Table I.

Tabulated FAB spectra of methylated IAA metabolites

Compound[MH]+Other Ions
Metabolite 1354/360 (5)192/198 (Bp), 146/152 (33), 134/140 (31)
Metabolite 2206/212 (Bp)174/180 (10), 146/152 (32)
Metabolite 3319/325 (55)162 (25), 130/136 (Bp)
Metabolite 4333/339 (81)205 (35), 176 (23), 130/136 (Bp), 116 (9)
Metabolite 5206/212 (Bp)174/180 (5), 146/152 (30)
Metabolite 6335/341 (Bp)174/180 (14), 162 (30), 146/152 (37), 130/136 (25), 130/132 (21), 102 (21)
Metabolite 7335/341 (Bp)174/180 (14), 162 (24), 146/152 (36), 130/136 (17), 130/132 (19), 102 (15)
Metabolite 8335/341 (Bp)204 (23), 174/180 (14), 162 (46), 146/152 (42), 102 (43)
Metabolite 9335/341 (Bp)204 (26), 174/180 (8), 162 (44), 146/152 (38), 102 (36)

The intensity of nonlabeled peaks are shown in parentheses, the intensity of the 13C6 label from the IAA feed is of approximately equal intensity as that of nonlabeled ions. Bp, Base peak with relative intensity 100%. All spectra also contain an adduct ion [M + glycerol + H]+ with an intensity of 2% to 10%; these are not tabulated.