S. Gorog et al., ANALYSIS OF STEROIDS .50. DERIVATIZATION OF KETOSTEROIDS FOR THEIR SEPARATION AND DETERMINATION BY CAPILLARY ELECTROPHORESIS, Journal of pharmaceutical and biomedical analysis, 14(8-10), 1996, pp. 1115-1124
4-Ene-3-ketosteroids and 17-ketosteroids were quantitatively transform
ed into the corresponding hydrazones using Girard P and T reagents, re
spectively. The positively charged derivatives were separated by capil
lary electrophoresis. The spectrophotometric characteristics of the de
rivatives permitted their sensitive detection in the 230-280 nm range.
The steroids investigated included nortestosterone and its phenylprop
ionate, norethisterone and its oenanthate, d,l-norgestrel, dehydroepia
ndrosterone, androstenedione and ethisterone.