Ions of interest, % Analyte m/z Full scan
FMSIS Clenbuterol 335 1.3 13 Norandrosterone 405 39 57 5[beta]-Androst-1-ene- 358 3 8 17[alpha]-methyl-3[alpha], 17[beta]-diol 5[alpha]-Androst-17[alpha]- 435 27 37 methyl-3[beta],17[beta]-diol 3'-Hydroxystanozolol 545 4 32 AGC time, [micro]s Analyte Full scan FM-SIS Improvement in S/N, % Clenbuterol 54 1310 210 Norandrosterone 148 2720 84 5[beta]-Androst-1-ene- 239 10 200 300 17[alpha]-methyl-3[alpha], 17[beta]-diol 5[alpha]-Androst-17[alpha]- 167 3830 142 methyl-3[beta],17[beta]-diol 3'-Hydroxystanozolol 1390 25 000 677