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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

 

 

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