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[求助]
求助，懂核磁共振方面的知识的前辈们
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有哪位前辈是 了解核磁共振 方面的知识，帮我翻译一下下面的一小段文章，非专业的怎么翻译都不顺畅，谢谢，感激不尽 Nuclear magnetic resonance spectroscopy. High-resolution 3Jp. and 27A1-NMR experiments were performed on a 9.4T Bruker AM-400 spectrometer (Nuclear Magnetic Resonance Unit, University of Nancy I, Vand0euvre-l~s-Nancy, France) operating at 161.9 and 104.2 MHz, respectively, under nonsaturating conditions. The 31P-NMR spectra of intact mycelium and aqueous solutions were obtained by using a pulse width (45 ~ of 17 ~ts, 10 kHz spectral width, 16 Kbytes data storage array, and a recycle time of 0.82 s. The 27AI-NMR spectra of intact mycelium and aqueous solutionswere obtained by using a pulse width (90 ~ of 17 gs, 8 kHz spectral width, 8 K data storage array, and a recycle time of 64 ms (1 K acquisition data). The free induction decays (20000 pulses) were exponentially multiplied with a line broadening of 5-10 Hz prior to Fourier transformation. External 100mM A1C13 and 85% orthophosphoric acid were used as standards, and chemical shifts were referenced relative to these standards which were assigned a value of 0 ppm. Complexed AI observable by NMR was quantitated by comparison of the integrated peaks from the mycelium spectra with the integrated peaks from a 5-mM solution of A1C13-PolyP (n = 15). The average standard deviation for three replicate experiments was not greater than 15%. |
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