| 摘要 |
<p>Method and apparatus for the detection improvement and spectral editing in NMR spectroscopy by polarization transfer in which the high spin population difference of two or more energy levels of a particular nuclear spin system (A) is transferred to the energy levels of an other nuclear spin system (X) with lower spin population difference,
whereby
all HF pulses to be irradiated are irradiated sequentially, i.e. with defined time interval to each other, so that at no time of the sequence said (frequency -) different HF pulses are irradiated concurrently respectively in an overlapping manner, whereby the sequential succession of said HF pulses realizes a polarization transfer between said two spin systems of atomic nuclei involved (A), (X), wherein the sequence of said HF pulses in each domain of the respective nuclei is completely symmetric.</p> |
