How can you identify oil from FTIR?
This page summarizes the recurring FTIR evidence reported for oil, including the most frequent peaks, supporting functional groups, and literature-backed interpretation patterns. It is a structured evidence page, not a claim of automatic single-spectrum certainty.
Backed by 10 cited sources
Snel antwoord
oil is usually reported with a recurring pattern of peaks and functional-group evidence. The most useful approach is to cross-check at least two characteristic peaks before treating it as a match, then verify whether the full spectrum still fits the same material family.
Piekinterpretatie
Mogelijke materialen / groepen
| Functionele groep | Bewijs |
|---|---|
| Alkyl C-H | 16 |
| Carboxyl (COOH) | 4 |
| Methoxy (OCH3) | 4 |
| Methacrylate | 4 |
| C-O single bond | 4 |
| Acetate | 4 |
| Carbonyl (C=O) | 3 |
| Amide | 2 |
Spectrumlogica
The logic here is evidence aggregation: repeated literature mentions of oil, repeated peak positions, and repeated functional-group associations. A strong material hypothesis should still be supported by multiple peaks that agree with each other, not by one headline band alone.
Gebruik in de praktijk
Deze pagina is ontworpen voor polymeeridentificatie, kwaliteitscontrole van inkomend materiaal, analyse van onbekende kunststoffen, beoordeling van gerecycled materiaal en literatuurondersteunde interpretatie van referentiespectra.
Veelgemaakte fouten
- Te vroeg een materiaalovereenkomst vaststellen omdat één bekende piek aanwezig is.
- Monstervoorbereiding, vulstoffen, oxidatie, water of additieven die het patroon kunnen veranderen negeren.
- Literatuurbewijs gebruiken zonder te controleren of uw eigen monsternamemethode en spectrumbenadering vergelijkbaar zijn.
Advies voor verificatie
Gebruik DSC, GC-MS of TGA om de materiaalhypothese te valideren wanneer het piekpatroon dubbelzinnig of gemengd is.
Literatuur achter deze pagina
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Dong 等 - 2020 - An indirect analytical approach based on ATR-FTIR DOI: 10.1039/d0ra03668d -
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Lojewski 等 - 2011 - Reflective and photoacoustic infrared spectroscopi DOI: 10.1007/s00339-011-6512-z -
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Wertz 等 - 2018 - Characterisation of oil and aluminium complex on r DOI: 10.1016/j.saa.2018.05.109) -
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Baird 和 Oja - 2022 - Multivariate models based on infrared spectra as a DOI: 10.3176/oil.2022.1.02 -
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Effect of heating on the oxidative stability of corn oil and soybean oil ; Efecto del calentamiento sobre la estabilidad oxidativa de aceites de maíz y de soja DOI: 10.3989/gya.0698181 -
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Faded shine…. The degradation of brass powder in two nineteenth century paintings DOI: 10.1186/s40494-015-0052-3 -
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Fourier transform midinfrared spectroscopy evaluation of early stages of virgin olive oil autoxidation DOI: 10.1002/ejlt.201200317 -
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Impact of microwave roasting on physicochemical properties, maillard reaction products, antioxidant activity and oxidative stability of nigella seed (Nigella sativa L.) oil DOI: 10.1016/j.foodchem.2021.130777 -
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Shalygin 等 - 2021 - Chemical Heterogeneity of Deposits Formed in the F DOI: 10.1134/S0965544121090127 -
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Fast and direct analysis of oxidation levels of oil-in-water emulsions using ATR-FTIR DOI: 10.1016/B0-08-043152-6/01622-3
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