Molecular distillation, also known as short-path distillation, is a liquid-liquid separation technique carried out under high vacuum (10-1~101Pa). The utility model has the advantages of low distillation temperature, high vacuum degree of the system, short heating time of the material, high degree of separation, and the like, and the separation process is irreversible, and there is no boiling bubbling phenomenon. It is especially suitable for separating high boiling point, heat sensitive and easily oxidizable substances.
The composition of the molecular distillation equipment:
A complete molecular distillation unit consists mainly of feed systems, molecular distillers, heating systems, cooling systems, vacuum systems and control systems. In order to ensure the degree of vacuum, a two-stage pump is generally used in combination, and a liquid nitrogen cold trap is used to protect the vacuum pump.
Circulating water pump vacuum system of soul <br> <br> I produced the circulating water pump distillation experiments can provide a vacuum environment for the molecule. It is an important part of molecular distillation equipment. This product recycles water, saves water resources, solves the problem of insufficient water resources in some places, and is resistant to acid, alkali and solvent corrosion.
For the cooling system <br> <br> molecular distillation apparatus refers to an apparatus for cooling environment to provide molecular distillation equipment, such as: DL-400, DLSB series cryogenic coolant circulation pump. The lower the temperature, the smaller the cooling capacity. When you choose a cooling product, please select the product model with the matching temperature range and cooling capacity according to the required temperature range and experimental heat generation.
Enrofloxacin is a synthetic bacteriostatic agent of fluoroquinolones. It is easily soluble in organic solvents such as sodium hydroxide solution, methanol and Cyanomethane.
This product is a broad-spectrum bactericide with special effects on mycoplasma. It has bactericidal effect on Escherichia coli, Klebsiella, Salmonella, proteus, Pseudomonas aeruginosa, Haemophilus, Pasteurella multocida, Pasteurella haemolyticus, Staphylococcus aureus, Streptococcus, etc.
Enrofloxacin can be used as a drug for animals. It has a long half-life in animals and has good tissue distribution. It is a wide-ranging antibacterial agent. It has antibacterial effect on Gram-positive bacteria, negative bacteria and mycoplasma. It has been used in the control of Vibrio and colibacillosis diseases of cultured fish.
This product is a synthetic third-generation quinolone antibacterial drug, also known as ethyl ciprofloxacin. It was approved by FDA on October 4, 1996. It is a special quinolone antibacterial drug for livestock, poultry and aquatic products. It can combine with bacterial DNA gyrase subunit A, inhibit the cutting and connecting function of the enzyme, prevent the replication of bacterial DNA, and show antibacterial effect. It has broad-spectrum antibacterial activity and strong permeability. It has strong killing effect on Gram-negative bacteria and good antibacterial effect on Gram-positive bacteria. It has good oral absorption, high and stable blood drug concentration, and can be widely distributed in tissues. Its metabolite is ciprofloxacin, which still has strong antibacterial effect. It has strong antibacterial activity against almost all pathogenic bacteria of aquatic animals. It is effective for serious infection caused by drug-resistant pathogens, and has no cross resistance with other antibiotics.
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