How can you identify edible oils from FTIR?
This page summarizes the recurring FTIR evidence reported for edible oils, 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 12 cited sources
Quick answer
edible oils 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.
Peak interpretation
Possible materials / groups
| Groupe fonctionnel | Preuves |
|---|---|
| Alkyl C-H | 15 |
| Alkene (C=C) | 10 |
| Carbonyl (C=O) | 6 |
| Ester | 6 |
| Methacrylate | 5 |
| Carboxyl (COOH) | 5 |
| Acetate | 5 |
| Fatty acid | 3 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of edible oils, 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.
Real-world usage
This page is designed for polymer identification, incoming-material QC, unknown plastic analysis, recycled-content review, and literature-backed interpretation of reference spectra.
Common mistakes
- Calling a material match too early because one famous peak is present.
- Ignoring sample prep, fillers, oxidation, water, or additives that can change the apparent pattern.
- Using literature evidence without checking whether your own sampling mode and spectrum quality are comparable.
Verification advice
Use DSC, GC-MS, or TGA to validate the material hypothesis when the peak pattern is ambiguous or mixed.
Literature behind this page
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confiance 0,9
edible oils
Mahboubifar 等 - 2017 - Classification of Edible Oils Based on ATR-FTIR Sp DOI: 10.5740/jaoacint.16-0412 -
confiance 0,9
edible oils
Plazzotta 等 - 2021 - Conversion of Whey Protein Aerogel Particles into DOI: 10.3390/polym13234063 -
confiance 0,8
edible oils
Hu 等 - 2019 - Rapid Determination of Acid Value of Edible Oils v DOI: 10.5650/jos.ess18156 -
confiance 0,8
edible oils
Determination of the acid values of edible oils via FTIR spectroscopy based on the OH stretching band DOI: 10.1016/j.foodchem.2016.06.035 -
confiance 0,8
edible oils
An automated approach for analysis of Fourier Transform Infrared (FTIR) spectra of edible oils DOI: 10.1016/j.talanta.2011.11.030 -
confiance 0,7
edible oils
Parker 等 - 2014 - 60 MHz H-1 NMR spectroscopy for the analysis of ed DOI: 10.1016/j.trac.2014.02.006 -
confiance 0,7
edible oils
Stoichiometric Determination of Moisture in Edible Oils by Mid-FTIR Spectroscopy DOI: 10.1016/j.aca.2016.03.016 -
confiance 0,7
edible oils
Evaluation of long-heating kinetic process of edible oils using ATR–FTIR and chemometrics tools DOI: 10.1007/s13197-017-2502-2) -
confiance 0,7
edible oils
Hyperspectral Imaging and Chemometrics for Authentication of Extra Virgin Olive Oil: A Comparative Approach with FTIR, UV-VIS, Raman, and GC-MS DOI: 10.3390/foods12030429 -
confiance 0,6
edible oils
Kou 等 - 2018 - Efficient Detection of Edible Oils Adulterated wit DOI: 10.5650/jos.ess18029
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