Preparation of triazine phytocide molecular imprinting solid phase extracting material
A solid-phase extraction material and molecular imprinting technology, which is applied in the analysis of materials, material separation, ion exchange, etc., can solve the problems of low mass spectrometry analysis, low mechanical strength, optimization, etc., and achieve the effect of accurate and reliable methods and saving experimental costs
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Embodiment 1
[0122] The preparation of the triazine herbicide molecularly imprinted solid-phase extraction material comprises the following steps:
[0123] 1. Preparation of suspension phase I
[0124] Take 0.8 g of butylmelamine, 1.1 g of α-methacrylic acid (MAA), 9.6 mL of ethylene glycol di(methacrylate) (EDGMA) and 0.33 g of azobisisobutyronitrile (AIBN), and dissolve them in 24 mL Chloroform, mix homogeneously, obtain suspension phase I;
[0125] Among them, butylmelamine was used as the imprinting template, α-methacrylic acid (MAA) was used as the functional monomer, ethylene glycol di(methacrylate) (EDGMA) was used as the crosslinking agent, and azobisisobutyronitrile (AIBN) was used as the initiator. Agent, trichloromethane as solvent;
[0126] The molar ratio of the imprinted template to the functional monomer is 1:3, the molar ratio of the cross-linking agent to the functional monomer is 4:1, the molar ratio of the initiator to the functional monomer is 1:6, the volumetric amou...
Embodiment 2
[0138] The preparation of the triazine herbicide molecularly imprinted solid-phase extraction material comprises the following steps:
[0139] 1. Preparation of suspension phase I
[0140] Take 1.5 g of butylmelamine, 2.1 g of α-methacrylic acid (MAA), 24 mL of ethylene glycol di(methacrylate) (EDGMA) and 0.79 g of azobisisobutyronitrile (AIBN), and dissolve them in 40 mL of three Chloromethane, mixed uniformly to obtain suspension phase I;
[0141] Among them, butylmelamine was used as the imprinting template, α-methacrylic acid (MAA) was used as the functional monomer, ethylene glycol di(methacrylate) (EDGMA) was used as the crosslinking agent, and azobisisobutyronitrile (AIBN) was used as the initiator. Agent, trichloromethane as solvent;
[0142] The molar ratio of the imprinted template to the functional monomer is 1:3, the molar ratio of the cross-linking agent to the functional monomer is 5:1, the molar ratio of the initiator to the functional monomer is 1:5, the volu...
Embodiment 3
[0154] The preparation of the triazine herbicide molecularly imprinted solid-phase extraction material comprises the following steps:
[0155] 1. Preparation of suspension phase I
[0156] Take 1.5 g of butylmelamine, 2.1 g of α-methacrylic acid (MAA), 29 mL of ethylene glycol di(methacrylate) ester (EDGMA) and 0.99 g of azobisisobutyronitrile (AIBN), dissolve in 36 mL Chloroform, mix homogeneously, obtain suspension phase I;
[0157] Among them, butylmelamine was used as the imprinting template, α-methacrylic acid (MAA) was used as the functional monomer, ethylene glycol di(methacrylate) (EDGMA) was used as the crosslinking agent, and azobisisobutyronitrile (AIBN) was used as the initiator. Agent, trichloromethane as solvent;
[0158] The molar ratio of the imprinted template to the functional monomer is 1:3, the molar ratio of the cross-linking agent to the functional monomer is 6:1, the molar ratio of the initiator to the functional monomer is 1:4, the volume of the solve...
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