Phosphate (PO4) — FTIR absorption peaks and assignments
These are the characteristic FTIR wavenumbers where Phosphate (PO4) tends to absorb, compiled from published literature and ranked by supporting evidence. Each assignment is traceable to a source (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 8 cited sources
Characteristic FTIR peaks for Phosphate (PO4)
| Wavenumber (cm⁻¹) | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| 960 | 14 | 13 | 0.95 |
| 1000 | 11 | 9 | 0.95 |
| 1100 | 10 | 8 | 0.9 |
| 1020 | 8 | 7 | 0.9 |
| 1030 | 7 | 7 | 1.0 |
| 962 | 7 | 5 | 0.9 |
| 600 | 6 | 5 | 0.9 |
| 603 | 6 | 4 | 0.9 |
| 602 | 5 | 5 | 1.0 |
| 566 | 5 | 5 | 1.0 |
| 1024 | 5 | 5 | 0.95 |
| 1240 | 5 | 4 | 0.9 |
| 1025 | 4 | 4 | 1.0 |
| 1080 | 4 | 4 | 1.0 |
| 961 | 4 | 4 | 0.9 |
| 565 | 4 | 4 | 0.9 |
| 1120 | 4 | 3 | 0.9 |
| 1090 | 4 | 3 | 0.9 |
| 564 | 3 | 3 | 1.0 |
| 1091 | 3 | 3 | 0.95 |
| 1045 | 3 | 3 | 0.9 |
| 1070 | 3 | 3 | 0.9 |
| 1032 | 3 | 3 | 0.9 |
| 1050 | 3 | 3 | 0.9 |
| 561 | 3 | 3 | 0.9 |
| 473 | 3 | 3 | 0.9 |
| 1087 | 3 | 3 | 0.9 |
| 601 | 3 | 3 | 0.9 |
| 1089 | 3 | 3 | 0.9 |
| 500 | 3 | 3 | 0.9 |
Showing the 30 best-supported peaks of 229 total for Phosphate (PO4).
Literature behind these assignments
-
902 cm⁻¹ confidence 1.0
“Symmetric vibrations and asymmetric stretching modes of non-bridging or P-O”
Ismail 等 - 2016 - Effects of titanium nanoparticles on self-cleaning DOI: 10.1016/j.materresbull.2015.11.022 -
1011 cm⁻¹ confidence 1.0
“Explicitly assigned to phosphate vibration.”
Wei 等 - 2018 - Enhanced chemical and spatial recognition of fish DOI: 10.1016/j.saa.2018.07.031 -
1080 cm⁻¹ confidence 1.0
“Explicit assignment: 'phosphate absorption occurring at 1080 cm-1'”
Bassan 等 - 2013 - Whole organ cross-section chemical imaging using l DOI: 10.1039/c3an01674a -
1073 cm⁻¹ confidence 1.0
“Explicitly assigned to phosphate band.”
Chatchawal 等 - 2021 - Detection of Human Cholangiocarcinoma Markers in S DOI: 10.3390/cancers13205109 -
1035 cm⁻¹ confidence 1.0
“explicit assignment”
Minnes 等 - 2017 - Using Attenuated Total Reflection-Fourier Transfor DOI: 10.1038/s41598-017-04678-6 -
1299 cm⁻¹ confidence 1.0
“Explicit assignment in text.”
Pourchet 等 - 2019 - New Reactive Isoeugenol Based Phosphate Flame Reta DOI: 10.1021/acssuschemeng.9b02629 -
566 cm⁻¹ confidence 1.0
“Explicit assignment: 'bands registered at 566 cm-1 and 602 cm-1 correspond to the bending mode of the phosphate'”
Predoi 等 - 2017 - Textural, Structural and Biological Evaluation of DOI: 10.3390/ma10030229 -
1178 cm⁻¹ confidence 1.0
“Characteristic absorption peak attributed to P-O-Ar.”
Que 等 - 2023 - Phosphorus-Containing Polybenzoxazine Aerogels wit DOI: 10.3390/ijms24054314
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