Preparation of magnetic molecularly imprinted polymer based on multiwalled carbon nanotubes for selective dispersive micro-solid phase extraction of fenitrothion followed by ion mobility spectrometry analysis.
dispersive micro-solid phase extraction
fenitrothion
ion mobility spectrometry
magnetic molecularly imprinted polymer
magnetic multi-walled carbon nanotubes
Journal
Journal of separation science
ISSN: 1615-9314
Titre abrégé: J Sep Sci
Pays: Germany
ID NLM: 101088554
Informations de publication
Date de publication:
May 2022
May 2022
Historique:
revised:
14
02
2022
received:
22
11
2021
accepted:
16
02
2022
pubmed:
23
2
2022
medline:
12
5
2022
entrez:
22
2
2022
Statut:
ppublish
Résumé
A novel molecularly imprinted polymer based on magnetic multiwalled carbon nanotubes was fabricated and applied for selective dispersive micro-solid phase extraction of fenitrothion prior its determination by ion mobility spectrometry. The composite was synthesized using magnetic multiwalled carbon nanotubes as the support. Methacrylic acid was used as the functional monomer, fenitrothion as the template, ethylene glycol dimethacrylate as the cross-linker, and 2,2-azoisobutyronitrile as the initiator. The resultant polymer was characterized by FTIR spectroscopy, X-ray diffraction, field emission scanning electron microscopy, Brunauer-Emmet-Teller analysis, thermogravimetric analysis, and vibrating sample magnetometer techniques. Experimental factors affecting the extraction efficiency such as pH and amount of sorbent were evaluated. Under optimum experimental conditions, the developed method displayed the linear range of 5-220 μg/L with a detection limit of 1.3 μg/L. The intra- and interday relative standard deviations for determination of fenitrothion were 3.6 and 4.7% (n = 6), respectively. Ultimately, the proposed method was used to monitor trace amounts of fenitrothion in fruits, vegetables, and water samples.
Identifiants
pubmed: 35191593
doi: 10.1002/jssc.202100925
doi:
Substances chimiques
Molecularly Imprinted Polymers
0
Nanotubes, Carbon
0
Fenitrothion
W8M4X3Y7ZY
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1590-1599Informations de copyright
© 2022 Wiley-VCH GmbH.
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