30 results about "Percent sodium chloride" patented technology

The invention relates to a brushed high-strength abrasion-resistant anticorrosive coating. The component A of the coating comprises 80 to 100 parts of mixed epoxy resin, 10 to 15 parts of toughening agent, 5 to 10 parts of diluent, 60 to 100 parts of ceramic powder, 5 to 10 parts of quartz powder, 20 to 30 parts of titanium white powder, 5 to 10 parts of fumed silica, 0.1 to 0.5 part of de-foaming agent, 0.1 to 0.5 part of flatting agent, and 0.1 to 0.5 part of wetting dispersant. The component B comprises 40 to 50 parts of mixed amine curing agent, 2 to 5 parts of epoxy accelerant, and 2 to 5 parts of silane coupling agent. The coating is easy to construct and easy to operate, and the coating does not contain volatile solvents and has low smell and low harm to a human body; the coating has extremely high adhesion after being cured, and can resist erosion of different media such as 40 percent sulfuric acid, 30 percent hydrochloric acid, 20 percent sodium hydroxide, 10 percent sodium chloride and engine oil and abrasion and cavitation of different mines such as drifting sand, gas dust and mud.

The invention discloses a water-retaining method for frozen peeled shrimps, which comprises the following steps of: removing heads and shells of shrimps, sterilizing with ozone water with the ozone concentration of 1-1.5mg/L for 1 to 5 minutes, and controlling the temperature of the ozone water below 10 DEG C; taking the peeled shrimps out, soaking in sterile water containing 0.5 to 0.45 mass percent sodium chloride, 0.25 to 0.75 mass percent food-level trehalose and 0.5 to 1.5 mass percent sodium alginate lysate for 30 to 50 minutes, controlling the water temperature at about 4-10 DEG C and the water amount 1.5 to 2 times weight of the peeled shrimps, taking the peeled shrimps out, and freezing until the core temperature is below -18 DEG C to obtain the frozen peeled shrimp products. In the method, a phosphorus-free water-retaining agent is adopted to process the peeled shrimps for the first time to fulfill the aim of retaining water; and the technology changes the traditional phosphate water-retaining process for the frozen peeled shrimps, solves the problems of water loss and color change in the freezing storage process, avoids the unpleasant metal astringency of the peeled shrimp products and unfavorable human health events caused by the conventional phosphate water-retaining agent, improves the quality appearance and price of the peeled shrimp products, and promotes the economic benefit of the peeled shrimp products.

The invention provides a method for producing high-purity inulin, which comprises the following steps of: a, performing cleaning, shredding, countercurrent leaching, flocculation and impurity removal, and filtration on jerusalem artichoke or chicory serving as a raw material to obtain inulin feed solution; b, making the inulin feed solution obtained in the step a pass through macroporous decolorization resin, strong acid resin, and strong base resin for decoloration in turn at a linear speed of 2-3 meters/second, and performing ion exchange to obtain inulin solution, wherein the macroporous decolorization resin, the strong acid resin, and the strong base resin are respectively added with 8 to 12 weight percent sodium chloride solution in an amount which is 2 to 4 times volume thereof for regeneration; and c, performing nanofiltration on the inulin solution by using a nanofiltration membrane, eluting monosaccharide and sodium chloride by using purified water, concentrating, and performing spray drying to obtain the product. The method has the advantages of avoiding hydrolysis caused by reduced pH value of the inulin solution, regenerating and recycling ion exchange resin, and realizing comprehensive utilization, clean production and pollution-free emission in the whole production process.

