comparison zone

This is the zone that should be considered to evaluate the similarity. This zone is based on the calculate experimental monoisotopic mass for the considered molecular formula. Depending the elements a good value is

• • low : -0.5
  • high : 4.5
  • It is better to use half Dalton in order to prevent any “border” effect
  • The system takes into account the charge. So for a doubly charged molecule, the range will be divided by 2
  • Example for a compound containing 3 Ru: the zone should be set to -13.5-7.5