Ethanol-extraction SERS strategy for highly sensitive detection of poisons in oily matrix

Copyright © 2021 Elsevier B.V. All rights reserved..

The sensitive detection and identification of toxicants in oily matrices have suffered from difficulty in poisoning incidents, therefore it is necessary to develop the rapid and efficient analytical method to realize the on-site screening and analyzing. In this report, the surface-enhanced Raman spectroscopy (SERS) method was used to detect paraquat and diquat poisons in various oily matrix coupled with solvent extraction. The solvent extraction not only remove interfering impurities of oily substrates, but also can enrich and separate the poisons from oily matrix. It was demonstrated that the ethanol as the extractant was suitable for the rapid separation of poisons such as paraquat (PQ) and diquat (DQ) in oily matrix (soy sauce, pasta sauce, sesame oil, chili oil). Moreover, combined with a handheld Raman spectrometer, the entire detection process was completed within 8 min with the level of 10 ppb PQ and 100 ppb DQ. Furthermore, double-blind experiments verify the reliability of this method. The results demonstrate that this rapid and convenient method could be used for the effective enrichment and sensitive detection of poisons in several oily matrix and has the grate potential application in emergency response and public safety.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:259

Enthalten in:

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy - 259(2021) vom: 05. Okt., Seite 119883

Sprache:

Englisch

Beteiligte Personen:

Wang, Yongtao [VerfasserIn]
Li, Pan [VerfasserIn]
Lin, Dongyue [VerfasserIn]
Chen, Jianyi [VerfasserIn]
Zhang, Yunfeng [VerfasserIn]
Yang, Liangbao [VerfasserIn]

Links:

Volltext

Themen:

3K9958V90M
A9A615U4MP
Au NRs
Diquat
Ethanol
Journal Article
PLG39H7695
Paraquat
Poisons
Sensitive detection
Solvent extraction
Surface-enhanced Raman spectroscopy

Anmerkungen:

Date Completed 03.06.2021

Date Revised 31.05.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.saa.2021.119883

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM325230544