Application of Mass Fragmentography to Assay Testosterone Undecanoate in Human Serum(1)

This paper deals with the necessary conditions——the mininum detectable quantity, the detectable linear range, the choice of fragmentary ions and the stability of derivatives for internal standards before the determination of Testosterone Undecanoate (T. U) in serum. The different conditions of mass spectra for multiple ion detection (MID) were established by direct injection and GC sampling. The both methods of sampling have got satisfactory results.