How can you identify protein from FTIR?
This page summarizes the recurring FTIR evidence reported for protein, 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 42 cited sources
Ātra atbilde
protein 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.
Pīķa interpretācija
Iespējamie materiāli / grupas
| Funkcionālā grupa | Pierādījumi |
|---|---|
| Amide | 103 |
| Carbonyl (C=O) | 18 |
| N h | 14 |
| Methacrylate | 14 |
| Acetate | 14 |
| Carboxyl (COOH) | 13 |
| Alkyl C-H | 13 |
| Secondary amine | 11 |
Spektra loģika
The logic here is evidence aggregation: repeated literature mentions of protein, 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.
Reālās pasaules izmantošana
Šī lapa ir paredzēta polimēru identificēšanai, ienākošo materiālu kvalitātes kontrolei, nezināmas plastmasas analīzei, pārstrādātā satura pārskatam un ar literatūru pamatotai references spektru interpretācijai.
Biežākās kļūdas
- Pārāk agri paziņot par materiāla atbilstību, jo ir viens pazīstams pīķis.
- Ignorējot parauga sagatavošanu, pildvielas, oksidāciju, ūdeni vai piedevas, kas var mainīt šķietamo modeli.
- Izmantojot literatūras pierādījumus, nepārbaudot, vai jūsu pašu paraugu ņemšanas režīms un spektra kvalitāte ir salīdzināmi.
Verifikācijas padoms
Izmantojiet DSC, GC-MS vai TGA, lai apstiprinātu materiāla hipotēzi, ja pīķu modelis ir neskaidrs vai jaukts.
Literatūra aiz šīs lapas
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pārliecība 1,0
protein
Fourier transform infrared spectroscopy coupled with machine learning classification for identification of oxidative damage in freeze-dried heart valves DOI: 10.1038/s41598-021-91802-2 -
pārliecība 0,9
protein
van Thor 等 - 2005 - Assignments of the Pfr-Pr FTIR difference spectrum DOI: 10.1021/jp052323t -
pārliecība 0,9
protein
Bergo 等 - 2009 - Active Water in Protein-Protein Communication with DOI: 10.1021/bi802180a. -
pārliecība 0,9
protein
Malferrari 等 - 2012 - A New Method for D2OH2O Exchange in Infrared Spec DOI: 10.1155/2012/791342 -
pārliecība 0,9
protein
In‐line monitoring of protein concentration with MIR spectroscopy during UFDF DOI: 10.1002/elsc.202200050 -
pārliecība 0,9
protein
Sasimowski 等 - 2020 - Analysis of Selected Properties of Biocomposites B DOI: 10.3390/ma13184182 -
pārliecība 0,9
protein
Protein Conformation in Amorphous Solids by FTIR and by Hydrogen/Deuterium Exchange with Mass Spectrometry DOI: 10.1529/biophysj.108.139899 -
pārliecība 0,9
protein
Usoltsev 等 - 2020 - FTIR Spectroscopy Study of the Secondary Structure DOI: 10.3390/biom10040606 -
pārliecība 0,8
protein
Cacao 等 - 2013 - High-Resolution, High-Throughput, Positive-Tone Pa DOI: 10.1371/journal.pone.0056835 -
pārliecība 0,8
protein
Onodera 等 - 2007 - Label-free detection of protein-protein interactio DOI: 10.1021/la7022192
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