How can you identify proteins from FTIR?
This page summarizes the recurring FTIR evidence reported for proteins, 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 19 cited sources
Snel antwoord
proteins 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 |
|---|---|
| Amide | 29 |
| Methacrylate | 11 |
| Acetate | 11 |
| Alkyl C-H | 11 |
| Hydroxyl (O-H) | 9 |
| Methoxy (OCH3) | 8 |
| C-O single bond | 8 |
| Carbonyl (C=O) | 6 |
Spectrumlogica
The logic here is evidence aggregation: repeated literature mentions of proteins, 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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vertrouwen 0,9
proteins
AComDim, a multivariate tool to highlighting impact of agroclimatic factors on Moringa oleifera Lam. leaf’s composition from their FTIR-ATR profiles DOI: 10.1111/j.1745-4557.2008.00218. -
vertrouwen 0,9
proteins
Application of Fourier transform infrared spectroscopy with chemometrics on postmortem interval estimation based on pericardial fluids DOI: 10.1038/s41598-017-18228-7 -
vertrouwen 0,8
proteins
Ganim 等 - 2008 - Amide I two-dimensional infrared Spectroscopy of p DOI: 10.1021/ar700188nCCC -
vertrouwen 0,8
proteins
Application of SPRA Technology for Delivery of Erythropoietin: Stability Evaluation of Conjugated Erythropoietin with Adamantane and in SPRA Inclusion Complex DOI: 10.5812/ijpr-134282. -
vertrouwen 0,8
proteins
Balakhnina 等 - 2017 - Low-frequency vibrational spectroscopy of proteins DOI: 10.1117/1.JBO.22.9.091509. -
vertrouwen 0,8
proteins
Fiocco 等 - 2021 - Reflection FTIR spectroscopy for the study of hist DOI: 10.1016/j.culher.2019.11.004. -
vertrouwen 0,8
proteins
Koliastasi 等 - 2019 - Emulsifiers from Partially Composted Olive Waste DOI: 10.3390/foods8070271 -
vertrouwen 0,7
proteins
Investigation on thermallyinduced conformation transition of soy protein film with variabletemperature FTIR spectroscopy DOI: 10.1002/app.35309 -
vertrouwen 0,7
proteins
FTIR spectral signature of the effect of cardiotonic steroids with antitumoral properties on a prostate cancer cell line DOI: 10.1016/j.bbadis.2010.07.012 -
vertrouwen 0,7
proteins
Physico-chemical and colloidal properties of protein extracted from black soldier fly ( Hermetia illucens ) larvae DOI: 10.1016/j.ijbiomac.2021.07.081
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