Citation: GUO Huihua, CHEN Gang, MA Jiutong, JIA Qiong. Preparation of microporous organic polymer-based solid phase microextraction fiber and application to the determination of organochlorine pesticides[J]. Chinese Journal of Chromatography, ;2017, 35(3): 318-324. doi: 10.3724/SP.J.1123.2016.10030 shu

Preparation of microporous organic polymer-based solid phase microextraction fiber and application to the determination of organochlorine pesticides

College of Chemistry, Jilin University, Changchun 130012, China

Received Date: 10 October 2016

Fund Project: Open Project of State Key Laboratory of Supramolecular Structure and Materials, Jilin University (No. sklssm201617).

In the present work, a microporous organic polymer (MOP) was prepared with 1,3,6,8-tetrakis(p-formylphenyl)pyrene and melamine as monomers. The MOP material was adhered on a stainless steel fiber for headspace solid phase microextraction (HS-SPME). By combining with gas chromatography-electron capture detection, an online method was developed for the determination of organochlorine pesticides (OCPs) in rice samples. Four experimental parameters affecting the preconcentration efficiency were investigated in details. Under the optimum experimental conditions, extraction temperature of 80℃, extraction time of 25 min, NaCl mass concentration of 200 g/L, and desorption time of 6 min, high enrichment factors of 115-318 were achieved. The MOP-based fiber exhibited good linearity for OCPs in the range of 0.05-50 μg/kg. The detection limits ranged from 2.4 ng/kg to 11.3 ng/kg with relative standard deviations of 1.3%-13.1% for the same fiber and 2.3%-13.6% for different fibers. The developed method was proved to be simple and rapid and to be applied to the determination of trace amount of OCPs in rice samples.
- microporous organic polymers,
- solid phase microextraction (SPME),
- gas chromatography (GC),
- organochlorine pesticides (OCPs),
- rice
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沈阳化工大学材料科学与工程学院沈阳 110142