赭曲霉毒素A
化学
分子印迹
分子印迹聚合物
检出限
色谱法
吸附
选择性
线性范围
聚合物
微球
化学工程
有机化学
真菌毒素
食品科学
工程类
催化作用
作者
Menghua Dou,Siwei Wang,Wei Li,Qianjin Li,Jianhong Xu,Jianlin Li
标识
DOI:10.1016/j.chroma.2023.463932
摘要
Development of selective enrichment materials for the accurate analysis of ochratoxin a (OTA) in environmental and food samples is an effective way to protect human health. Here, a molecularly imprinted polymer (MIP) known as plastic antibody was synthesized onto the magnetic inverse opal photonic crystal microsphere (MIPCM) using a low-cost dummy template imprinting strategy targeting OTA. The MIP@MIPCM exhibited ultrahigh selectivity with an imprinting factor of 130, high specificity with cross-reactivity factors of 3.3-10.5, and large adsorption capacity of 60.5 μg/mg. Such MIP@MIPCM was used for selective capture of OTA in real samples which was quantified in combination with high-performance liquid chromatography, giving a wide linear detection range of 5-20,000 ng/mL, a detection limit of 0.675 ng/mL, and good recovery rates of 84-116%. Moreover, the MIP@MIPCM can be produced simply and rapidly and is very stable under different environmental conditions and easy to store and transport, so it is an ideal substitute of biological antibody modified materials for the selective enrichment of OTA in real samples.
科研通智能强力驱动
Strongly Powered by AbleSci AI