Method for preparing molecular brand filling
A technology of molecular imprinting and polymerization, applied in chemical instruments and methods, chemical/physical/physical-chemical processes, solid solvent extraction, etc. and other problems, to achieve the effect of small column pressure, reducing dosage and improving separation efficiency
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[0042] 1. Experimental materials
[0043] 1.1 Source
[0044] Emodin was purchased from Huaian Jiutai Biochemical Co., Ltd., with a purity greater than 98%.
[0045]Acrylamide (AA), trimethylolpropane trimethacrylate (TRIM), and azobisisobutyronitrile (AIBN) were purchased from Bailingwei Chemical Reagent Company. TRIM was treated as follows before use: TRIM was washed with 10% aqueous sodium hydroxide solution, dried with anhydrous magnesium sulfate, and then redistilled under reduced pressure. AIBN was recrystallized from methanol before use.
[0046] Tetrahydrofuran (THF) is chromatographically pure, dried over sodium and redistilled before use. Methanol and acetonitrile are chromatographically pure, and acetic acid is analytically pure.
[0047] 500-mesh hollow glass microspheres, triethoxyvinylsilane and triethoxyaminoethylsilane were purchased from Qingdao Haid Chemical Reagent Company.
[0048] 0.75mm inner diameter PEEK tubes and various PEEK joints (concave and c...
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