The invention discloses a preparation method of hazelnut shell brown pigment, which comprises the following steps that: two to six times of 0.5 to 3 percent sodium chloride water solution is added to be uniformly mixed after hazelnut shell is smashed, the temperature is adjusted to 30 to 50 DEG C, 1 to 4 percent sodium hydroxide solution with the volume being two to six times of that of the original solution after the temperature is maintained for 40 to 80 minutes, the temperature is adjusted to 50 to 70 DEG C and is continued to be maintained and continuously mixed so as to perform the extraction for 2 to 3 hours, then the extracted liquid is cooled, the pH value is adjusted, the extracted liquid is concentrated after being centrifuged, absolute ethyl alcohol is added into the extracted liquid to be centrifuged, the upper clean liquid is vacuum concentrated, is purified by macroporous resin, is concentrated, frozen and dried to obtain the brown powder-shaped hazelnut shell pigment. The source of the raw material adopted in the method is abundant, and the raw material is sourced from the waste of the agriculture and forestry. Through the technical conversion of the method, the economic added value of the waste such as the hazelnut shell can be effectively improved, thereby having important significance on promoting the development of the hazelnut production and processing industry.

The invention discloses an injection containing Pidotimod sodium. Pidotimod and sodium hydroxide in equal mol are reacted in water or alcohol or mixed liquid of the water and the alcohol to generate the Pidotimod sodium, and then the Pidotimod sodium is prepared into the injection. The chemical name of the Pidotimod sodium is (R)-3-[(S)-(5-oxy-2-pyrrolidinyl) carbonyl]-thiazolidine-4-sodium carboxylate, the molecular formula is C9H11N2O4SNa, and the molecular weight is 266.28. The injection is characterized in that the active component Pidotimod in the injection exists in the form of Pidotimod sodium salt, and pH value of the solution is between 4 and 6. The injection can be prepared into transfusion solution for intravenous administration, and can be added into injection containing 5 percent glucose or 0.9 percent sodium chloride and into dissolvent crystallization subpackaged powder injection and frozen dried powder injection.

The invention relates to a composition of two antibiotics, in particular to a composition of fosfomycin and arginine and another composition of fosfomycin arginine salt and arginine. The composition of fosfomycin and arginine consists of the fosfomycin and the arginine, wherein the optimal weight ratio of the fosfomycin to the arginine is 1:2.5. The composition of fosfomycin arginine salt and arginine consists of the fosfomycin arginine salt and the arginine, wherein the optimal weight ratio of the fosfomycin arginine salt to the arginine is 1.6:1. Both compositions can be prepared into powder injection for injection; neither compositions contains sodium ions, so that hypernatremia is not caused; and after being dissolved in 5 percent glucose or 0.9 percent sodium chloride solution, the composition can be compatible with a quinolone antibiotic for use. Thus, the composition has a wider and safer application range and is more stable and convenient to use.

The invention discloses a test box for rapidly detecting the activity of antithrombin of leeches. The test box comprises a 0.9 percent sodium chloride solution, a trihydroxymethyl aminomethane hydrochloric acid buffering solution containing 0.5 percent fibrinogen and a prepared thrombin solution. The invention further discloses a detection method for rapidly detecting the activity of the antithrombin of the leeches; the detection method comprises the following steps: 1) weighing and chopping the leaches and putting the leaches into the sodium chloride solution; 2) extracting and centrifuging;3) adding the trihydroxymethyl aminomethane hydrochloric acid buffering solution; 4) dropwise adding the prepared thrombin solution; 5) calculating; 6) calibrating according to environment temperature. The test box and the detection method can be used for rapidly detecting the activity of the antithrombin in the leeches, have the advantages of accurate detection result, low equipment requirementsand rapid detection, and can be suitable for outdoor on-site operation.

