39 results about "Glucose monohydrate" patented technology

A kind of low agglomeration aluminum nitride powder preparation method, comprising the following steps: S1: 50-60 parts of aluminum nitrate nine water, 60-80 parts of film-forming solution and 20-30 parts of glucose monohydrate are mixed uniformly, after stirring 1-2h, it is poured into polytetrafluoroethylene dish at room temperature 25 ℃ and is stationary 4-6h, and crosslinked film is obtained;S2: the crosslinked film obtained in step S1 is burned at 300-400 ℃ for 30-40 min in argon environment, calcined at 800-900 ℃ for 1-2h in ammonia environment, then at 900-1000 ℃, heat preservation 1-2h, finally at 1200-1400 ℃, calcined 1-2h, and aluminum nitride powder is obtained.The low agglomeration spherical aluminum nitride powder machine preparation method of the application, the particle size of the prepared aluminum nitride powder is fine, the agglomeration rate is low, the conversion rate is high and the specific surface area is large.

The invention relates to the technical field of microorganisms. The invention particularly discloses a culture medium and a preparation method and application thereof. Each liter of the culture medium comprises 3-8 g of L-asparagine, 0.3-1 g of buffer salt, 8-15 g of a carbon source, 50-100 mL of glycerin, 0.01-0.1 g of ferric ammonium citrate, 0.1-0.5 g of magnesium sulfate, 1-5 g of citric acid and the balance of water. Wherein the carbon source is selected from one or more of sodium pyruvate, glucose and glucose monohydrate; the buffer salt is selected from monopotassium phosphate and / or sodium dihydrogen phosphate. The culture medium is simple in component, wide in source and low in cost, and low-cost culture of mycobacteria can be achieved.