63 results about "Monosodium dihydrogen phosphate" patented technology

The invention provides non-spherical polymer particles uniform in particle size as well as a preparation method and an application of the non-spherical polymer particles. The non-spherical polymer particles are in the form of ellipsoids, short rods or fibers, and the interiors of the non-spherical polymer particles are of solid, hollow or porous structures; the short diameter of the non-spherical polymer particles ranges from 100nm to 30[micron]m, the long diameter of the non-spherical polymer particles is 1-60[micron]m, the ratio of the long diameter to the short diameter is 2-40, and the particle size distribution coefficient of the particles is less than 20%. The non-spherical polymer particles disclosed by the invention, which are uniform and controllable in particle size, are prepared by taking disodium hydrogen phosphate and / or sodium dihydrogen phosphate as a deformation inducing agent and by taking the influence of such conditions as the concentration of the disodium hydrogen phosphate and / or sodium dihydrogen phosphate, self-properties of a polymer, mass concentration of the polymer in an oil phase, the size of emulsion drops and the like into comprehensive consideration; the non-spherical polymer particles can be applied to various fields such as biological drug delivery, vaccine adjuvants, enzymatic catalysis, bio-separation, human tissue engineering field and the like; and the preparation method is simple to operate, mild in condition and easy for industrial enlarged production.

The invention discloses a culture medium for enriching salmonella, shigella and staphylococcus aureus in a composite way and a preparation method thereof. The culture medium comprises 13-16 parts of tryptone, 4-7 parts of soy peptone, 2-3 parts of monosodium orthophosphate, 2-3 parts of glucose, 1,000 parts of distilled water, 0.07-0.13 part of bile salt, 25-40 parts of sodium chloride, 0.4-1 part of lithium chloride, 1.5-3.5 parts of mannite and 0.0002-0.0004 part of potassium tellurite, and the pH of the culture medium is 7.1-7.3. The culture medium can be used for restraining the growth of other pathogenic microorganisms while enriching three target pathogenic bacteria simultaneously, can be directly applied to separate culturing of target bacteria and biological assay experiments, and can be directly applied to a detection technology for a plurality of pathogenic bacteria based on one detection platform such as multiple PCRs (Polymerase Chain Reactions) and the like for making a diagnosis report.

The invention discloses a composition and preparation method of a deslanoside injection. According to formulation composition, the composition consists of deslanoside, ethanol, glycerin, sodium dihydrogen phosphate, disodium hydrogen phosphate and water for injection,wherein the use amount of the sodium dihydrogen phosphate is 0.02-0.8 g / ml, and the use amount of the disodium hydrogen phosphate is0.01-0.1 g / ml. The deslanoside injection disclosed by the invention is stable in quality, can tolerable hot pressurized sterilization, and F0 value is not less than 12; the sterility assurance levelis high, the process of the deslanoside injection is simple and efficient and the quality is controllable.

The invention discloses a lysostaphin compound enzyme disinfectant comprising the following components in parts by weight: 1.1-10 parts of lysostaphin, 1.1-10 parts of antimicrobial peptide, 1.1-10 parts of chlorhexidine acetate, 10-20 parts of sorbitol, 1.1-10 parts of sodium dihydrogen phosphate and 1.1-10 parts of disodium hydrogen phosphate. The lysostaphin compound enzyme disinfectant has the advantages of high disinfection efficiency, good disinfection effect, easy storage and stable performance. The invention further discloses a preparation method of the lysostaphin compound enzyme disinfectant. The preparation method mainly comprises the following steps: 1) dissolving the lysostaphin, the antimicrobial peptide and the chlorhexidine acetate in water, mixing the solutions, and shaking uniformly; 2) adding sorbitol into the solution obtained in the step 1), and shaking uniformly; and 3) dissolving the sodium dihydrogen phosphate and the disodium hydrogen phosphate in distilled water, stirring uniformly, adding the obtained solution into the solution obtained in the step 2), and shaking uniformly to obtain the lysostaphin compound enzyme disinfectant. The preparation method has the advantages of simple process and strong operability.

The invention provides polyphosphate capable of regulating and controlling hair growth and a preparation method thereof. The polyphosphate comprises dihydric phosphate and dibasic hydrogen phosphate: the dihydric phosphate comprises one or more of sodium dihydrogen phosphate, monopotassium phosphate and monocalcium phosphate, and the total proportion of the dihydric phosphate is 20-100%; and the dibasic hydrogen phosphate comprises one or more of disodium hydrogen phosphate, dipotassium phosphate and dicalcium phosphate, and the total proportion of the dibasic hydrogen phosphate is 0-80%. The preparation process comprises the following steps: carrying out preheating treatment at 400-500 DEG C, heating to 1000-1300 DEG C, carrying out heat preservation treatment, finally carrying out quenching treatment to obtain the product, and performing ball milling according to the use performance of the material to obtain samples with different sizes. The invention overcomes the defects of the prior art, has an important effect of regulating and controlling hair growth through specific proportion matching of the dihydric phosphate and the sodium dihydrogen phosphate, and is suitable for anti-hair loss and hair growth products.

An oral care composition is disclosed comprising from 0.01 to 50% by weight of a calcium source, a water soluble phosphate source, a water soluble silicate source and from 0.01 5 to 10% by weight of an amino acid or its physiologically acceptable salt or a mixture thereof, wherein the calcium source is calcium hydroxide, calcium oxide, calcium glycerophosphate, calcium lactate, calcium sulfate, calcium salts of citric acid, calcium chloride, calcium nitrate, calcium acetate, calcium gluconate, calcium formate, calcium malate, calcium propionate, calcium butyrate, calcium bicarbonate, monocalcium phosphate anhydrous, dicalcium phosphate anhydrous, tricalcium phosphate, octacalcium phosphate, calcium silicate, calcium carboxymethyl cellulose, calcium alginate, calcium carbonate or mixtures thereof; wherein the phosphate source is trisodium phosphate, monosodium dihydrogen phosphate, disodium hydrogen phosphate, ammonium phosphate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate, tripotassium phosphate, monopotassium dihydrogen phosphate, dipotassium hydrogen phosphate or a mixture thereof; wherein the silicate source is sodium silicate, potassium silicate, tetraethylorthosilicate, tetraethylsilicate or mixtures thereof; and wherein the amino acid is selected from acidic amino acid, neutral amino acid or a mixture thereof.

The invention relates to the field of metronidazole medicines and discloses medicine injection for treating anaerobic bacterium infection and a preparation method thereof. The injection is prepared from the following components based on the total weight of the injection: (1) 0.2 to 0.5 weight percent of metronidazole; (2) 4 to 8 weight percent of glucose; (3) 0.01 to 0.08 weight percent of citricacid; (4) 0.05 to 0.3 weight percent of sodium dihydrogen phosphate; (5) 0.1 to 2 weight percent of disodium hydrogen phosphate; (6) 90 to 95 weight percent of injection water. The medicine injectionfor treating the anaerobic bacterium infection, provided by the invention, has good stability.