Core-shell rhodamine 6G molecularly imprinted solid phase extraction magnetic material, and preparation method and application thereof

Abstract

The invention discloses a core-shell rhodamine 6G molecularly imprinted solid phase extraction magnetic material, and a preparation method and application thereof. According to the molecularly imprinted solid phase extraction magnetic material, surface-aminated Fe3O4 nano-particles serve as a magnetic core, and a rhodamine 6G molecularly imprinted polymer membrane serves as a shell. The core-shell rhodamine 6G molecularly imprinted solid phase extraction magnetic material has a memory function for a three-dimensional structure of rhodamine 6G molecules, and rhodamine 6G can be specifically and selectively separated and enriched. The core-shell rhodamine 6G molecularly imprinted solid phase extraction magnetic material is applied to selective adsorption and dynamic extraction and separation of a trace amount of rhodamine 6G in the food sample analysis pretreatment; the rhodamine 6G can be quickly separated and detected; according to the method, the recovery rate is high and the relative standard deviation is small; the core-shell rhodamine 6G molecularly imprinted solid phase extraction magnetic material has the characteristics of small using amount of organic solvents, simplicity, quickness and high efficiency in operation, and the like.

Description

technical field

[0001] The invention belongs to the technical field of food safety detection, and in particular relates to a core-shell type rhodamine 6G molecularly imprinted solid-phase extraction magnetic material and a preparation method and application thereof. Background technique

[0002] Rhodamine 6G (Rhodamine6G), also known as Ruixianghong 6G, rose red 6G, yellow light basic Ruixianghong, its molecular formula is C 28 h 31 ClN 2 o 3 , with a relative molecular weight of 479, it is a red or yellow-brown powdery artificial synthetic dye, soluble in water for scarlet with green fluorescence, soluble in alcohol for red with yellow fluorescence or yellow-red with green fluorescence. Rhodamine 6G is a commonly used indicator and biological dye, which is widely used in steel, environmental protection and other detection fields, and is also used in the dyeing of textiles, leather, and paper. Rhodamine 6G is a non-edible substance, which has potential carcinogenic, tera...

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