Construction of hydrophilic hypercrosslinked polymer based on natural kaempferol for highly effective extraction of 5-nitroimidazoles in environmental water, honey and fish samples.

A series of novel hydroxyl-functional hypercrosslinked polymers (named as HCPs-Kae) were fabricated using natural and environmentally benign kaempferol as monomer via one-step Friedel-Crafts reaction. The prepared HCP-Kae1-24 h exhibited large surface area, good hydrophilicity and excellent adsorption performance to 5-nitroimidazoles (5-NDZs). Thus, by applying HCP-Kae1-24 h as a solid-phase extraction adsorbent, a sensitive method was developed for enrichment of 5-NDZs including metronidazole, ronidazole, secnidazole, dimetridazole and ornidazole prior to high performance liquid chromatography analysis. Under the optimum conditions, good linearities were achieved in the range of 0.10-100.0 ng mL-1 for water, 1.3-500.0 ng g-1 for honey, and 1.7-100.0 ng g-1 for fish meat. The detection limits of the method were 0.03-0.05 ng mL-1, 0.4-1.0 ng g-1, 0.5-1.0 ng g-1 for water, honey and fish meat, respectively. High method recovery was obtained in the range of 84-118% with relative standard deviations lower than 8.9%. The established method was successfully applied to the detection of 5-NDZs in environmental water, honey and fish samples. This work provides a new strategy for constructing hydroxyl-functional HCPs by using natural resource as robust adsorbent for adsorption/extraction applications. Copyright © 2022 Elsevier B.V. All rights reserved.

Citation

Mingming Xu, Junmin Wang, Lihong Zhang, Qianqian Wang, Weihua Liu, Yangjuan An, Lin Hao, Chun Wang, Zhi Wang, Qiuhua Wu. Construction of hydrophilic hypercrosslinked polymer based on natural kaempferol for highly effective extraction of 5-nitroimidazoles in environmental water, honey and fish samples. Journal of hazardous materials. 2022 May 05;429:128288

Mesh Tags

Substances

PMID: 35066223

search → result