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| Elektronowy Rezonans Paramagnetyczny× | Spektrometria mas FT-ICR× | |
|---|---|---|
| Dziedzina | Spektroskopia | Spektroskopia |
| Rodzina | Process / pipeline | Process / pipeline |
| Rok powstania≠ | 1945 | 1974 |
| Twórca≠ | Evgeny Zavoiskii | Alan Marshall |
| Typ≠ | Spectroscopic technique | Mass spectrometry technique |
| Źródło pierwotne≠ | Zavoiskii, E. K. (1945). Paramagnetic relaxation of liquid solutions for perpendicular fields. Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki, 15(6), 378-380. link ↗ | Comisarow, M. B., & Marshall, A. G. (1974). Fourier transform ion cyclotron resonance spectroscopy. Chemical Physics Letters, 25(2), 282-283. DOI ↗ |
| Inne nazwy | EPR spectroscopy, ESR, electron spin resonance | FT-ICR-MS, Fourier Transform ICR, ICR mass spectrometry |
| Pokrewne≠ | 3 | 4 |
| Podsumowanie≠ | Electron Paramagnetic Resonance (EPR), also called Electron Spin Resonance (ESR), is a spectroscopic technique that detects and characterizes unpaired electrons in molecules and materials. Discovered by Zavoiskii in 1945, EPR measures the absorption of microwave radiation by paramagnetic species in a magnetic field, providing information about electron spin states, local electronic environment, and molecular dynamics. | 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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