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Determination of earthy-musty odors in tap water by gas chromatography‒mass spectrometry with silica solid-phase extraction
This research aimed to develop an effective method for detecting semivolatile earthy-musty odors without using the conventional sample processing equipment used for volatile compounds. The concurrent isolation of 2-methylisoborneol (2-MIB), trans-1,10-dimethyl-trans-9-decalol (geosmin, GSM), 2-isopr...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10643238/ https://www.ncbi.nlm.nih.gov/pubmed/38027601 http://dx.doi.org/10.1016/j.heliyon.2023.e21580 |
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author | Tian, Liangliang Qu, Xin Huang, Dongmei Shi, Yongfu Kong, Cong Wang, Yuan |
author_facet | Tian, Liangliang Qu, Xin Huang, Dongmei Shi, Yongfu Kong, Cong Wang, Yuan |
author_sort | Tian, Liangliang |
collection | PubMed |
description | This research aimed to develop an effective method for detecting semivolatile earthy-musty odors without using the conventional sample processing equipment used for volatile compounds. The concurrent isolation of 2-methylisoborneol (2-MIB), trans-1,10-dimethyl-trans-9-decalol (geosmin, GSM), 2-isopropyl-3-methoxy pyrazine (IPMP), and 2-isobutyl-3-methoxy pyrazine (IBMP) in tap water was successfully achieved by employing a combination of n-hexane liquid‒liquid extraction (LLE) and silica solid-phase extraction (SPE) techniques. Gas chromatography–mass spectrometry (GC-MS) was utilized for the identification of these targets, with the inclusion of borneol (BN) as an internal reference. This robust method was optimized and validated. It was found that the method showed good linearity in the range of 0.5–100 ng/mL and produced good recoveries (84.6 %–103 %) with satisfactory relative standard deviations (1.50 %–10.1 %). The determined limits of detection (LODs) for the group of four substances were found to vary from 0.3 to 0.9 ng/L, whereas the limits of quantitation (LOQs) exhibited variations between 1 and 3 ng/L. The subsequent implementation of this methodology to evaluate the four previously described off-flavor chemicals in tap water resulted in satisfactory results. |
format | Online Article Text |
id | pubmed-10643238 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-106432382023-10-26 Determination of earthy-musty odors in tap water by gas chromatography‒mass spectrometry with silica solid-phase extraction Tian, Liangliang Qu, Xin Huang, Dongmei Shi, Yongfu Kong, Cong Wang, Yuan Heliyon Research Article This research aimed to develop an effective method for detecting semivolatile earthy-musty odors without using the conventional sample processing equipment used for volatile compounds. The concurrent isolation of 2-methylisoborneol (2-MIB), trans-1,10-dimethyl-trans-9-decalol (geosmin, GSM), 2-isopropyl-3-methoxy pyrazine (IPMP), and 2-isobutyl-3-methoxy pyrazine (IBMP) in tap water was successfully achieved by employing a combination of n-hexane liquid‒liquid extraction (LLE) and silica solid-phase extraction (SPE) techniques. Gas chromatography–mass spectrometry (GC-MS) was utilized for the identification of these targets, with the inclusion of borneol (BN) as an internal reference. This robust method was optimized and validated. It was found that the method showed good linearity in the range of 0.5–100 ng/mL and produced good recoveries (84.6 %–103 %) with satisfactory relative standard deviations (1.50 %–10.1 %). The determined limits of detection (LODs) for the group of four substances were found to vary from 0.3 to 0.9 ng/L, whereas the limits of quantitation (LOQs) exhibited variations between 1 and 3 ng/L. The subsequent implementation of this methodology to evaluate the four previously described off-flavor chemicals in tap water resulted in satisfactory results. Elsevier 2023-10-26 /pmc/articles/PMC10643238/ /pubmed/38027601 http://dx.doi.org/10.1016/j.heliyon.2023.e21580 Text en © 2023 The Authors. Published by Elsevier Ltd. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Research Article Tian, Liangliang Qu, Xin Huang, Dongmei Shi, Yongfu Kong, Cong Wang, Yuan Determination of earthy-musty odors in tap water by gas chromatography‒mass spectrometry with silica solid-phase extraction |
title | Determination of earthy-musty odors in tap water by gas chromatography‒mass spectrometry with silica solid-phase extraction |
title_full | Determination of earthy-musty odors in tap water by gas chromatography‒mass spectrometry with silica solid-phase extraction |
title_fullStr | Determination of earthy-musty odors in tap water by gas chromatography‒mass spectrometry with silica solid-phase extraction |
title_full_unstemmed | Determination of earthy-musty odors in tap water by gas chromatography‒mass spectrometry with silica solid-phase extraction |
title_short | Determination of earthy-musty odors in tap water by gas chromatography‒mass spectrometry with silica solid-phase extraction |
title_sort | determination of earthy-musty odors in tap water by gas chromatography‒mass spectrometry with silica solid-phase extraction |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10643238/ https://www.ncbi.nlm.nih.gov/pubmed/38027601 http://dx.doi.org/10.1016/j.heliyon.2023.e21580 |
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