Amide — Puncak serapan FTIR dan tugasan
Ini adalah nombor gelombang FTIR ciri di mana Amide 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
Amide 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 Amide
| Nombor gelombang (cm⁻¹) | Fakta sokongan | Sumber dipetik | Keyakinan tertinggi |
|---|---|---|---|
| 1650 | 254 | 217 | 1.0 |
| 1550 | 123 | 109 | 1.0 |
| 1700 | 117 | 107 | 1.0 |
| 1640 | 107 | 98 | 1.0 |
| 1600 | 107 | 94 | 1.0 |
| 1660 | 93 | 79 | 1.0 |
| 1740 | 90 | 81 | 1.0 |
| 1655 | 87 | 82 | 1.0 |
| 1630 | 86 | 77 | 1.0 |
| 1540 | 86 | 77 | 1.0 |
| 1730 | 78 | 74 | 1.0 |
| 1720 | 73 | 68 | 1.0 |
| 1735 | 59 | 58 | 1.0 |
| 1645 | 54 | 51 | 1.0 |
| 1545 | 54 | 47 | 1.0 |
| 1240 | 49 | 45 | 1.0 |
| 1652 | 48 | 46 | 1.0 |
| 1654 | 48 | 45 | 1.0 |
| 3300 | 48 | 44 | 1.0 |
| 1656 | 47 | 41 | 1.0 |
| 1500 | 45 | 38 | 1.0 |
| 1644 | 44 | 40 | 1.0 |
| 1635 | 41 | 40 | 1.0 |
| 1653 | 41 | 37 | 1.0 |
| 1638 | 41 | 37 | 1.0 |
| 1750 | 40 | 38 | 1.0 |
| 1637 | 40 | 36 | 1.0 |
| 1651 | 39 | 36 | 1.0 |
| 1639 | 38 | 35 | 1.0 |
| 1657 | 36 | 31 | 1.0 |
Menunjukkan 30 puncak terbaik disokong daripada 1461 jumlah untuk Amide.
Bahan yang mungkin
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
-
1566 cm⁻¹ keyakinan 1.0
“1566cm-1, R2 due to NH in-plane bending, triazine stretching In every case a, good linear fit was obtained with valand C-N stretching, respectively, [23] and so, these bands ues >0.999.”
Armenta 等 - 2004 - Determination of cyromazine in pesticide commercia DOI: 10.1016/j.aca.2004.02.063 -
968 cm⁻¹ keyakinan 1.0
“2000cm-1, 1.21mgg-1 baseline established in for a ChlorThe absorption bands of Chlorpyrifos are located at 1549, pyrifosstandardandthenoisemeasuredinthesameregionfor 968cm-1, 1412, 1339, 1165, 1088, 1025 and due to C N a blank spectrum and”
Armenta 等 - 2005 - A validated and fast procedure for FTIR determinat DOI: 10.1016/j.talanta.2005.03.008 -
1650 cm⁻¹ keyakinan 1.0
“CdO cm-1, the band in the ester group at 1751 that of 1700 cm-1 CdO cm-1 On the other hand, the Acesulfame-K band at 945 does due to the stretch in carboxylic acids, and the band CdO cm-1 not overlap with any Aspartame band, but the low sig”
Armenta 等 - 2004 - FTIR determination of aspartame and acesulfame-k i DOI: 10.1021/jf049218l -
1632 cm⁻¹ keyakinan 1.0
“The transport mechanism of showed amide I and II absorption peaks at 1632 and 1554 19 cm@1, hydrogels was a combination of non-Fickian and Super Case II.”
Arikibe 等 - 2019 - pH-Responsive Studies of Bacterial CelluloseChito DOI: 10.1002/slct.201902290 -
1735 cm⁻¹ keyakinan 1.0
“The new peak appears cm-1 at 1735 which indicates the presence of a C=O bond from carboxylic acid.”
Arizka 等 - 2019 - Synthesis and Physical Properties Characterization DOI: 10.1088/1757-899X/546/4/042004 -
1713 cm⁻¹ keyakinan 1.0
“This means that the addition shows sharp absorption and low intensity at 1712.8 cm-1 of DVB is able to shift the hydroxyl bonds in blends, which indicates the presence of C=O carbonyl so that DVB makes the blends more compatible.”
Aritonang 等 - 2019 - Grafting of Oleic Acid On Cyclic Natural Rubber Re DOI: 10.13005/ojc/350119 -
1297 cm⁻¹ keyakinan 1.0
“Other less important absorption bands are located at 1582 CdC cm-1, due to the stretching in chloroalkenes, and 1297 cm-1, and 1175 corresponding to amide and benzene ring breathing, respectively (20).”
Armenta 等 - 2005 - FTIR approaches for diuron determination in commer DOI: 10.1021/jf050268f -
3302 cm⁻¹ keyakinan 1.0
“Amongst the gelatin the amide A group was recorded at 3304, 3291, 3292, and 3302 cm-1 for PG-FG 100-0, PGfilms, FG showed the lowest peak amide B wave number, indicating the single bond NH3 FG 50-50, PG-FG 0-100, and BG, respectively, which”
Application of Poultry Gelatin to Enhance the Physicochemical, Mechanical, and Rheological Properties of Fish Gelatin as Alternative Mammalian Gelatin Films for Food Packaging DOI: 10.3390/foods12030670
Lihat Amide 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.