Polyamidoamine dendrimer decorated nanoparticles as an adsorbent for magnetic solid-phase extraction of tetrabromobisphenol A and 4-nonylphenol from environmental water samples

Yalin Wu; Chunmao Chen; Qingxiang Zhou; Qing X Li; Yongyong Yuan; Yayan Tong; Hongyuan Wang; Xianqi Zhou; Yi Sun; Xueying Sheng

doi:10.1016/j.jcis.2018.12.064

Polyamidoamine dendrimer decorated nanoparticles as an adsorbent for magnetic solid-phase extraction of tetrabromobisphenol A and 4-nonylphenol from environmental water samples

J Colloid Interface Sci. 2019 Mar 15:539:361-369. doi: 10.1016/j.jcis.2018.12.064. Epub 2018 Dec 17.

Authors

Affiliations

¹ State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, College of Chemical Engineering and Environment, China University of Petroleum Beijing, Beijing 102249, China.
² State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, College of Chemical Engineering and Environment, China University of Petroleum Beijing, Beijing 102249, China. Electronic address: zhouqx@cup.edu.cn.
³ Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI 96822, USA.

PMID: 30594011
DOI: 10.1016/j.jcis.2018.12.064

Abstract

Polyamidoamine dendrimer decorated Fe₃O₄ magnetic nanoparticles were successfully synthesized by Michael addition with methyl acrylate and amidation with ethylenediamine. The decorated magnetic particles were utilized as an effective adsorbent for magnetic solid-phase extraction of tetrabromobisphenol A and 4-nonylphenol at trace levels from environmental water samples. A number of parameters such as generation number, ionic strength, adsorbent dosage, eluent, adsorption time, elution volume, elution time, pH, humic acid and sample volume were optimized. Under the optimal conditions, a wide linearity was achieved in the range of 0.1-500 μg L^-1 of the analytes with the correlation coefficients (R²) of 0.9985-0.9995. The limits of detection were approximately 0.011 μg L^-1 of tetrabromobisphenol A and 0.017 μg L^-1 of 4-nonylphenol. Satisfactory average recoveries of the analytes ranged from 93.2% to 101.1%. The results indicated that the decorated magnetic nanoparticles can be suitable for extraction of phenols from environmental water samples. The proposed method was sensitive, effective, practical and robust for the determination of tetrabromobisphenol A and 4-nonylphenol in environmental water samples.

Keywords: 4-nonylphenol; Decorated Fe(3)O(4) nanoparticle; Magnetic solid-phase extraction; Polyamidoamine dendrimer; Tetrabromobisphenol A; Water pollution.