Oxalate — FTIR-absorptions-toppe og tildelinger
Dette er de karakteristiske FTIR-bølgetal, hvor Oxalate har tendens til at absorbere, samlet fra offentliggjort litteratur og rangeret efter understøttende evidens. Hver tildeling kan spores til en kilde (DOI) og er krydsvalideret mod vores 320,000+ referencespektrer og vidensgraf.
Understøttet af 8 citerede kilder
Hurtigt svar
Oxalate tildeles normalt ved at lede efter en tilbagevendende klynge af karakteristiske toppe frem for et præcist lærebogsnummer. Tabellen nedenfor viser, hvor litteraturen oftest placerer denne gruppe i FTIR, rangeret efter akkumuleret evidens.
Karakteristiske FTIR-toppe for Oxalate
| Bølgetal (cm⁻¹) | Understøttende fakta | Citerede kilder | Højeste tillid |
|---|---|---|---|
| 1620 | 2 | 1 | 1,0 |
| 962 | 1 | 1 | 1,0 |
| 924 | 1 | 1 | 1,0 |
| 1738 | 1 | 1 | 1,0 |
| 880 | 1 | 1 | 1,0 |
| 1318 | 1 | 1 | 1,0 |
| 1637 | 1 | 1 | 1,0 |
| 781 | 1 | 1 | 1,0 |
| 1308 | 1 | 1 | 1,0 |
| 777 | 1 | 1 | 1,0 |
| 1315 | 1 | 1 | 1,0 |
| 1600 | 1 | 1 | 1,0 |
| 795 | 1 | 1 | 1,0 |
| 1286 | 1 | 1 | 1,0 |
| 1697 | 1 | 1 | 1,0 |
| 1314 | 1 | 1 | 1,0 |
| 1721 | 1 | 1 | 1,0 |
| 784 | 1 | 1 | 1,0 |
| 885 | 1 | 1 | 1,0 |
| 1354 | 1 | 1 | 0,9 |
| 749 | 1 | 0 | 1,0 |
| 1585 | 1 | 0 | 1,0 |
| 1590 | 1 | 0 | 1,0 |
| 1317 | 1 | 0 | 1,0 |
Spektrumlogik
En funktionel gruppetildeling bliver mere sikker, når flere forventede bånd optræder sammen. Brug denne side til at finde de bedst understøttede peaks, og bekræft derefter, at den samme prøve udviser et sammenhængende mønster snarere end et enkelt isoleret hit.
Anvendelse i virkeligheden
Disse sider er nyttige til analyse af ukendte materialer, topforklaring i rapporter, polymerfejlfinding og verifikation af, om en kandidatmaterialefamilie er kemisk plausibel.
Almindelige fejl
- Brug af én funktionel-gruppe-side som en komplet materialebedømmelse uden at kontrollere resten af spektret.
- Antager, at det stærkeste bånd altid er det mest diagnostiske.
- At glemme, at forarbejdning, tilsætningsstoffer, ældning og blandinger kan flytte eller udvide forventede toppe.
Verifikationsrådgivning
Brug DSC, GC-MS eller TGA, når flere materialefamilier deler lignende bånd, eller når blandings-effekter gør FTIR-tildelingen usikker.
Litteratur bag disse tildelinger
-
885 cm⁻¹ tillid 1,0
“Figure 2 Magnified view of normalized FTIR absorption spectra of standard compound mixtures cm-1) cm-1) (A) and calcium oxalate stones (B), showing COM (885 and 950 and COD (912 P absorption peaks;”
Quantitative analysis of calcium oxalate hydrate urinary stones using FTIR and 950/912 cm−1 peak ratio DOI: 10.1016/j.vibspec.2019.03.006 -
784 cm⁻¹ tillid 1,0
“cm(cid:3)1 oxalate.[17] University] 784 was chosen as the best one to consider for calcium The cm(cid:3)1 ratio of the absorbances of the oxalate peak at 784 with the PB peak at State [Pennsylvania by”
Evaluation of Gypsum and Calcium Oxalates in Deteriorated Mural Paintings by Quantitative FTIR Spectroscopy DOI: 10.1081/SL-120026615 -
1721 cm⁻¹ tillid 1,0
“Initially there is a dramatic increase in the shallow trap absorption which dominates the spectral changes, as well as growth in superimposed adsorbed oxalate peaks at 1721, 1410, 1308, and 1256 cm-1.”
Shallow Electron Trap, Interfacial Water, and Outer-Sphere Adsorbed Oxalate IR Absorptions Correlate during UV Irradiation of Photocatalytic TiO2 Films in Aqueous Solution DOI: 10.1021/jp102723u -
1314 cm⁻¹ tillid 1,0
“peaks at 1314 and 1591 IR peaks indicative of inner-sphere adsorbed oxalate are also observed for”
Adsorption of organic matter at mineral/water interfaces: I. ATR-FTIR spectroscopic and quantum chemical study of oxalate adsorbed at boehmite/water and corundum/water interfaces DOI: 10.1016/j.gca.2004.04.025 -
795 cm⁻¹ tillid 1,0
“reported in literature due to the incomplete decomposition of the products and two prominent cm-1 cm-1 peaks appeared at 795 (La-O) and 1316 (C-O) reveals the existence of the oxalate ion cm-1 cm-1 while in this research work these peaks ap”
Study of structural, optical and electrical properties of La3+doped Mg0.25 Ni0.15 Cu0.25 Co0.35 Fe2-x Lax O4 spinel ferrites DOI: 10.1016/j.physb.2020.412565 -
1600 cm⁻¹ tillid 1,0
“Above this potential, however, the intensities of these two bands diverge, which can be attributed to 53 cm-1 an increase of the oxalate band at 1600 enhancing the intensity of the glycolate band (see also the increase 54 cm-1).”
Ethylene Glycol Electrooxidation on Smooth and Nanostructured Pd Electrodes in Alkaline Media DOI: 10.1002/fuce.200900120 -
1315 cm⁻¹ tillid 1,0
“the chemical composition of the ectopic calcificaThe IR spectra collected by the mIRage™ expericm-1 tions, the presence of IR bands at 1315 clearly mental set up are presented in Figure 8b, each specindicates the presence of calcium oxalate”
Using mid infrared to perform investigations beyond the diffraction limits of microcristalline pathologies: advantages and limitation of Optical PhotoThermal IR spectroscopy DOI: 10.5802/crchim.196 -
777 cm⁻¹ tillid 1,0
“The band around 777 has been Opuntia attributed to OCO deformations of calcium oxalate presents in the cladodes [60].”
Opuntia spp. Fibre Characterisation to Obtain Sustainable Materials in the Composites Field DOI: 10.3390/polym13132085
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