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Ang FTIR pattern ay pinaka-ayon sa isang styrenic aromatic hydrocarbon polymer, na may Polystyrene bilang pinakamalapit na tugma sa library. Ang direksyong ito ay sinusuportahan ng aromatic C-H stretching malapit sa 3031-3081 cm-1, aromatic ring bands sa 1604 at 1493 cm-1, malakas na out-of-plane aromatic C-H bands sa 701, 751, at 758 cm-1, at aliphatic C-H stretches sa 2926 at 2857 cm-1, na magkakasama ay katangian ng isang phenyl-substituted hydrocarbon polymer. Gayunpaman, ang kumpiyansa sa library ay napakababa at walang direktang sanggunian o kaugnay na literatura na ebidensya na independiyenteng nagkukumpirma ng isang partikular na entity assignment, kaya ang pinakapanghahawakang konklusyon ay isang styrenic aromatic hydrocarbon polymer direction sa halip na isang matibay na entity identification.
Inirerekomendang susunod na hakbang: 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.
| Ranggo | Itugma ang % | Compound | SMILES | Blg. ng Spectrum | Aksyon |
|---|---|---|---|---|---|
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| # | Bilang ng alon (cm⁻¹) | Absorbans | Assignment | Pagsipi | Katayuan ng pagtatalaga | |
|---|---|---|---|---|---|---|
| 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 | - | - | - |
Gamitin ang lugar na ito upang ipagpatuloy ang interpretasyon, magtanong, o magdagdag ng dagdag na ebidensya ng pagpapatunay.
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.
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