the technique of high-resolution molecular-ion monitoring during combined g.l.c.-mass spectrometry was used to determine oestrone , oestradiol-17beta and oestriol in concentrations above 1ng/g wet wt . of tissue , and dehydroepiandrosterone , testosterone , androsterone ( 3alpha-hydroxy-5alpha-androstan-17-one ) and 3beta-hydroxy-5alpha-androstan-17-one in concentrations exceeding 5ng/g , in extracts of five primary breast tumours .
C0014912
oestradiol-17beta
C1458155
of