Gweld yr adroddiad uchod. Defnyddiwch y sylwadau isod os oes angen ymgysylltu pellach arnoch.
Mae'r patrwm FTIR yn fwyaf cyson â pholymer hydrocarbon aromatig styrenig, gyda Polystyrene fel y cyfatebiad llyfrgell agosaf. Cefnogir y cyfeiriad hwn gan ymestyn C-H aromatig ger 3031-3081 cm-1, bandiau cylch aromatig ar 1604 a 1493 cm-1, bandiau C-H aromatig allan-o-blân cryf ar 701, 751, a 758 cm-1, ac ymestyniadau C-H aliffatig ar 2926 a 2857 cm-1, sydd gyda'i gilydd yn nodweddiadol o bolimer hydrocarbon wedi'i amnewid â ffenyl. Fodd bynnag, mae hyder y llyfrgell yn isel iawn ac nid oes unrhyw dystiolaeth uniongyrchol o gyfeirnod neu lenyddiaeth gysylltiedig yn cadarnhau aseiniad endid penodol yn annibynnol, felly y casgliad mwyaf amddiffynadwy yw cyfeiriad polymer hydrocarbon aromatig styrenig yn hytrach na nodi endid pendant.
Camau nesaf a argymhellir: Compare the sample directly against a verified Polystyrene reference spectrum collected under the same ATR or transmission conditions, focusing on the relative intensities and exact positions of the 1604, 1493, 758, and 701 cm-1 bands. Inspect the full spectrum for the typical styrenic fingerprint-region pattern and for any weak heteroatom-associated bands that could indicate additives, oxidation, or copolymerization. If a firmer identification is needed, use complementary methods such as Raman spectroscopy, DSC or TGA, or pyrolysis-GC/MS to distinguish Polystyrene from other styrenic polymers or blends. If the sample is a manufactured article, analyze a cleaned interior cross-section to reduce interference from surface coatings, weathering, or contamination.
| Safle | Cyfateb % | Cyfansawdd | SMILES | Rhif sbectrwm | Gweithred |
|---|---|---|---|---|---|
| Yn llwytho ymgeiswyr llyfrgell... | |||||
| # | Rhif ton (cm⁻¹) | Amsugnedd | Asiwniad | Dyfyniad | Statws neilltuaeth | |
|---|---|---|---|---|---|---|
| 1 | · | 701 | 1.00 | - | - | - |
| 2 | · | 2926 | 0.92 | - | - | - |
| 3 | · | 1450 | 0.91 | - | - | - |
| 4 | · | 3031 | 0.91 | - | - | - |
| 5 | · | 751 | 0.83 | - | - | - |
| 6 | · | 758 | 0.71 | - | - | - |
| 7 | · | 1493 | 0.41 | - | - | - |
| 8 | · | 3071 | 0.37 | - | - | - |
| 9 | · | 3081 | 0.33 | - | - | - |
| 10 | · | 2857 | 0.31 | - | - | - |
| 11 | · | 1604 | 0.28 | - | - | - |
| 12 | · | 1025 | 0.20 | - | - | - |
| 13 | · | 903 | 0.14 | - | - | - |
| 14 | · | 1070 | 0.13 | - | - | - |
| 15 | · | 1360 | 0.11 | - | - | - |
| 16 | · | 1376 | 0.11 | - | - | - |
Defnyddiwch yr ardal hon i barhau â'r dehongliad, gofyn cwestiynau, neu ychwanegu tystiolaeth ddilysu ychwanegol.
FTIR.fun
The user from Taiwan (IP: 2407::) uploaded a DOCX file containing three IR spectra. Swipe up to view the qualitative analysis of the first spectrum. The user also expressed intent to calculate sample thickness using interference peaks. Based on the spectra, the analysis was performed at wave numbers 2501 and 2563, yielding an interference peak difference (V₁ - V₂) of 62 cm-1 and ΔN = 1. By inputting the film's refractive index(n), the sample thickness (d) was determined.Here is the original spectrum of the sample extracted from the DOCX file.
en&2