Rapid analytical procedure for determination of mineral oils in edible oil by GC-FID
Copyright © 2013 Elsevier Ltd. All rights reserved..
A procedure for the determination of mineral oils in edible oil has been fully developed. The procedure consists of using a sulphuric acid-impregnated silica gel (SAISG) glass column to eliminate the fat matter. A chemical combustion of the fatty acids takes place, while the mineral oils are not affected by the sulphuric acid. The column is eluted with hexane using a vacuum pump and the final extract is concentrated and analysed by gas chromatography (GC) with flame ionisation detector (FID). The detection limit (LOD) and the quantification limit (LOQ) in hexane were 0.07 and 0.21 μg g(-1) respectively and the LOQ in vegetable oil was 1 μg g(-1). Only a few minutes were necessary for sample treatment to have a clean extract. The efficiency of the process, measured through the recoveries from spiked samples of edible oil was higher than 95%. The procedure has been applied to determine mineral oil in olive oil from the retailed market.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2013 |
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| Erschienen: |
2013 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:141 |
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| Enthalten in: |
Food chemistry - 141(2013), 4 vom: 15. Dez., Seite 3993-9 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wrona, Magdalena [VerfasserIn] |
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| Links: |
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| Themen: |
8020-83-5 |
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| Anmerkungen: |
Date Completed 28.03.2014 Date Revised 10.12.2019 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.foodchem.2013.06.091 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM230475310 |
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| 520 | |a Copyright © 2013 Elsevier Ltd. All rights reserved. | ||
| 520 | |a A procedure for the determination of mineral oils in edible oil has been fully developed. The procedure consists of using a sulphuric acid-impregnated silica gel (SAISG) glass column to eliminate the fat matter. A chemical combustion of the fatty acids takes place, while the mineral oils are not affected by the sulphuric acid. The column is eluted with hexane using a vacuum pump and the final extract is concentrated and analysed by gas chromatography (GC) with flame ionisation detector (FID). The detection limit (LOD) and the quantification limit (LOQ) in hexane were 0.07 and 0.21 μg g(-1) respectively and the LOQ in vegetable oil was 1 μg g(-1). Only a few minutes were necessary for sample treatment to have a clean extract. The efficiency of the process, measured through the recoveries from spiked samples of edible oil was higher than 95%. The procedure has been applied to determine mineral oil in olive oil from the retailed market | ||
| 650 | 4 | |a Evaluation Study | |
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Edible oil | |
| 650 | 4 | |a GC–FID | |
| 650 | 4 | |a Mineral oil | |
| 650 | 4 | |a Sulphuric acid-impregnated silica gel sample treatment | |
| 650 | 7 | |a Olive Oil |2 NLM | |
| 650 | 7 | |a Plant Oils |2 NLM | |
| 650 | 7 | |a Mineral Oil |2 NLM | |
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| 700 | 1 | |a Nerin, Cristina |e verfasserin |4 aut | |
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