Adsorbent-SERS Technique for Determination of Plant VOCs from Live Cotton Plants and Dried Teas.
Journal
ACS omega
ISSN: 2470-1343
Titre abrégé: ACS Omega
Pays: United States
ID NLM: 101691658
Informations de publication
Date de publication:
18 Feb 2020
18 Feb 2020
Historique:
received:
19
10
2019
accepted:
29
01
2020
entrez:
26
2
2020
pubmed:
26
2
2020
medline:
26
2
2020
Statut:
epublish
Résumé
We developed a novel substrate for the collection of volatile organic compounds (VOCs) emitted from either living or dried plant material to be analyzed by surface-enhanced Raman spectroscopy (SERS). We demonstrated that this substrate can be utilized to differentiate emissions from blends of three teas, and to differentiate emissions from healthy cotton plants versus caterpillar-infested cotton plants. The substrate we developed can adsorb VOCs in static headspace sampling environments, and VOCs naturally evaporated from three standards were successfully identified by our SERS substrate, showing its ability to differentiate three VOCs and to detect quantitative differences according to collection times. In addition, volatile profiles from plant materials that were either qualitatively different among three teas or quantitatively different in abundance between healthy and infested cotton plants were confirmed by collections on Super-Q resin for dynamic headspace and solid-phase microextraction for static headspace sampling, respectively, followed by gas chromatography to mass spectrometry. Our results indicate that both qualitative and quantitative differences can also be detected by our SERS substrate although we find that the detection of quantitative differences could be improved.
Identifiants
pubmed: 32095701
doi: 10.1021/acsomega.9b03500
pmc: PMC7033990
doi:
Types de publication
Journal Article
Langues
eng
Pagination
2779-2790Informations de copyright
Copyright © 2020 American Chemical Society.
Déclaration de conflit d'intérêts
The authors declare no competing financial interest.
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