Magnetic molecularly imprinted polymers for selective extraction and determination of naphthols

Magnetic molecularly imprinted polymers for selective extraction and determination of naphthols The authors describe a magnetic molecular imprinted polymer (MMIP) for the extraction and detection of naphthols synthesized by surface imprinting technology using 1-naphthol as the template. The MMIPs were characterized by FT-IR spectroscopy, X-ray diffraction, thermogravimetric analysis and vibrating sample magnetometry. They are shown to be viable magnetic adsorbents for various naphthols. The effects of sample volume, pH value, ionic strength, adsorption time, and desorption solvent, volume and time were optimized. Following elution with methanol, the naphthols were quantified by HPLC. Under optimal experimental conditions, the MSPE-HPLC method exhibits a linear range from 0.02–25 mg·kg−1 for naphthols. The limits of detection (LODs) are 6 μg·kg−1 for both naphthols. The method was applied to the determination of 1-naphthol and 2-naphthol in hair coloring products. Recoveries are in the range of 88.8–101.6% with relative standard deviations of less than 9.3%. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Microchimica Acta Springer Journals

Magnetic molecularly imprinted polymers for selective extraction and determination of naphthols

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Publisher
Springer Vienna
Copyright
Copyright © 2017 by Springer-Verlag Wien
Subject
Chemistry; Nanochemistry; Nanotechnology; Characterization and Evaluation of Materials; Analytical Chemistry; Microengineering
ISSN
0026-3672
eISSN
1436-5073
D.O.I.
10.1007/s00604-017-2346-5
Publisher site
See Article on Publisher Site

Abstract

The authors describe a magnetic molecular imprinted polymer (MMIP) for the extraction and detection of naphthols synthesized by surface imprinting technology using 1-naphthol as the template. The MMIPs were characterized by FT-IR spectroscopy, X-ray diffraction, thermogravimetric analysis and vibrating sample magnetometry. They are shown to be viable magnetic adsorbents for various naphthols. The effects of sample volume, pH value, ionic strength, adsorption time, and desorption solvent, volume and time were optimized. Following elution with methanol, the naphthols were quantified by HPLC. Under optimal experimental conditions, the MSPE-HPLC method exhibits a linear range from 0.02–25 mg·kg−1 for naphthols. The limits of detection (LODs) are 6 μg·kg−1 for both naphthols. The method was applied to the determination of 1-naphthol and 2-naphthol in hair coloring products. Recoveries are in the range of 88.8–101.6% with relative standard deviations of less than 9.3%.

Journal

Microchimica ActaSpringer Journals

Published: Jun 14, 2017

References

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