How can you identify gypsum from FTIR?
This page summarizes the recurring FTIR evidence reported for gypsum, 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 13 cited sources
Ātra atbilde
gypsum 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 |
|---|---|
| Hydroxyl (O-H) | 14 |
| Silicon-oxygen (Si-O) | 8 |
| Methacrylate | 7 |
| Acetate | 7 |
| Methoxy (OCH3) | 6 |
| C-O single bond | 6 |
| Amide | 5 |
| Carbohydrate | 3 |
Spektra loģika
The logic here is evidence aggregation: repeated literature mentions of gypsum, 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 0,9
gypsum
Salvadori 等 - 2003 - Evaluation of gypsum and calcium oxalates in deter DOI: 10.1081/SL-120026615 -
pārliecība 0,9
Gypsum
Mineralogical Analysis of Sand Roses and Sand Dunes Samples from Two Regions of South Algeria DOI: 10.1007/s12633-018-9974-1 -
pārliecība 0,9
gypsum
Chemometrics approach to FT-IR hyperspectral imaging analysis of degradation products in artwork cross-section DOI: 10.1016/j.clay.2010.10.021. -
pārliecība 0,9
gypsum
Deviese 等 - 2017 - A multi-analytical approach using FTIR, GCMS and DOI: 10.1016/j.microc.2017.03.012 -
pārliecība 0,8
gypsum
Damjanovic 等 - 2015 - Spectroscopic investigation of two Serbian icons p DOI: 10.2298/JSC140722099D -
pārliecība 0,8
gypsum
Chemical, morphological and mechanical study of the ageing of textile flax fibers from 17th/18th-century paintings on canvas DOI: 10.1016/0305-4403(75)90059-X. -
pārliecība 0,8
gypsum
Characterization of the materials and techniques of a birthday inscribed lacquer plaque of the Qing Dynasty DOI: 10.1186/s40494-020-00462-4 -
pārliecība 0,7
gypsum
Campbell 和 Smith - 2022 - Multi-technique analysis of pigments on sandstone DOI: 10.1186/s40494-022-00790-7 -
pārliecība 0,7
gypsum
Synthesis of nano-crystallite gypsum and bassanite from waste Pila globosa shells: crystallographic characterization DOI: 10.1039/d2ra04881g -
pārliecība 0,7
gypsum
Aiding the cleaning of four 19th-century Tsimshian house posts: investigation of museum-applied surface coatings and original polychromy DOI: 10.1186/s40494-021-00513-4
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