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西曲依丁选择性分子印迹聚合物 SPE。

Citrinin selective molecularly imprinted polymers for SPE.

机构信息

State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, PR China.

出版信息

J Sep Sci. 2010 Apr;33(8):1156-60. doi: 10.1002/jssc.200900652.

DOI:10.1002/jssc.200900652

PMID:20175088

Abstract

Molecularly imprinted polymers (MIPs) for citrinin (Cit) with 1-hydroxy-2-naphthoic acid (HNA) as mimic template were prepared and the molecularly imprinted SPE method was developed for the detection of Cit in rice with HPLC. The adsorption properties of HNA and Cit on the MIPs and nonimprinted polymers were investigated. It proved that MIPs showed higher selectivity adsorption to HNA and Cit than nonimprinted polymers were. The recoveries of Cit in rice were in the range of 86.7-97.7%. The spiked rice samples and five rice samples in Beijing market were detected using molecularly imprinted SPE method and satisfied results were obtained as discussed in this article.

摘要

以 1-羟基-2-萘甲酸（HNA）为模板分子合成了桔青霉素（Cit）的分子印迹聚合物（MIPs），并建立了高效液相色谱法检测大米中Cit 的分子印迹固相萃取（MISPE）方法。考察了 HNA 和 Cit 在 MIPs 和非印迹聚合物上的吸附性能。结果表明，MIPs 对 HNA 和 Cit 具有更高的选择性吸附能力。大米中 Cit 的回收率在 86.7%-97.7%之间。采用分子印迹 SPE 法对北京市场上的 5 个大米样品和 1 个加标大米样品进行了检测，结果令人满意。