N eq o — Puncak serapan FTIR dan tugasan

Jawapan pantas

N eq o 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 N eq o

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

• 1384 cm⁻¹ keyakinan 1.0

  “The band at 1384 is indicative of the N=O stretching vibration that was produced by the trace amount of nitrate [38].”

  Miri 和 Sarani - 2018 - Biosynthesis, characterization and cytotoxic activ DOI: 10.1016/j.ceramint.2018.04.063
• 1384 cm⁻¹ keyakinan 1.0

  “The cm-1 could be due to N=O stretching vibration indicating traces of nitrate sharp band at 1384”

  Patil 等 - 2016 - Bio-therapeutic Potential and Cytotoxicity Assessm DOI: 10.1007/s12010-016-2121-9
• 1409 cm⁻¹ keyakinan 1.0

  “5) showed six peaks which indicate the pres1409.02 is assigned to N=O bending nitro groups.”

  Insecticidal potency of Aspergillus terreus against larvae and pupae of three mosquito species Anopheles stephensi, Culex quinquefasciatus, and Aedes aegypti DOI: 10.1007/s11356-015-4961-1
• 838 cm⁻¹ keyakinan 1.0

  “The band cm-1 observed at 1277 is associated with C-N stretching, cm-1, and the two distinct bands occur at 838 and cm-1 639 related to the C-C ring and C-N=O bending,”

  Effects of polyvinylpyrrolidone on structural and optical properties of willemite semiconductor nanoparticles by polymer thermal treatment method DOI: 10.1007/s10973-018-7874-7
• 502 cm⁻¹ keyakinan 1.0

  “1,502cm-1 appeared due to asymmetric N=O stretch.”

  Design, Synthesis, Characterization, and Computational Studies on Benzamide Substituted Mannich Bases as Novel, Potential Antibacterial Agents DOI: 10.1155/2014/732141
• 1505 cm⁻¹ keyakinan 1.0

  “The peak observed at 1612 attributed to N-H bending vibrations of alkenes, primary amines, and amides, and the peak cm-1 can be attributed to N-H bending vibrations of alkenes, primary amines, and amcm-1 at 1505 can be assigned to N=O stret”

  Eucalyptus globulus and Salvia officinalis Extracts Mediated Green Synthesis of Silver Nanoparticles and Their Application as an Antioxidant and Antimicrobial Agent DOI: 10.3390/plants11081085
• 750 cm⁻¹ keyakinan 1.0

  “FTIR data revealed that Ery-PLGA nanoparticles' peaks at around 3650 cm-1 and 3000 cm-1, attributed to O-H stretching vibrations, at 1760 cm-1 to C=O stretch, at 1460 cm-1 assigned to C-H link, at 1400 cm-1 to N=O binding, 1180 cm-1 and 109”

  Nano-Architectonics of Antibiotic-Loaded Polymer Particles as Vehicles for Active Molecules DOI: 10.3390/app12041998
• 1490 cm⁻¹ keyakinan 1.0

  “The peaks at 1490 and 1313 cm-1 are attributed to the N=O stretching vibrations of the coordinated nican be assigned to Zntrate group and the nitrate ion, respectively.”

  Deposition of Zinc Oxide Coatings on Wood Surfaces Using the Solution Precursor Plasma Spraying Process DOI: 10.3390/coatings11020183