How can you identify goethite from FTIR?
This page summarizes the recurring FTIR evidence reported for goethite, 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 16 cited sources
Snel antwoord
goethite 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 |
|---|---|
| Hydroxyl (O-H) | 19 |
| Metal oxygen | 8 |
| Aromatic ring | 6 |
| Carboxyl (COOH) | 6 |
| C-O single bond | 6 |
| Amide | 4 |
| N h | 4 |
| Silicon-oxygen (Si-O) | 4 |
Spectrumlogica
The logic here is evidence aggregation: repeated literature mentions of goethite, 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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Reactions of nitrite with goethite and surface Fe(II)-goethite complexes DOI: 10.1016/j.scitotenv.2021.146406 -
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Hidden colours in stuccowork damaged by fire: A multi-analytical investigation for revealing the original decorative pattern DOI: 10.1016/j.culher.2015.11.002 -
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Effects of Flavin-Goethite Interaction on Goethite Reduction by Shewanella decolorationis S12 DOI: 10.3389/fmicb.2019.01623 -
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Surface Complexation Modeling and FTIR Study of Carbonate Adsorption to Goethite DOI: 10.1006/jcis.2000.7341 -
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Oxolinic Acid Binding at Goethite and Akaganeite Surfaces: Experimental Study and Modeling DOI: 10.1021/acs.est.5b04940 -
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Morsch 等 - 2023 - The effect of cross-linker structure on interfacia DOI: 10.1016/j.apsusc.2022.155380 -
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Effects of Interfaces of Goethite and Humic Acid-Goethite Complex on Microbial Degradation of Methyl Parathion DOI: 10.3389/fmicb.2018.01748 -
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Efficiency of Fe3O4 Nanoparticles with Different Pretreatments for Enhancing Biogas Yield of Macroalgae Ulva intestinalis Linnaeus DOI: 10.3390/molecules26165105 -
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Yang 等 - 2013 - Molecular-Scale Study of Salicylate Adsorption and DOI: 10.1021/jp4027578 -
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Prasad 等 - 2006 - In situ FTIR study on the dehydration of natural g DOI: 10.1016/j.jseaes.2005.05.005
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