Application of predicted fragmentation pathways and fragment ion structures for detecting steroids and selective androgen receptor modulators in dietary supplements using liquid chromatography-quadrupole time-of-flight mass spectrometry.

The application to real samples for accurate screening indicated that the same fragmentation patterns and product ions as one or more SARM standards were detected and identified in the seized samples advertised as muscle building. Therefore, this study can contribute to ensuring the safety of public health through providing fundamental information about the risk of illegal adulteration.