Aldehyde (CHO) — Puncak serapan FTIR dan tugasan
Ini adalah nombor gelombang FTIR ciri di mana Aldehyde (CHO) cenderung menyerap, disusun dari literatur yang diterbitkan dan disusun berdasarkan bukti sokongan. Setiap tugasan dapat dikesan ke sumber (DOI) dan disahkan silang terhadap 130,000+ spektrum rujukan dan graf pengetahuan kami.
Backed by 8 cited sources
Jawapan pantas
Aldehyde (CHO) biasanya ditetapkan dengan mencari kelompok berulang puncak ciri dan bukan satu nombor tepat buku teks. Jadual di bawah menunjukkan di mana literatur paling kerap meletakkan kumpulan ini dalam FTIR, yang disusun mengikut bukti terkumpul.
Puncak FTIR ciri untuk Aldehyde (CHO)
| Nombor gelombang (cm⁻¹) | Fakta sokongan | Sumber dipetik | Keyakinan tertinggi |
|---|---|---|---|
| 1730 | 6 | 6 | 1.0 |
| 1750 | 5 | 5 | 1.0 |
| 1700 | 4 | 3 | 1.0 |
| 1740 | 4 | 3 | 1.0 |
| 1715 | 3 | 3 | 1.0 |
| 1770 | 3 | 3 | 1.0 |
| 860 | 3 | 3 | 0.9 |
| 1080 | 3 | 3 | 0.9 |
| 1150 | 3 | 3 | 0.9 |
| 1160 | 3 | 3 | 0.9 |
| 1240 | 2 | 2 | 1.0 |
| 1705 | 2 | 2 | 1.0 |
| 1745 | 2 | 2 | 1.0 |
| 1727 | 2 | 2 | 1.0 |
| 1725 | 2 | 2 | 1.0 |
| 1721 | 2 | 2 | 1.0 |
| 1720 | 2 | 2 | 1.0 |
| 1732 | 2 | 2 | 1.0 |
| 1714 | 2 | 2 | 1.0 |
| 1453 | 2 | 2 | 1.0 |
| 930 | 2 | 2 | 0.9 |
| 2960 | 1 | 1 | 1.0 |
| 2970 | 1 | 1 | 1.0 |
| 1743 | 1 | 1 | 1.0 |
| 2725 | 1 | 1 | 1.0 |
| 1698 | 1 | 1 | 1.0 |
| 1100 | 1 | 1 | 1.0 |
| 2920 | 1 | 1 | 1.0 |
| 1621 | 1 | 1 | 1.0 |
| 2815 | 1 | 1 | 1.0 |
Menunjukkan 30 puncak terbaik disokong daripada 121 jumlah untuk Aldehyde (CHO).
Logik spektrum
Tugasan kumpulan berfungsi menjadi lebih yakin apabila beberapa jalur yang dijangkakan muncul bersama. Gunakan halaman ini untuk mencari puncak yang paling disokong, kemudian sahkan bahawa sampel yang sama menunjukkan corak yang koheren dan bukannya satu hit terpencil.
Penggunaan dunia sebenar
Halaman-halaman ini berguna untuk analisis bahan yang tidak diketahui, penjelasan puncak dalam laporan, penyelesaian masalah polimer, dan mengesahkan sama ada keluarga bahan calon adalah boleh dipercayai secara kimia.
Kesilapan biasa
- Menggunakan satu halaman kumpulan berfungsi sebagai keputusan bahan lengkap tanpa memeriksa spektrum yang lain.
- Dengan menganggap jalur yang paling kuat sentiasa menjadi yang paling diagnostik.
- Melupakan bahawa pemprosesan, bahan tambahan, penuaan, dan campuran boleh mengalihkan atau melebarkan puncak yang dijangkakan.
Nasihat pengesahan
Gunakan DSC, GC-MS, atau TGA apabila beberapa keluarga bahan berkongsi jalur yang serupa atau apabila kesan campuran menyebabkan tugasan FTIR tidak pasti.
Literatur di sebalik penetapan ini
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1745 cm⁻¹ keyakinan 1.0
“cm(cid:3)1 1747cm(cid:3)1 1745cm(cid:3)1 peak at 1745 on both spectra exhibited similar intensity for which showed stronger than that at of C4 cm(cid:3)1 the content of aldehydes, ketones and carbonyl stretching vibrain intensity.”
Chen 等 - 2014 - Determination of chemical changes in Isatis indigo DOI: 10.1016/j.saa.2014.01.048 -
1730 cm⁻¹ keyakinan 1.0
“appearance of carboxylic acid and aldehyde peaks at 1730 and 3.1.”
Chu 和 Yaylayan - 2009 - FTIR monitoring of oxazolidin-5-one formation and DOI: 10.1016/j.carres.2008.10.011 -
1020 cm⁻¹ keyakinan 1.0
“On the other hand, peak 3 cm-1 at 1020 of the TCHO region represents non-structural CHO such as starch [15].”
Gene-Transformation-Induced Changes in Chemical Functional Group Features and Molecular Structure Conformation in Alfalfa Plants Co-Expressing Lc-bHLH and C1-MYB Transcriptive Flavanoid Regulatory Genes: Effects of Single-Gene and Two-Gene Insertion DOI: 10.3390/ijms18030664 -
900 cm⁻¹ keyakinan 1.0
“EXE 9 and CRE + EXE 9), = = = cating bands assigned to the NH stretching vibrations feeding and supplementation protocols, tissue prepacm21) (~3000-3500 and (b) indicating bands assigned ration, and FT-IR spectrometry evaluation were also t”
Jeronimo 等 - 2012 - Detection of Creatine in Rat Muscle by FTIR Spectr DOI: 10.1007/s10439-012-0549-9 -
1453 cm⁻¹ keyakinan 1.0
“The 2928cm-1 peaks positioned at about 1453 and of wavelength were due to the stretching C-H of alkane methyl and aldehyde doublet groups.”
Jing 等 - 2019 - Biosynthesis of copper oxide nanoparticles and the DOI: 10.1016/j.jphotobiol.2019.111557 -
1735 cm⁻¹ keyakinan 1.0
“Attention should be paid to a cm-1) very important area, which is only slightly marked in our spectra (with a maximum at about 1735 and is due to the stretching vibrations of functional groups such as ketone C = O of fructose and aldehyde C”
Identification of sugars and phenolic compounds in honey powders with the use of GC–MS, FTIR spectroscopy, and X-ray diffraction DOI: 10.1038/s41598-020-73306-7 -
1750 cm⁻¹ keyakinan 1.0
“The bands at 1800-1600 with a cm-1, prominent peak at 1750 were assigned to C=O stretching vibrations of aldehydes and D ketones [29].”
Nkwain 等 - 2018 - Coupling pyrolysis with mid-infrared spectroscopy DOI: 10.1016/j.jaap.2018.04.004 -
1727 cm⁻¹ keyakinan 1.0
“In addition, Cya produced a peak at 1727 due to stretching vibration of the cm-1, aldehyde group.”
Improvement of stability due to a cyclamen aldehyde/β-cyclodextrin inclusion complex DOI: 10.1016/j.molstruc.2020.128161
Lihat Aldehyde (CHO) dalam spektrum anda sendiri
Muat naik spektrum FTIR anda dan dapatkan laporan tafsiran penuh — tugasan puncak dengan petikan literatur, padanan perpustakaan, dan analisis berasaskan literatur — dalam beberapa saat.