Method for manufacturing body plate of refrigerator van

The invention relates to a method for manufacturing a body plate of a refrigerator van, which comprises the following steps of: flatly placing a fiber glass reinforced plastics veneer on a lower die; clinging the smooth surface of the fiber glass reinforced plastics veneer to a top panel of the lower die and tightly pressing the fiber glass reinforced plastics veneer; taking an upper die, and assembling, covering and clamping the upper die and the lower die together according to actual needs; placing the covered upper die and lower die on a supporting frame; pouring a pouring material required to be foamed into the upper die and the lower die from a die port; and sealing and fixing the port after pouring to ensure that the pouring material is fully foamed into a required shape.

Method for simultaneous extraction of sodium heparin and antibacterial peptide of pig intestinal mucosa

Method for extracting pig blood antibiotic peptide

The invention discloses a method for extracting porcine blood antibacterial peptide, which comprises following steps: firstly, dissolving porcine blood powder in buffer solution, then, adding papain into mixture to carry out enzymatic hydrolysis, adjusting the pH value of enzymolysis liquid to be 3.5-4.5, secondly, adding chloroform and sodium bisulfite into the enzymolysis liquid to decolorize, and then adjusting the pH value of the sodium bisulfite which is decolorized to be 6.0-7.0 and to form crude extracts of the porcine blood antibacterial peptide. Aiming at obtaining finished goods of the porcine blood antibacterial peptide, following purification steps are carried out to the crude extracts: firstly, freezing and drying the crude extracts of the porcine blood antibacterial peptide,enabling the crude extracts to pass through a gel-type cation exchange column, eluting the exchange column, collecting eluent, and secondly, freezing and drying the eluent in vacuum to form porcine blood ...

Corundum impeller and its making method

... the present invention adopts white alundum, epoxy resin and polysulfide rubber, etc. as raw material, and uses the processes of mixing, moulding, heat-insulating and pressing and demoulding to obtainthe invented white alundum blade wheel. Besides, the present invention also can be used for making the components for protecting bush of flotation machine, elbow pipe and angle head, etc.. which can be used in chemical production. Said invented products possess the advantages of high strength, resisting corrosion, resisting wear, light weight and low cost, etc..

Method for extracting pig blood antibiotic peptide

The invention discloses a method for extracting porcine blood antibacterial peptide, which comprises following steps: firstly, dissolving porcine blood powder in buffer solution, then, adding papain into mixture to carry out enzymatic hydrolysis, adjusting the pH value of enzymolysis liquid to be 3.5-4.5, secondly, adding chloroform and sodium bisulfite into the enzymolysis liquid to decolorize, and then adjusting the pH value of the sodium bisulfite which is decolorized to be 6.0-7.0 and to form crude extracts of the porcine blood antibacterial peptide. Aiming at obtaining finished goods of the porcine blood antibacterial peptide, following purification steps are carried out to the crude extracts: firstly, freezing and drying the crude extracts of the porcine blood antibacterial peptide, enabling the crude extracts to pass through a gel-type cation exchange column, eluting the exchange column, collecting eluent, and secondly, freezing and drying the eluent in vacuum to form porcine blood ...

Synchronous and indirect competitive immunological detection method and kit of plural small molecular compounds

The invention provides a synchronous and indirect competitive immunological detection method and a kit of plural small molecular compounds. The immunological detection method is a liquid phase immunological detection method which uses an encoded microsphere as a solid phase carrier and phycoerythrin as a fluorescent marker and is used for competitive specificity reactions of a small molecular compound antigen. Firstly, a captured antigen is covalently bound to the surface of the encoded microsphere, an indirect competitive fluorescent immune complex of microsphere-captured antigen-detected antibody-second antibody-phycoerythrin is formed in a filter film plate through capturing the antigen, detecting the antibody and binding the second antibody specificity, and then the indirect competitive fluorescent immune complex flows across a suspension chip or a detection region of a flow analysis system one by one, recognizes different encoded microspheres and detects the fluorescent intensity of ...