Differential NMR and chromatography for the detection and analysis of adulteration of vetiver essential oils
Copyright © 2021 Elsevier B.V. All rights reserved..
Adulteration of essential oils is a common and serious problem. Adequate and fast methods are required to establish the authenticity and purity. GC-MS, 1H and 13C NMR were compared in combination with similarity calculations as well as differential spectroscopy and chromatography for the authentication and determination of purity of vetiver essential oils. In the investigation of eight commercial oils 1H and 13C NMR adequately detected all six adulterants encountered in four of the commercial samples, while GC-MS was not able to detect adulteration with vegetable oils. A great advantage of the combined use of similarity calculation and NMR is that the authenticity can be verified without the need of concomitant measurement of a standard sample. The calculation can be carried out with a registered reference spectrum, in the case of 1H NMR acquired using the same magnetic field, but in the case of 13C NMR the spectrum can be obtained with another magnetic field. 1H NMR has the advantage of high speed, and the results can be obtained within minutes. 13C NMR was found to be superior in its ability to provide unequivocal identification of eventual adulterants, with differential spectroscopy revealing all signals of the adulterants.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2022 |
|---|---|
| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:237 |
|---|---|
| Enthalten in: |
Talanta - 237(2022) vom: 15. Jan., Seite 122928 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Schripsema, Jan [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
Differential chromatography |
|---|
| Anmerkungen: |
Date Completed 08.11.2021 Date Revised 08.11.2021 published: Print-Electronic Citation Status MEDLINE |
|---|
| doi: |
10.1016/j.talanta.2021.122928 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM332747603 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM332747603 | ||
| 003 | DE-627 | ||
| 005 | 20231225220219.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231225s2022 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1016/j.talanta.2021.122928 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1109.xml |
| 035 | |a (DE-627)NLM332747603 | ||
| 035 | |a (NLM)34736665 | ||
| 035 | |a (PII)S0039-9140(21)00850-X | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Schripsema, Jan |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Differential NMR and chromatography for the detection and analysis of adulteration of vetiver essential oils |
| 264 | 1 | |c 2022 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 08.11.2021 | ||
| 500 | |a Date Revised 08.11.2021 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2021 Elsevier B.V. All rights reserved. | ||
| 520 | |a Adulteration of essential oils is a common and serious problem. Adequate and fast methods are required to establish the authenticity and purity. GC-MS, 1H and 13C NMR were compared in combination with similarity calculations as well as differential spectroscopy and chromatography for the authentication and determination of purity of vetiver essential oils. In the investigation of eight commercial oils 1H and 13C NMR adequately detected all six adulterants encountered in four of the commercial samples, while GC-MS was not able to detect adulteration with vegetable oils. A great advantage of the combined use of similarity calculation and NMR is that the authenticity can be verified without the need of concomitant measurement of a standard sample. The calculation can be carried out with a registered reference spectrum, in the case of 1H NMR acquired using the same magnetic field, but in the case of 13C NMR the spectrum can be obtained with another magnetic field. 1H NMR has the advantage of high speed, and the results can be obtained within minutes. 13C NMR was found to be superior in its ability to provide unequivocal identification of eventual adulterants, with differential spectroscopy revealing all signals of the adulterants | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Differential chromatography | |
| 650 | 4 | |a Differential spectroscopy | |
| 650 | 4 | |a Essential oil | |
| 650 | 4 | |a Similarity | |
| 650 | 4 | |a Vetiver | |
| 650 | 7 | |a Oils, Volatile |2 NLM | |
| 650 | 7 | |a Plant Oils |2 NLM | |
| 700 | 1 | |a da Silva, Sônia Maria |e verfasserin |4 aut | |
| 700 | 1 | |a Dagnino, Denise |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Talanta |d 1966 |g 237(2022) vom: 15. Jan., Seite 122928 |w (DE-627)NLM114409137 |x 1873-3573 |7 nnns |
| 773 | 1 | 8 | |g volume:237 |g year:2022 |g day:15 |g month:01 |g pages:122928 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1016/j.talanta.2021.122928 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 237 |j 2022 |b 15 |c 01 |h 122928 | ||