digestive function.

The invention provides a composition of instant freeze-dried fibrinogen and thrombin preparation, a preparation method and a use thereof, and the composition comprises composition 1 composed of 35-70mg / ml of fibrinogen, 9-15mg / ml of sodium citrate, 7-12mg / ml of sodium chloride, 0.3-0.6mg / ml of polysorbate-80, 10-15mg / ml of mannitol, 4 -8mg / ml of arginine and 3.5-5.5mg / ml of glutamic acid by mg / ml and composition 2 composed of 700-1,200 mg / ml of thrombin, 3-6mg / ml of dextran 20, 15-25mg / ml of glycine, 5-7mg / ml of sodium chloride and 4-7mg / ml of calcium chloride by mg / ml. A sealant avoids the risk of spreading of AIDS virus, and the like, increases the drug stability, reduces the degeneration during the virus inactivation process by dry-heat method, protects biological activity, avoids local liquid storage of the using part caused by high permeability and the irritation of a large amount of inorganic salts to tissues, is conductive to the healing of trauma sites and ensures product safety and independent package to the maximum extent, thereby increasing storage time, facilitating use and meeting the clinical and field first-aid needs.