The invention discloses a traditional Chinese medicine composition for animal anesthesia and a preparation method of the traditional Chinese medicine composition. The traditional Chinese medicine composition is prepared from the following medicinal material slices in parts by weight: 5 to 30 parts of flos daturae, 4 to 13 parts of flos rhododendri, 7 to 15 parts of radix aconiti carmichaeli, 1 to8 parts of semen hyoscyami, 3 to 7 parts of venenum bufonis and 2 to 5 parts of rhizoma acori tatarinowii. The preparation method comprises the following steps: after pulverizing the six medicinal material slices through an ultrafine pulverizer, immersing the medicinal materials for 3h by utilizing warm water with the temperature of 60 DEG C, and filtering by utilizing double-layer filter paper; then boiling a concentrated solution extracted through ethanol for three times and sterilizing; centrifuging and taking supernatant; regulating the supernatant to be isotonic by utilizing 0.9 percent sodium chloride and making the volume constant; regulating the pH (Potential of Hydrogen) to 6.8 to 7.0; filtering by utilizing a micropore filter membrane and sterilizing; sterilely filling to form medicinal injection for later use. The traditional Chinese medicine composition disclosed by the invention has relatively good calming, pain easing and anesthetic actions and has an obvious inhibition effect on a central nervous system, and the effective rate reaches 66.7 percent to 93.3 percent; the traditional Chinese medicine composition has high safety performance, basically has no toxic and side effects and no residues, is suitable for clinical popularization and application, and can be industrially produced in a large scale.

The invention relates to an improved method for preparing ceftiofur. The method comprises the following steps of: adding 7-amino-3-[2-(furylcarbonyl)thiomethyl]-3-cephem-4-carboxylic acid into a solvent system, adding triethylamine and reacting for 30 minutes; regulating the temperature of the system, adding 2-methoxyimino-2-(2-amino-4-thiazolyl)-(z)-thioacetic acid benzothiazole ester and reacting for 4 hours; adding tap water for extracting after reaction is finished, performing back extraction on a water phase by using a mixed solvent, treating the obtained organic phase by using a 10 percent sodium chloride solution, and adding distilled water into the organic phase; and regulating the pH of the system to 7-8 by using sodium bicarbonate, regulating the pH of the water phase to 3-4 by using acetic acid, filtering, and separating to obtain the ceftiofur. The yield of the ceftiofur prepared by the method is 64.5 percent, and the purity of the ceftiofur is 99.6 percent (high performance liquid chromatography HPLC).

The invention relates to a passivation solution. The passivation solution comprises a solvent and a solute, wherein the solvent is water; and 18.75+/-1g of sodium hydroxide, 20.65+/-1g of sodium phosphate, 50+/-2g of phosphoric acid and 100+/-4g of potassium dichromate are added into each 1,000g of water. A micro shaft made of a martensitic stainless steel material can be subjected to a salt spray test at the temperature of 35 DEG C under the condition of 5 percent sodium chloride and cannot be corroded within about 60 hours after being passivated by the passivation solution, and the passivation solution has high corrosion resistance; and in addition, a substrate cannot be subjected to hydrogen embrittlement by the passivation solution, and the passivation solution does not have any adverse effect on other performance of the substrate, so that the strength of the substrate is still kept unchanged while the corrosion resistance of the substrate is improved.

The invention provides a de-coloring method of cotton. The de-coloring method comprises the specific steps: (1) loosening the cotton; stirring and scattering a pre-washing solution until the moisture of the cotton reaches 40 percent to 60 percent, wherein a pre-washing agent is prepared from 10 to 20 parts of 30 percent hydrochloric acid solution, 5 to 10 parts of 5 percent organic phosphonic acid solution, 5 to 10 parts of 8 percent sodium chloride solution and 50 to 80 parts of water; (2) washing with an enzyme: adding the pre-washed cotton into an enzyme washing agent, wherein the enzyme washing agent is prepared from 10 to 20 parts of mercerized proteinase, 10 to 20 parts of a non-ionic washing agent, 10 to 20 parts of a caustic soda flake and 80 to 100 parts of water; immersing at room temperature for 2 to 3 hours; (3) after washing with water, adding into an oxygen bleaching agent, wherein the oxygen bleaching agent is prepared from 3 to 5 parts of an oxygen bleaching stabilizer, 10 to 20 parts of hydrogen peroxide and 80 to 100 parts of water; (4) washing with the water for a plurality of times and drying. The de-coloring method of the cotton is short in period, high in efficiency and low in cost; the treated cotton has good whiteness, less weight loss, small strength loss and good hand feeling and is easy to spin and weave.

