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本文报道,油针剂中含有大量4-烯-3-甾酮时,2.5～5毫克/毫升雌激素(雌酮和雌二醇的酯)的示差分光光度测定法。本法基于在碱性介质中样品的甲醇提取物的紫外光谱的向红性移位而设计的。由于同时被提出的
This paper reports the differential spectrophotometric method of 2.5 ~ 5 mg / ml estrogen (estrone and estradiol ester) containing large amounts of 4-en-3-sterosterone in an injection. This method is based on the red shift of the UV spectrum of the methanol extract of a sample in an alkaline medium. Because at the same time was proposed