Selective colorimetric determination of ethynodiol diacetate in oral estrogen-progestin combination.
D000965:Antimony; D003124:Colorimetry; D004967:Estrogens / Q000032:analysis; D005040:Ethynodiol Diacetate / Q000032:analysis*; D008722:Methods; D011372:Progestins / Q000032:analysis; D013053:Spectrophotometry; D013997:Time Factors
D004967:Estrogens; D011372:Progestins; D005040:Ethynodiol Diacetate; D000965:Antimony