Tazama ripoti hapo juu. Tumia maoni hapa chini ikiwa unahitaji mjadala wa ufuatiliaji.
Muundo wa FTIR unalingana zaidi na polymeri ya hidrokaboni yenye styrenic na aromatiki, huku Polystyrene ikiwa mechi wa karibu wa maktaba. Mwelekeo huu unaungwa mkono na kunyosha kwa C-H ya aromatiki karibu na 3031-3081 cm-1, mikondo ya pete ya aromatiki katika 1604 na 1493 cm-1, mikondo mikali ya C-H ya aromatiki nje ya ndege katika 701, 751, na 758 cm-1, na kunyosha kwa C-H ya aliphatic katika 2926 na 2857 cm-1, ambayo kwa pamoja ni sifa ya polymeri ya hidrokaboni iliyobadilishwa na phenyl. Hata hivyo, imani ya maktaba ni ndogo sana na hakuna ushahidi wa moja kwa moja wa kumbukumbu au fasihi unaothibitisha kwa uhuru mgao mahususi wa chombo, kwa hivyo hitimisho linaloteteleka zaidi ni mwelekeo wa polymeri ya hidrokaboni yenye styrenic na aromatiki badala ya kitambulisho thabiti cha chombo.
Hatua zinazofuata zilizopendekezwa: 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.
| Cheo | Linganisha % | Kiwanja | SMILES | Nambari ya wigo | Kitendo |
|---|---|---|---|---|---|
| Inapakia wagombea wa maktaba... | |||||
| # | Nambari ya mawimbi (cm⁻¹) | Mnyonyo | Mgawo | Nukuu | Hali ya ugawaji | |
|---|---|---|---|---|---|---|
| 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 | - | - | - |
Tumia eneo hili kuendelea na ufafanuzi, kuuliza maswali, au kuongeza ushahidi wa ziada wa uthibitishaji.
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