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. 2009 Aug 26;395(4):1075–1087. doi: 10.1007/s00216-009-3037-9

Table 1.

Steroid esters; specific ions monitored for LC-ESI(+)-MS/MS

Compound MRM transition 1 (m/z) Collision energy MRM transition 1 (eV) MRM transition 2 (m/z) Collision energy MRM transition 2 Rt in min
Estradiol benzoate 377 > 105 40 377 > 77 45 3.64
Estradiol benzoate-d3 380 > 105 20 3.63
Testosterone cypionate 413 > 97 25 413 > 107 25 5.46
Testosterone cypionate-d3 416 > 97 25 5.45
Testosterone decanoate 443 > 97 25 443 > 109 30 6.53
Testosterone decanoate-d3 446 > 97 25 6.53