Auramine O molecular imprinting solid phase extraction capillary column, and preparation method and application thereof
A technology of capillary column and molecular imprinting, which is applied in the preparation of test samples, separation of materials, analysis of materials, etc., to achieve the effects of avoiding the use of organic reagents, good continuity and uniformity, and avoiding damage
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Embodiment 1
[0041]
[0042] S1. Weigh 0.06 g of pure basic yellow O, put it in a 10 mL Erlenmeyer flask, add 0.1 mL methacrylic acid (MAA), and oscillate, so that the template molecule basic yellow O and the functional monomer MAA are fully mixed, Then add ternary porogen methanol, toluene and n-dodecyl alcohol to it, and after they are fully mixed, add 0.8 mL of cross-linking agent ethylene glycol dimethacrylate (EDMA) to it, and ultrasonicate for 5 min to make it Become a homogeneous system, then add about 30 mg of initiator azobisisobutyronitrile (AIBN) to it, and pass nitrogen gas for 15 minutes to remove oxygen;
[0043] S2. Use a pretreated glass capillary (inner diameter 0.5 mm, length 100 mm) to absorb the solution, seal both ends of the tube with rubber stoppers, and then place it under ultraviolet light with a wavelength of 316 nm, a power of 36 W, and an irradiation distance of 15 cm for polymerization. React in ice bath for 12 h to obtain the basic Nenhuang O molecularly im...
Embodiment 2
[0050]
[0051] S1. Weigh 0.06 g of pure basic yellow O, put it in a 10 mL Erlenmeyer flask, add 0.15 mL methacrylic acid (MAA), and oscillate, so that the template molecule basic yellow O and the functional monomer MAA are fully mixed, Then add ternary porogen methanol, toluene and n-dodecyl alcohol to it, and after they are fully mixed, add 0.8 mL of cross-linking agent ethylene glycol dimethacrylate (EDMA) to it, and ultrasonicate for 5 min to make it Become a homogeneous system, then add about 40 mg of initiator azobisisobutyronitrile (AIBN) to it, and pass nitrogen gas for 20 minutes to remove oxygen;
[0052] S2. Use a pretreated glass capillary (inner diameter 0.3 mm, length 50 mm) to absorb the solution, seal both ends of the tube with rubber stoppers, and then place it under ultraviolet light with a wavelength of 316 nm, a power of 36 W, and an irradiation distance of 15 cm for polymerization. React in an ice bath for 10 h to obtain a capillary column for molecular...
Embodiment 3
[0059]
[0060] S1. Weigh 0.06 g of pure basic yellow O, put it in a 10 mL Erlenmeyer flask, add 0.1 mL methacrylic acid (MAA), and oscillate, so that the template molecule basic yellow O and the functional monomer MAA are fully mixed, Then add ternary porogen methanol, toluene and n-dodecyl alcohol to it, and after they are fully mixed, add 0.8 mL of cross-linking agent ethylene glycol dimethacrylate (EDMA) to it, and ultrasonicate for 5 min to make it Become a homogeneous system, then add about 30 mg of initiator azobisisobutyronitrile (AIBN) to it, and pass nitrogen gas for 15 minutes to remove oxygen;
[0061] S2. Use a pretreated glass capillary tube (inner diameter 0.8 mm, length 150 mm) to absorb the solution, seal both ends of the tube with rubber stoppers, and then place it under ultraviolet light with a wavelength of 316 nm, a power of 36 W, and an irradiation distance of 15 cm for polymerization. After reacting in ice bath for 10 h, the capillary column for molec...
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