Chemical and Materials Engineering | Article | Published 2004
It should be noted that one of the fragmentation pathways of [M]+ is formation of fragments of certain monomers with m/z 174 (dipterin), 188 (N-methyltryptamine), and 204 (bufotenine) [4, 5]. The molecular ions of these monomers then decompose along the fragmentation pathway of indole derivatives to produce ions with m/z 146, 131, 130, etc.