Water virus separation and extraction device and method for extracting Sapporo virus in water
An extraction device and virus separation technology, which is applied to the field of water virus separation and extraction devices, can solve the problem of easy air leakage of microbial filters, and achieve the effects of reducing the content of interfering components, high extraction efficiency and simple device structure.
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specific Embodiment approach 3
[0029] Specific implementation mode three: combination figure 1 , 2 As described with 3, the difference between this embodiment and the first embodiment is that the positive charge filter membrane is a NanoCeram positive charge filter membrane. The other structure and connection mode are the same as the first embodiment.
specific Embodiment approach 4
[0030] Specific embodiment four: This embodiment adopts the device in specific embodiment three for filtering and elution, and the specific extraction method is carried out according to the following steps:
[0031] Step 1. Load the water sample into the storage tank 2, close the top cover, and introduce nitrogen. The pressure in the storage tank 2 rises to 0.7 standard atmospheric pressure, and the control valve is opened to allow the water sample to flow through the filter to the membrane support. After all the water samples have passed through the positively charged filter membrane in the filter membrane holder, the injection is stopped, the nitrogen storage tank is closed, the tank body is depressurized, and a new storage tank is replaced;
[0032] Step 2. Add the beef extract solution with a pH value of 9.5-9.75 to the replaced storage tank, and then pass nitrogen gas. The pressure in the storage tank 2 rises to 0.7 standard atmospheric pressure, and the control valve is opened...
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