A sensitive procedure, based on sulfuric acid-induced fluorescence, has been developed for
the analysis of norgestrel (dl-13-ethyl-17α-ethinyl-17-hydroxygon-4-en-3-one) in tablets of …

A relatively sensitive assay for the contraceptive steroid norgestrel, in pharmaceutical
preparations, is described. The procedure involves the blue tetrazolium reaction. Optimum …

Publisher Summary This chapter discusses the norgestrel. Norgestrel is designated as d1-
13-ethyl-l7-ethynyl–17–hydroxygen–4–en-3–one and is listed in the subject indices of …

the most potent progestational steroids; it is a totally synthetic compound and the prepa-
ration normally used is a mixture of the LandD forms, although only the latter is biologic-ally …

For determination of the relative bioavailability of methyltestosterone in man, a
spectrophotofluorometric procedure was developed, based on fluorescence induced by …

A new method for analyzing fluoxymesterone by gas chromatography utilizes the large
difference in polarity between it and other ketosteroids. Its retention time is selectively shifted …

Administration of norgestrel I (racemic 13β-ethyl-17α-ethynyl-17β-hydroxygon-4-en-3-one)
to humans has been shown by mass spectrometry and other analytical techniques to yield a …

High-performance liquid chromatographic (HPLC) and gas-liquid chromatographic (GLC)
separations of some steroidal α, β-unsaturated ketoximes, intermediates in the synthesis of …

A colorimetric method has been developed for assaying 17α-ethynylestradiol-3-methyl ether
in tablets. The method is based on the formation of a colored complex with phenol–sulfuric …

Published methods for the quantitative estimation (colorimetry, UV spectrophotometry, and
fluorimetry) of the active components of oral contraceptives do not meet specificity …