Offline Solid-Phase Extraction and Separation of Mineral Oil Saturated Hydrocarbons and Mineral Oil Aromatic Hydrocarbons in Edible Oils, and Analysis via GC with a Flame Ionization Detector
| Autor: | Roberto Romero González, José Luis Hidalgo Ruiz, Javier Arrebola Liébanas, José Luis Martínez Vidal, Antonia Garrido Frenich |
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| Rok vydání: | 2021 |
| Předmět: |
Health (social science)
Relative standard deviation TP1-1185 Plant Science mineral oil aromatic hydrocarbons Health Professions (miscellaneous) Microbiology Article law.invention edible oils chemistry.chemical_compound law medicine Flame ionization detector solid-phase extraction Solid phase extraction Mineral oil Chromatography Silica gel Chemical technology Extraction (chemistry) Ionization detector chemistry mineral oil saturated hydrocarbons Stationary phase gas chromatography–flame ionization detector Food Science medicine.drug |
| Zdroj: | Foods Volume 10 Issue 9 riUAL. Repositorio Institucional de la Universidad de Almería Universidad de Almería Foods, Vol 10, Iss 2026, p 2026 (2021) |
| ISSN: | 2304-8158 |
| DOI: | 10.3390/foods10092026 |
| Popis: | A method was developed for the determination of mineral oil saturated hydrocarbons (MOSH) and mineral oil aromatic hydrocarbons (MOAH) in edible oils, achieving similar limits of quantification than those obtained by online extraction methodologies, i.e., 0.5 mg/kg. The isolation of MOSH and MOAH was performed in a silver nitrated silica gel stationary phase prior to their analysis by gas chromatography–flame ionization detector (GC-FID). To improve the sensitivity, the simulated on-column injection method, using a suitable liner, was optimized. The method was validated at 0.5, 10.0 and 17.9 mg/kg, and recoveries ranged from 80 to 110%. Intra and inter-day precision were evaluated at the same levels, and relative standard deviation (RSD) was lower than 20%. The method was applied to a total of 27 samples of different types of oil previously analyzed in an accredited laboratory, detecting MOSH up to 79.2 mg/kg and MOAH up to 22.4 mg/kg. |
| Databáze: | OpenAIRE |
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