مقایسهٔ روشها
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| کوسی (COSY)× | طیفسنجی تشدید مغناطیسی سیکلوترون تبدیل فوریه (FT-ICR)× | |
|---|---|---|
| حوزه | طیفسنجی | طیفسنجی |
| خانواده | Process / pipeline | Process / pipeline |
| سال پیدایش≠ | 1976 | 1974 |
| پدیدآور≠ | Wüthrich Kurt | Alan Marshall |
| نوع≠ | Two-dimensional pulse sequence | Mass spectrometry technique |
| منبع بنیادین≠ | Aue, W. P., Bartholdi, E., & Ernst, R. R. (1976). Two-dimensional spectroscopy. Application to nuclear magnetic resonance. The Journal of Chemical Physics, 64(5), 2229-2246. DOI ↗ | Comisarow, M. B., & Marshall, A. G. (1974). Fourier transform ion cyclotron resonance spectroscopy. Chemical Physics Letters, 25(2), 282-283. DOI ↗ |
| نامهای دیگر | COSY NMR, 2D COSY, 1H-1H COSY | FT-ICR-MS, Fourier Transform ICR, ICR mass spectrometry |
| مرتبط | 4 | 4 |
| خلاصه≠ | Correlation Spectroscopy (COSY) is a two-dimensional NMR technique that correlates proton chemical shifts through scalar coupling (J-coupling), revealing which protons are magnetically coupled and hence bonded through multiple bonds. Developed by Aue, Bartholdi, and Ernst in 1976, COSY became one of the most important tools in structural elucidation, enabling chemists to map out proton connectivity patterns and deduce molecular topology without isotopic labeling. | Fourier Transform Ion Cyclotron Resonance (FT-ICR) mass spectrometry is an advanced analytical technique that combines magnetic confinement of ions with Fourier transform data processing to achieve exceptional mass accuracy and resolution. Developed by Comisarow and Marshall in 1974, FT-ICR-MS enables the determination of exact masses and elemental compositions of complex molecules, making it invaluable for environmental chemistry, metabolomics, petroleum characterization, and structural elucidation of unknowns. |
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