Rapid extraction of domoic acid by a magnetic molecularly imprinted silica before HPLC measurement

被引：4

作者：

Lin, Zhengzhong ^{[1
]}

Chen, Shengyang ^{[1
,2
]}

Li, Lei ^{[1
]}

Peng, Aihong ^{[1
]}

Huang, Zhiyong ^{[1
]}

机构：

[1] Jimei Univ, Coll Food & Biol Engn, Xiamen 361021, Peoples R China

[2] Fuzhou Univ, Coll Biol Sci & Engn, Fuzhou 350108, Fujian, Peoples R China

来源：

HELIYON | 2020年 / 6卷 / 10期

关键词：

Analytical chemistry; Molecularly imprinted silica; Magnetic; Sol-gel; HPLC; Domoic acid; SOLID-PHASE EXTRACTION; POLYMER;

D O I：

10.1016/j.heliyon.2020.e05287

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A magnetic molecularly imprinted silica solid was obtained by sol-gel polymerization for the separation of domoic acid. The solid showed rapid adsorption kinetics with an adsorption equilibrium time of 5 min. The solid showed affinity to domoic acid under the interference of tryptophan and could be repeatedly used for 5 times at least. The solid was used as a solid-phase-extraction sorbent for the extraction of domoic acid from clam samples before measurement with liquid chromatography. The detection limit of 0.20 mg kg(-1) was lower than the allowable limits in several countries or areas. The recoveries in the spiked samples were 88% approximately.

引用

页数：6

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