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. Author manuscript; available in PMC: 2011 May 15.
Published in final edited form as: Anal Chem. 2010 May 15;82(10):4130–4139. doi: 10.1021/ac100242b

Table 1.

Precursor and Product Ions for Tandem Mass Spectrometry

Analyte (Precursor m/z)a Product m/z (MS2)b Product m/z (MS3)c
Mercaptopurine (281) 193, 263, 89 165
Captopril (346) 231, 249, 213, 329 213, 145, 72
Penicillamine (278) 89, 260, 217 243, 189, 215, 145
Acetylcysteine (292) 275, 187, 232, 163, 146, 250 146, 257, 233, 198
Cysteamine (206) 89, 72, 188 171, 117, 72
VICATSH (257) 240 198, 113
a

including the acetamidyl-butylamine mass tag transferred from the VICATSH capture reagent

b

CID product ions (MS2) are listed in order of descending abundance. The ion isolated for MS3 analysis is in bold type.

c

CID product ions (MS3) are listed in order of descending abundance.