Two-phase integral column as well as preparation and application thereof
A monolithic column and monolithic material technology, applied in other chemical processes, chemical instruments and methods, material separation, etc., to achieve the effects of easy fabrication, increased column length, and efficient separation
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[0023] 1. Preparation of two-phase capillary monolithic column
[0024] Such as figure 2 As shown, a 10 cm long strong cation exchange material and a 65 cm long strong hydrophobic material were successively synthesized in a capillary with an inner diameter of 100 microns and a length of 75 cm.
[0025] 1. Capillary Pretreatment
[0026] First wash the capillary empty column with 0.1M NaOH solution for 1h, then rinse the capillary with deionized water until the pH of the effluent liquid is 7.0, then rinse the capillary with 0.1M HCl solution for 4h, and then rinse the capillary with deionized water until the pH of the effluent liquid is 7.0, then rinse the capillary column with methanol solution for 10 min, and dry it with nitrogen. A mixture of methanol and methacryloxypropyl-trimethoxysilane was injected into the capillary. React at a temperature of 20°C to 70°C for 5-24 hours. Then rinse with methanol and water. Finally, dry it with nitrogen gas.
[0027] 2. Synthesis...
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