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Citation: CAO Wei-Xin, YANG Bi-Yi, QI Fei-Fei, QIAN Liang-Liang, XU Qian. Simultaneous Extraction of Atrazine and Its Toxic Metabolites Based on Functionalized Polyacrylonitrile Nanofiber Mat[J]. Chinese Journal of Analytical Chemistry, ;2017, 45(4): 495-501. doi: 10.11895/j.issn.0253-3820.160831 shu

Simultaneous Extraction of Atrazine and Its Toxic Metabolites Based on Functionalized Polyacrylonitrile Nanofiber Mat

Key Laboratory Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China

Received Date: 14 November 2016
Revised Date: 25 January 2017

Fund Project: This work was supported by the National Natural Science Foundation of China (Nos.81172721, 81473019)

A novel solid-phase extraction (SPE) adsorbent for simultaneous extraction of atrazine (ATZ) and its metabolites, deisopropylatrazine (DIA) and deethylatrazine (DEA) from environmental water samples was prepared. Polyacrylonitrile nanofibers (PAN NFs) mat was prepared via electrospinning, and was further functionalized to obtain polypyrrole modified polyacrylonitrile nanofibers (PPy-PAN NFs) mat, hydrazine modified polyacrylonitrile nanofibers (NH₂-PAN NFs) mat and carboxyl modified polyacrylonitrile (COOH-PAN NFs) mat. The results showed that the adsorption capacity of COOH-PAN NFs mat was better than other three NFs mats in both static (2.0 mg/g) and dynamic (0.19 mg/g) experiments. Meanwhile, the runoff ratios of COOH-PAN NFs mat were the lowest (less than 30.0%) in the adsorption of three analytes, especially for high polar analytes, which showed that the hydrogen bond between carboxyl groups and analytes was the main interactive force. A combination of mat-based SPE and high performance liquid chromatography-diode array detection was further established for determination of 3 analytes in environmental water samples. The recoveries were 81.4%-120.3% and the limits of detection were 0.12 ng/mL for DIA, 0.09 ng/mL for DEA and ATZ, respectively.
- Atrazine,
- Nanofibers mat,
- Functionalized modification,
- Solid-phase extraction,
- Adsorbent
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