Guidelines# Guidelines Specifying ion m/z Selected Ion M/Z Selected Precursor M/Z Experimental Precursor Monoisotopic M/Z Isolation Window Target M/Z Theoretical Monoisotopic M/Z Theoretical Average M/Z Specifying Ion Mass Molecular Mass Adduct Ion Mass Adduct Ion Monoisotoptic Mass Adduct Ion Average Mass Theoretical Neutral Mass Theoretical Neutral Monoisotopic Mass Theoretical Neutral Average Mass