However you are free to move the spectrum cursor using the techniques described below. The buttons Zero Order and First Order select PHC0 and PHC1 parameters, respectively, for interactive phasing. First a zero order correction is performed, until the reference peak is in absorption mode , afterwards the first order mode is selected and pase correction performed until the whole spectrum is in absorption mode . Three different correction modes for baseline correction have been implemented. You can select one by clicking in appropriate radio button.
All names are self-explanatory.
The same is valid for the nine baseline functions and the corrected region. Pts. and continue entering baseline points by pressing the right mouse button in the spectrum window until you are satisfied. Spectrum Reference value. This can be obtained from another spectrum of this nucleus, acquired during the same session on the same spectrometer. From the Peak Picking Options menu box, you can select the peak sign and the peak label unit.