How can you identify apatite from FTIR?
This page summarizes the recurring FTIR evidence reported for apatite, 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 15 cited sources
Quick answer
apatite 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
| Functional group | Evidence |
|---|---|
| Phosphate (PO4) | 24 |
| Phosphorus | 13 |
| Carbonate | 11 |
| Amide | 4 |
| Hydroxyl (O-H) | 4 |
| Carboxyl (COOH) | 4 |
| Water (H2O) | 3 |
| Protein | 2 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of apatite, 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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confidence 0.9
apatite
Hammerli 等 - 2021 - Measuring in situ CO2 and H2O in apatite via ATR-F DOI: 10.1007/s00410-021-01858-6 -
confidence 0.9
apatite
High phosphate content in bioactive glasses promotes osteogenesis in vitro and in vivo DOI: 10.1016/j.dental.2020.11.017 -
confidence 0.9
apatite
Composition and content analysis of fluoride in inorganic salts of the integument of Antarctic krill (Euphausia superba) DOI: 10.1038/s41598-019-44337-6 -
confidence 0.9
apatite
FTIR BONE CHARACTERIZATION AND RADIOCARBON DATING: TIMING THE ABANDONMENT OF BYZANTINE PIGEON TOWERS IN THE NEGEV DESERT, ISRAEL DOI: 10.1017/RDC.2021.85 -
confidence 0.8
apatite
Querido 等 - 2020 - Fourier transform infrared spectroscopy of develop DOI: 10.1039/c9an01588d. -
confidence 0.8
apatite
Nephrotoxicity induced by drugs: The case of foscarnet and atazanavir—A SEM and μFTIR investigation DOI: 10.1016/j.crci.2016.08.007 -
confidence 0.8
apatite
Effect of thermal treatment on the structural, morphological, and chemical properties of apatite bioceramicsmaterials DOI: 10.15251/DJNB.2023.182.531 -
confidence 0.8
apatite
Revisiting carbonate quantification in apatite (bio)minerals: a validated FTIR methodology DOI: 10.1016/j.jas.2014.05.004 -
confidence 0.7
apatite
Modeling the attenuated total reflectance infrared (ATR-FTIR) spectrum of apatite DOI: 10.1007/s00269-016-0821-x -
confidence 0.7
apatite
Novel contribution on the diagenetic physicochemical features of bone and teeth minerals, as substrates for ancient DNA typing DOI: 10.1007/s00216-014-7863-z
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