What absorbs at 1338 cm⁻¹ in an FTIR spectrum?
A band near 1338 cm⁻¹ can point to several functional groups. Below are the most likely assignments, ranked by how much published evidence supports each — every one traceable to literature (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 8 cited sources
可能的官能团归属
| 官能团 | 支持性事实 | 引用来源 | 最高置信度 |
|---|---|---|---|
| Protein | 2 | 2 | 0.9 |
| Amide | 1 | 1 | 0.9 |
| Alkyl C-H | 1 | 1 | 0.9 |
| Hydroxyl (O-H) | 1 | 1 | 0.9 |
| Borate | 1 | 1 | 0.8 |
| Ammonium | 1 | 1 | 0.8 |
排名反映了累积的文献证据，而非单一的权威规则。请始终对照您的样品背景进行确认。
这些分配背后的文献
-
Protein 置信度 0.9
“Used to estimate integrity of collagen network.”
Oinas 等 - 2016 - Imaging of Osteoarthritic Human Articular Cartilag DOI: 10.1038/srep30008 -
Protein 置信度 0.9
“Explicit assignment: collagen band at 1338 cm-1.”
Dogan 等 - 2013 - ATR-FTIR spectroscopy reveals genomic loci regulat DOI: 10.1186/1471-2164-14-386 -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment: 'signal at 1338 cm-1 that could be caused both by the hydroxyl group bending'”
Foschi 等 - 2022 - Advanced Analytical Approach Based on Combination DOI: 10.3390/ph15060763 -
Alkyl C-H 置信度 0.9
“Absorption peak at 1338 related to stretching bond of C-H”
Koysuren - 2018 - Solid-Phase Photocatalytic Degradation of Polyviny DOI: 10.3390/catal8110499 -
置信度 0.9
“1338 cm-1 flat band assigned to adenine ring vibrations in literature.”
Rakshit 等 - 2022 - Influence of Citrate and Phosphate on the Adsorpti DOI: 10.3389/fenvs.2022.894581 -
Amide 置信度 0.9
“Explicit assignment in text: '1338cm-1) (amide I and collagen CH2 side chain peak)'.”
Rieppo 等 - 2019 - Histochemical quantification of collagen content i DOI: 10.1371/journal.pone.0224839 -
置信度 0.9
“Band at 1338 cm-1 used for distinguishing collagen and PGs.”
Swietlicka 等 - 2021 - Fourier Transform Infrared Microspectroscopy Combi DOI: 10.3390/ijms22179189 -
置信度 0.8
“Wagging of proline side chain.”
Samouillan 等 - 2020 - Biophysical and Lipidomic Biomarkers of Cardiac Re DOI: 10.3390/biom10111471
是否有此波段的光谱？
上传您的FTIR光谱，几秒钟内即可获得完整的解读报告——包含带文献引用的峰分配、库匹配和带有置信度评级的证据链。
解读我的光谱