利用13C探头测27Al核磁共振谱

27Al Nuclear Magnetic Resonance Spectrum Determined by 13C-probe

中文关键词:  ¹³C探头  ²⁷Al  核磁共振谱

英文关键词:¹³C-probe  ²⁷Al  Nuclear magnetic resonance

中文摘要:

      对于80MHz的核磁共振仪,¹³C与²⁷Al的共振频率差为0.738MHz.由于¹³C核磁共振谱测定时需要较宽的频带,选择合适的参数,用¹³C10mm单探头或¹³C-¹H5mm双探头都可以测得²⁷Al核磁共振谱.当[Al³⁺]=0.1mol/L时,对于¹³C10mm探头灵敏度为42,线宽4.8Hz;对¹³C-¹H5mm双探头,灵敏度为24.8,线宽为3.2Hz.

英文摘要:

      Resonance difference between ¹³C and ²⁷Al is 0.738 MHz on AC-80 nuclear magnetic resonance spectrometer, Since wide frequence band is required for the determination of ¹³C nuclear magnetic resonance spectrum, the determination of ²⁷Al nuclear magnetic resonance is possible with 10mm ¹³C probe or 5mm¹³C-¹H double prode if proper parameters are used.When [Al³⁺]=0.1mol/L, the sensitivity is 42 and the line width is 4.8Hz if 10mm ¹³C probe is used, the sensitivity is 24.8 and the line width is 3.2Hz if 5mm ¹³C-¹H double probe is used.