Preparation of C18-functionalized Fe3O4@SiO2 core–shell magnetic nanoparticles for extraction and determination of phthalic acid esters in Chinese herb preparations

The extraction and determination of phthalic acid esters residue in Chinese herbal preparations by C18-functionalized magnetic nanoparticles was performed. •C18-functionalized magnetic nanoparticles were prepared by freeze-drying technique.•C18-FS-MNP was firstly used for extraction of phthalate est...

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Published in:Journal of pharmaceutical and biomedical analysis 2014-11, Vol.100, p.365-368
Main Authors: Guo, Bize, Ji, Shunli, Zhang, Feifang, Yang, Bingcheng, Gu, Jiangping, Liang, Xinmiao
Format: Article
Language:English
Subjects:
Chemical Fractionation - methods
Chromatography, High Pressure Liquid
Core–shell
Drug Contamination
Drugs, Chinese Herbal - analysis
Esters - isolation & purification
Extraction
Freeze Drying
Functionalized magnetic nanoparticles
High performance liquid chromatography
Limit of Detection
Magnetics
Magnetite Nanoparticles - chemistry
Phthalic acid esters
Phthalic Acids - isolation & purification
Phytotherapy
Plants, Medicinal
Silicates - chemistry
Surface Properties
Ultrasonics
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creator Guo, Bize
Ji, Shunli
Zhang, Feifang
Yang, Bingcheng
Gu, Jiangping
Liang, Xinmiao
description The extraction and determination of phthalic acid esters residue in Chinese herbal preparations by C18-functionalized magnetic nanoparticles was performed. •C18-functionalized magnetic nanoparticles were prepared by freeze-drying technique.•C18-FS-MNP was firstly used for extraction of phthalate esters residue in TCM.•C18-FS-MNP demonstrated much effective adsorption ability. The extraction and determination of phthalic acid esters (PAEs) residue in Chinese herbal preparations (CHP) by C18-functionalized magnetic nanoparticles (C18-FS-MNP) has been firstly performed. It was synthesized through coating Fe3O4 nanoparticles with sodium silicate, followed by freeze-drying technique and then modified with C18 groups. C18-FS-MNPs prepared via freeze-drying technique were superior to those particles prepared via common vacuum drying method in terms of dispersion and extraction recovery. C18-FS-MNPs demonstrated obvious enrichment effect for four model PAEs and 478–627-fold enrichment factors were obtained. The limit of detection was
doi_str_mv 10.1016/j.jpba.2014.08.027
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The extraction and determination of phthalic acid esters (PAEs) residue in Chinese herbal preparations (CHP) by C18-functionalized magnetic nanoparticles (C18-FS-MNP) has been firstly performed. It was synthesized through coating Fe3O4 nanoparticles with sodium silicate, followed by freeze-drying technique and then modified with C18 groups. C18-FS-MNPs prepared via freeze-drying technique were superior to those particles prepared via common vacuum drying method in terms of dispersion and extraction recovery. C18-FS-MNPs demonstrated obvious enrichment effect for four model PAEs and 478–627-fold enrichment factors were obtained. The limit of detection was &lt;1.89ng/mL and relative standard deviation was ranging from 3.7 to 5.8%. 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The extraction and determination of phthalic acid esters (PAEs) residue in Chinese herbal preparations (CHP) by C18-functionalized magnetic nanoparticles (C18-FS-MNP) has been firstly performed. It was synthesized through coating Fe3O4 nanoparticles with sodium silicate, followed by freeze-drying technique and then modified with C18 groups. C18-FS-MNPs prepared via freeze-drying technique were superior to those particles prepared via common vacuum drying method in terms of dispersion and extraction recovery. C18-FS-MNPs demonstrated obvious enrichment effect for four model PAEs and 478–627-fold enrichment factors were obtained. The limit of detection was &lt;1.89ng/mL and relative standard deviation was ranging from 3.7 to 5.8%. 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The extraction and determination of phthalic acid esters (PAEs) residue in Chinese herbal preparations (CHP) by C18-functionalized magnetic nanoparticles (C18-FS-MNP) has been firstly performed. It was synthesized through coating Fe3O4 nanoparticles with sodium silicate, followed by freeze-drying technique and then modified with C18 groups. C18-FS-MNPs prepared via freeze-drying technique were superior to those particles prepared via common vacuum drying method in terms of dispersion and extraction recovery. C18-FS-MNPs demonstrated obvious enrichment effect for four model PAEs and 478–627-fold enrichment factors were obtained. The limit of detection was &lt;1.89ng/mL and relative standard deviation was ranging from 3.7 to 5.8%. It was successfully applied for determination of trace PAEs residue in CHP with good recoveries.</abstract><cop>England</cop><pub>Elsevier B.V</pub><pmid>25213260</pmid><doi>10.1016/j.jpba.2014.08.027</doi><tpages>4</tpages></addata></record>
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subjects Chemical Fractionation - methods
Chromatography, High Pressure Liquid
Core–shell
Drug Contamination
Drugs, Chinese Herbal - analysis
Esters - isolation & purification
Extraction
Freeze Drying
Functionalized magnetic nanoparticles
High performance liquid chromatography
Limit of Detection
Magnetics
Magnetite Nanoparticles - chemistry
Phthalic acid esters
Phthalic Acids - isolation & purification
Phytotherapy
Plants, Medicinal
Silicates - chemistry
Surface Properties
Ultrasonics
title Preparation of C18-functionalized Fe3O4@SiO2 core–shell magnetic nanoparticles for extraction and determination of phthalic acid esters in Chinese herb preparations
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