P    #regions in PPM
# 2016-01-21 20:51:52 +0800  nmr@EP-10013327
# low field   high field   mi   maxi
  191.089772975185  107.09426837070808  1.038  15.000  # for region 1
  90.52848829593624  67.42972452970508  2.179  14.630  # for region 2
  59.49681576150449  29.631747457690473  2.646  8.794  # for region 3
  27.298538996455  13.065967382918632  2.931  9.754  # for region 4
