Ethinyl Estradiol為避孕藥常用成分之一,且其含量極微,並需長期服用。故每顆含量分配均句與否和藥效或副作用之產生有著切關係。衛生署已於七十三年九月三日公告,將Ethingl Estradiol成分列為必須實施含量均一度試驗之藥品本局依此公告,遂於七十三年十二月,展開此項調查工作。首先將檢品以Methanol溶解,依各處方含量分別稀釋,過濾成30r/ml、35r/m、40r/ml或50r/ml等濃度。再將USP Ethinyl Estradiol標準品以Methanol溶解,稀釋成與檢品溶液相同之濃度。將檢品與標準品溶液分別注入高效液相層析(H.P.L.C)儀中,採用e-Bondapack Cis(3.9mmI.DX30cm)及E-Bondapack Phenyl(3.9mmI.DX30cm)兩種層析管柱,移動相採用甲醇:水(7:3)及乙睛:水(4:6)兩種。於波長280nm偵測。
This report determined the content uniformity of the active ingredient Ethinyl estradiol of market-purchased contraceptives by a high performance liquid chromatographic method. Twenty-one samples bought from drugstores in the Taiwan area were analyzed and results showed that they met all of the requirements for content uniformity on USP XX. |