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Direct analysis of volatile components from intact jujube by carbon fiber ionization mass spectrometry

In situ analysis of odor is an important approach to connect odor with chemical composition. However, it is difficult to conduct a rapid direct analysis of the odor sample because of low analyte concentration and sampling. To achieve the direct analysis, a carbon fiber ionization mass spectrometry (...

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Autores principales: Sun, Shihao, Zhang, Yihan, Li, Peng, Xi, Hui, Wu, Lei, Zhang, Jianxun, Peng, Guixin, Su, Yue
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer International Publishing 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6823938/
https://www.ncbi.nlm.nih.gov/pubmed/31696162
http://dx.doi.org/10.1186/s13065-019-0641-4
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author Sun, Shihao
Zhang, Yihan
Li, Peng
Xi, Hui
Wu, Lei
Zhang, Jianxun
Peng, Guixin
Su, Yue
author_facet Sun, Shihao
Zhang, Yihan
Li, Peng
Xi, Hui
Wu, Lei
Zhang, Jianxun
Peng, Guixin
Su, Yue
author_sort Sun, Shihao
collection PubMed
description In situ analysis of odor is an important approach to connect odor with chemical composition. However, it is difficult to conduct a rapid direct analysis of the odor sample because of low analyte concentration and sampling. To achieve the direct analysis, a carbon fiber ionization mass spectrometry (CFI-MS) method has been developed and applied to measure volatile components releasing from intact jujube. To build the CFI source, a 2.0-cm long carbon fiber bundle was integrated on the pin of a commercial corona discharge needle by mean of a 1.3-cm long stainless hollow tube. Odor sample driven by N(2) gas can be directly introduced to the carbon fiber bundle to complete the ionization of analytes. Acetic acid, ethyl acetate, ethyl caproate, octyl acetate, and damascone present in jujube were selected to evaluate the performance of the CFI-MS method on quantitative analysis of the gaseous sample. Good lineary was obtained (R(2) ≥ 0.9946) between 5.0 and 500.0 ng/L with limits of detection (LOD) ranging from 0.5 to 1.5 ng/L. Recoveries of five volatile compounds for the spiked jujube samples were between 94.36 and 106.74% with relative standard deviations (RSDs) less than 7.27% (n = 5). Jujube of different varieties can be distinguished by principal components analysis based on the analytical results of volatile compounds. The developed method demonstrated obvious advantages such as simplicity, high throughput, good sensitivity and wide range of applicability, which will be an alternative way for in situ analysis of the odor sample. [Image: see text]
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spelling pubmed-68239382019-11-06 Direct analysis of volatile components from intact jujube by carbon fiber ionization mass spectrometry Sun, Shihao Zhang, Yihan Li, Peng Xi, Hui Wu, Lei Zhang, Jianxun Peng, Guixin Su, Yue BMC Chem Research Article In situ analysis of odor is an important approach to connect odor with chemical composition. However, it is difficult to conduct a rapid direct analysis of the odor sample because of low analyte concentration and sampling. To achieve the direct analysis, a carbon fiber ionization mass spectrometry (CFI-MS) method has been developed and applied to measure volatile components releasing from intact jujube. To build the CFI source, a 2.0-cm long carbon fiber bundle was integrated on the pin of a commercial corona discharge needle by mean of a 1.3-cm long stainless hollow tube. Odor sample driven by N(2) gas can be directly introduced to the carbon fiber bundle to complete the ionization of analytes. Acetic acid, ethyl acetate, ethyl caproate, octyl acetate, and damascone present in jujube were selected to evaluate the performance of the CFI-MS method on quantitative analysis of the gaseous sample. Good lineary was obtained (R(2) ≥ 0.9946) between 5.0 and 500.0 ng/L with limits of detection (LOD) ranging from 0.5 to 1.5 ng/L. Recoveries of five volatile compounds for the spiked jujube samples were between 94.36 and 106.74% with relative standard deviations (RSDs) less than 7.27% (n = 5). Jujube of different varieties can be distinguished by principal components analysis based on the analytical results of volatile compounds. The developed method demonstrated obvious advantages such as simplicity, high throughput, good sensitivity and wide range of applicability, which will be an alternative way for in situ analysis of the odor sample. [Image: see text] Springer International Publishing 2019-10-31 /pmc/articles/PMC6823938/ /pubmed/31696162 http://dx.doi.org/10.1186/s13065-019-0641-4 Text en © The Author(s) 2019 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research Article
Sun, Shihao
Zhang, Yihan
Li, Peng
Xi, Hui
Wu, Lei
Zhang, Jianxun
Peng, Guixin
Su, Yue
Direct analysis of volatile components from intact jujube by carbon fiber ionization mass spectrometry
title Direct analysis of volatile components from intact jujube by carbon fiber ionization mass spectrometry
title_full Direct analysis of volatile components from intact jujube by carbon fiber ionization mass spectrometry
title_fullStr Direct analysis of volatile components from intact jujube by carbon fiber ionization mass spectrometry
title_full_unstemmed Direct analysis of volatile components from intact jujube by carbon fiber ionization mass spectrometry
title_short Direct analysis of volatile components from intact jujube by carbon fiber ionization mass spectrometry
title_sort direct analysis of volatile components from intact jujube by carbon fiber ionization mass spectrometry
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6823938/
https://www.ncbi.nlm.nih.gov/pubmed/31696162
http://dx.doi.org/10.1186/s13065-019-0641-4
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