cutoff : intensity cutoff (don't add to the query, mz with intensity below defined cutoff).
max: maximum number of records returned by the MASSBANK server foreach pcgroup of masses (by default max is set to 10).
score_threshold: apply a filter on MASSBANK scores (by default threshold is set to 0.5).
mode : Ionization search mode: Positive or Negative ou Both
Instrument: filter applied on spectra depending of the instrument source. (All is the default value) - - GCMS technologies are available in W4M GCMS tools section.