. Author manuscript; available in PMC: 2011 Apr 26.

Published in final edited form as: Anal Bioanal Chem. 2010 May 1;397(5):1831–1839. doi: 10.1007/s00216-010-3705-9

Table 1.

MS/MS parameters and MRM transitions in both positive and negative modes

Compounds detected (1.0-11 min)	MRM transitions	Fragmentor (V)	CE (V)
Positive ion mode
3,3′-T2 or 3,5-T2	525.6-479.6 (Q)^a 525.6-381.8 (C)^b	120 120	20 20
T3 or rT3	651.8-605.9 (Q) 651.8-507.9 (C rT₃) 651.8-478.7 (C T₃)	120 120 120	20 20 35
13C₆-T4 T4	783.8-737.8 (Q) 777.7-731.5 (Q) 777.7-633.7 (C)	160 160 160	25 25 35
Negative ion mode
3,3′-T2 or 3,5-T2	523.9-506.5 (Q) 523.9-126.8 (C)	120 120	15 25
T3 or rT3 rT3	649.9-632.9 (Q T₃) 649.9-604.8 (Q rT₃) 649.9-126.8 (C)	120 160 160	15 35 35
¹³C₆-T4 T4	782.0-611.0 (Q) 775.9-604.9 (Q) 775.9-574.8 (C)	160 160 160	20 20 30

Q quantitation ions

C confirmation ions