The invention relates to an anti-infective medicinal cefotiam hydrochloride composition, and belongs to the technical field of medicines. The composition consists of cefotiam hydrochloride and sodium chloride; the cefotiam hydrochloride is crystals; an X-ray powder diffraction pattern obtained by measuring the crystals by using Cu-K alpha rays is shown as figure 1. The new crystal form of the cefotiam hydrochloride provided by the invention is different from the crystal form structure in the prior art; through experimental verification, people surprisingly find that the crystal compound is high in purity, high in mobility, high in stability and low in polymer content, and does not have hygroscopicity; after prepared powder-injection is matched with 0.9 percent sodium chloride injection, 5 percent dextrose injection, and 5 percent sodium chloride and dextrose injection and is then placed for 4 hours, the stability of the solution is high.

The invention discloses a total pyrogen detection method of pyrogenicsubstance content in injection. The method is characterized in that the method comprises the following steps: a) preparing human whole blood test liquid; b) diluting bacterial endotoxin working standard product by normal saline, namely 0.9 percent sodium chloride injection to carry out linear investigation, thereby obtaining a standard curve; c) selecting a proper injection dilution concentration; d) determining the content of pyrogenicsubstance in an injection sample; and e) judging whether the pyrogenicsubstance in the injection sample exceeds standard, during which, the content of pyrogenicsubstance in the injection sample is compared with the concrete standard specifications of pyrogenicsubstance so as to reach a conclusion whether the safety quality inspection of the pyrogen of the injection sample is qualified. The total pyrogen detection method is suitable for the detection of all pyrogen substances; moreover,the method not only can control medicine pyrogen substances, but also can substantially reduce the cost of animal test, thereby improving medication safety for patients and having enormous market space and economic benefits.

The invention provides a method for synergistically immobilizing L-arabinose isomerase and ionic liquid. Acrylic fibers are used as a carrier to synergistically immobilize ion liquid and L-arabinose isomerase. The method comprises the following steps: adding acrylic fibers, a compound I and 30mL of deionized water into a three-opening bottle, refluxing, taking out a fiber test sample, suction filtering, washing by using water, air drying, vacuum drying, and obtaining PANF-I, wherein a molecular formula of the compound I is H2N(CH2)nCH2NH2; stirring the dry PANF-I in an HY acid solution, takingout the formed fiber immobilized ion liquid, suction filtering, sprinkling, air drying, and drying; and adding PANF-II and 5mL of freeze enzyme solution into a cross-linking agent, oscillating cross-linking, pouring out the solution, washing the immobilized enzyme particles separately by using 0.9 percent sodium chloride and deionized water, suction filtering, and drying, thus obtaining the immobilized enzyme, and storing at a low temperature. According to the method, the acrylic fibers are adopted as the carrier to synergistically immobilize the ethylamine nitrate ion liquid and L-arabinoseisomerase. The method is mild in condition, high in yield, simple in method, and easy in mass preparation.

The invention discloses a method for extracting isoborreverine. The method is characterized by comprising the following steps of: crushing the overground part of borreria verticillata(L.), performing reflux extraction by using acid alcohol, after extraction liquor is concentrated, loading onto a cation exchange resin column, eluting by using water to remove impurities, eluting by using a 2 to 5 percent sodium chloride aqueous solution, collecting sodium chloride eluent until alkaloid reaction is negative, desalting, and concentrating to obtain total alkaloid extract; and uniformly mixing the extract and alumina powder, loading to an alumina column, eluting stepwise by using mixed organic solvents in different ratios and collecting high-content isoborreverine fractions stepwise, mixing and concentrating under reduced pressure, and separating and purifying by a high-speed counter-current chromatography to obtain a high-content isoborreverine product. By the method, the isoborreverine can be separated and purified quickly and efficiently, the product is high in content, the cost can be reduced effectively, and environmental pollution can be reduced.