How can you identify humic acid from FTIR?
This page summarizes the recurring FTIR evidence reported for humic acid, 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 10 cited sources
Réponse rapide
humic acid 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.
Interprétation des pics
Matériaux / groupes possibles
| Groupe fonctionnel | Preuves |
|---|---|
| Alkyl C-H | 16 |
| Methacrylate | 15 |
| Acetate | 15 |
| Methoxy (OCH3) | 14 |
| Hydroxyl (O-H) | 14 |
| C-O single bond | 11 |
| Carboxyl (COOH) | 8 |
| Aromatic ring | 6 |
Logique du spectre
The logic here is evidence aggregation: repeated literature mentions of humic acid, 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.
Utilisation réelle
Cette page est conçue pour l＇identification des polymères, le contrôle qualité des matériaux entrants, l＇analyse des plastiques inconnus, l＇examen du contenu recyclé et l＇interprétation des spectres de référence appuyée par la littérature.
Erreurs courantes
- Déclarer une correspondance de matériau trop tôt parce qu＇un pic célèbre est présent.
- Ignorer la préparation d＇échantillon, les charges, l＇oxydation, l＇eau ou les additifs qui peuvent modifier le motif apparent.
- Utiliser des preuves de la littérature sans vérifier si votre propre mode d＇échantillonnage et la qualité du spectre sont comparables.
Conseil de vérification
Utilisez DSC, GC-MS ou TGA pour valider l＇hypothèse du matériau lorsque le motif de pics est ambigu ou mélangé.
Littérature derrière cette page
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confiance 4,0
humic acid
Antimycotic nail polish based on humic acid‐coated silver nanoparticles for onychomycosis DOI: 10.1002/jctb.6676 -
confiance 4,0
humic acid
Hu 等 - 2021 - Properties of humus-like substances isolated from DOI: 10.1080/03650340.2020.1818072 -
confiance 4,0
humic acid
Terrestrial humic-like fluorescence peak of chromophoric dissolved organic matter as a new potential indicator tracing the antibiotics in typical polluted watershed DOI: 10.1016/j.jenvman.2018.09.013 -
confiance 4,0
humic acid
Co-Thermal Oxidation of Lignite and Rice Straw for Synthetization of Composite Humic Substances: Parametric Optimization via Response Surface Methodology DOI: 10.3390/ijerph192416875 -
confiance 4,0
humic acid
Humic Acid Improves Zn Fertilization in Oxisols Successively Cultivated with Maize–Brachiaria DOI: 10.3390/molecules26154588 -
confiance 4,0
humic acid
Extraction of humic acid from peat and lignite and the thermal behavior of their mixtures with ammonium nitrate DOI: 10.1007/s10973-023-12326-7 -
confiance 4,0
humic acid
Yang 等 - 2021 - Multi-spectroscopic Investigation on Mechanism of DOI: 10.6023/A21080408 -
confiance 2,5
humic acid
Saxena 和 Brighu - 2020 - Optimized coagulation of humic acid and mineral tu DOI: 10.2166/ws.2020.141 -
confiance 1,0
humic acid
Kinetics and Thermodynamics of Uranium (VI) Adsorption onto Humic Acid Derived from Leonardite DOI: 10.3390/ijerph16091552 -
humic acid
Polarity-Based Sequential Extraction as a Simple Tool to Reveal the Structural Complexity of Humic Acids DOI: 10.3390/agronomy11030587
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