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Desenvolveu-se um método espectrofotométrico na região do visível para doseamento de 17beta-estradiol em gel e adesivo transdérmico, utilizando-se sulfanilamida diazotada como reagente. O azo-composto formado apresentou absorção máxima em 480 nm, sendo a reação linear na faixa de concentração de 10,0 a 28,0 µg/mL. Quando aplicado a amostras comerciais mostrou-se preciso e exato. A visible spectrophotometry method was developed for quantification of 17beta-estradiol in gel and in patch, tranformations by using diazotised sulfanilamide as the colorimetric reagent. The azo-compound formed showed a maximum absorption in 480 nm, and the reaction was linear in a concentration range from 10,0 to 28,0 µg/mL. When applied to dosage formulations it showed to be precise and accurate

Determinação do 17beta-estradiol nas formas farmacêuticas gel e adesivo transdérmico