subform: Subtract one chemical formula from another
Description
Subtract one chemical formula from another
Usage
subform(formula1,formula2)
Arguments
formula1
Chemical formula to subtract from
formula2
Chemical formula to subtract
Value
Details
Useful for adduct calculations, check adducts.
Chemical formulas must conform to what is described in check_chemform.
Prior check if formula2 is contained in formula2 at all? See check_ded.