DOUBLE ISOTOPE DERIVATIVE ASSAY OF ESTRADIOL-17β AND ESTRIOL: PRELIMINARY STUDY ON PIPSYLATION OF ESTROGEN AND ACETYLATION OF PIPSYLATED ESTROGEN
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概要
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A method based on double isotope derivative principle and with sensitivity of about 0.005μg pure steroid was developed for determination of estradiol-17β and estriol. This method includes esterification of estradiol-17βor estriol with p-iodobenzenesulfonyl chloride (pipsyl chloride), separation of ester by thin layer chromatography, acetylation of ester with <SUP>3</SUP>H-labeled acetic anhydride, addition of known amount of pipsylated estrogen acetate-<SUP>14</SUP>C, purification of doubly esterified estrogen by 3 different systems of thin layer chromatography, and counting of <SUP>3</SUP>H and <SUP>14</SUP>C. The data on specificity of pipsylation, mobility of pipsylated estrogen acetate in thin layer chromatography, ratio of acetic anhydride to pyridine in acetylation of pipsylated estrogen, and recovery experiment are recorded.
- 社団法人 日本内分泌学会の論文
著者
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Inaba Minoru
Department Of Energy And Hydrocarbon Chemistry Graduate School Of Engineering Kyoto University
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Nakao Takeshi
Department Of Electrical And Information Systems Osaka Prefecture University
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KAMATA Kunie
Department of Pharmacology, Kyorin University School of Medicine
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