| 摘要 |
PURPOSE:To facilitate the evaluation of attribution of components of a spectrum in a mixture sample by plotting points to be determined by the intensity of corresponding peaks with an X-Y coordinate set based on a nuclear magnetic resonance spectrum. CONSTITUTION:With a computer 11, a 90 deg. pulse and a 180 deg. pulse irradiate a sample 2 through a switching circuit 8 and a magnetic field gradient is applied in a pulse to the sample 2 from a power source 12 and furthermore, the switching circuit 8 is turned to the position of an amplifier 9 at the timing of tau after the pulse to memorize a spin echo signal. This measurement is performed by varying tau, the intensity of the magnetic field gradient or the application time thereof to memorize another spin echo signal. The Fourier transform of these two spin echo signals produces a spectrum signal while it is read out and sent to a recorder 13 one as X signal and the other as Y signal. Checking the movement of a pen of the recorder 13 on straight lines l1 and l2, it is determined that the peaks A and B belong to the same type of molecules and the peak C belongs to different types of molecules. |
