核磁共振原理簡介 | NMR 缺點
bꤺֺϦ@лϥΤwGQX~vAҴѪsjhHƾǦ첾(chemical shift)Φ۱ۡЦ۱۶X(spin-spincoupling)ADƦXcyŲwΡAثewgWʳhsֺϦ@лAƳhsAҦpiGֺϦ@ЩTΦh߽Ĺӱo짽йϡAΪ̦]sݭnӧܯ߽ħǦCAoǷsAU譱sѧhBԲӪơAMӹ߽ĮֺϦ@zΡA֦w(nuclear relaxation)D۷nCꤺ@HƾǦ첾Φ۱۶XxAӲ֦wzAѡA]惡ʲLСAHһ֦w[C ² ֺϦ@(Nuclear MagneticResonanceSpectrometer)WM~u(Ultraviolet,UV)B~u(Infrared, IR)AOФRn@Ab~uЩM~uСAuníw(source)AgLoAo˫~lilAYlСCOֺϦ@hݦbϳ(Zeeman field)@ΤUA㦳ϯx֤~ಣͯඥ(energy splitting)AtbLuqϪid(radiofrequency,l03~108 HzAB֦baϯඥ2x103Hz)APWv(ui)~(elec...
bꤺֺϦ@лϥΤwGQX~vAҴѪsjhHƾǦ첾(chemical shift)Φ۱ۡЦ۱۶X(spin-spin coupling)ADƦXcyŲwΡAثewgWʳhsֺϦ@лAƳhsAҦpiGֺϦ@ЩTΦh߽Ĺӱo짽йϡAΪ̦]sݭnӧܯ߽ħǦCAoǷsAU譱sѧhBԲӪơAMӹ߽ĮֺϦ@zΡA֦w(nuclear relaxation)D۷nCꤺ@HƾǦ첾Φ۱۶XxAӲ֦wzAѡA]惡ʲLСAHһ֦w[C
²
ֺϦ@(Nuclear Magnetic Resonance Spectrometer)WM~u(Ultraviolet, UV)B~u(Infrared, IR)AOФRn@Ab~uЩM~uСAuníw(source)AgLoAo˫~lilAYlСCOֺϦ@hݦbϳ(Zeeman field) @ΤUA㦳ϯx֤~ಣͯඥ(energy splitting)AtbLuqϪid (radio frequency,l03~108 HzAB֦baϯඥ2x103Hz)APWv(ui)~(electronic transition, 1014 Hz) M~u(vibrational transition, l012 Hz) UCTIt:
1. uֺϦ@ЬOϥεLuqϪio;(radio frequency generator) ҲͤLuqϪiϮֿEoALuqϪio;D`pWve( Du<<нue)AbTwWvAunpqYiͳhl(Photons)AlhhEoӾɭPoE(stimulated transition)vj۵ovAOb~ά~uСAϥΤ@(source)AWejнue( Du&...