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. 2023 Dec 27;9(1):607–617. doi: 10.1021/acsomega.3c06190

Table 2. SRM Transitions for Five Steroids and IS.

  SRM (quantifier) SRM (qualifier) collision energy (eV) quantifier/qualifier
A4 287.3 > 97.1 287.3 > 109.1 25/25
A4-d5 292.4 > 100.0   25
T 289.2 > 96.8 289.2 > 108.8 25/25
T-d3 292.3 > 97.1   22
17-OHP 331.1 > 97.0 331.1 > 109.0 28/28
17-OHP-d8 339.1 > 100.0   28
DHT 291.2 > 158.9 291.2 > 255.1 22/14
DHT-d3 294.3 > 258.2   15
P4 315.2 > 97.1 315.2 > 109.1 25/25
P4-d8 324.2 > 100.1   25