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2024-10-25 18:09本頁面
【正文】 meter proton NMR 1970s, the development of the FT instrument carbon13 NMR (CMR) 1990s, ‘twodimensional’ (2D) NMR, a daughter of the puter revolution Three waves of NMR UV to detect conjugated systems, the promotion of electrons from the ground state to the excited state IR to detect and identify the vibrations of molecules, especially the characteristic vibrations of the double and t
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