Shimada K, Nagashima E, Orii S, Nambara T. New derivatization method using ferrocene reagents for the determination of steroid glucuronides by high-performance liquid chromatography with electrochemical detection.
J Pharm Biomed Anal 1987;
5:361-8. [PMID:
16867505 DOI:
10.1016/0731-7085(87)80042-0]
[Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/1986] [Indexed: 10/18/2022]
Abstract
New derivatization methods using ferrocene reagents have been developed for the determination of steroid glucuronides by high-performance liquid chromatography with electrochemical detection. Condensation of glucuronides with 2-ferrocenylethylamine is effected in the presence of water-soluble carbodiimide and 1-hydroxybenzotriazole. The resulting amides show the satisfactory sensitivity at +0.45 V versus Ag/AgCl reference electrode, with a detection limit of 0.5 pmole. The present method is found to be applicable to the estimation of estrogen glucuronyltransferase activities and estrogen glucuronides in pregnancy urine.
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