Abstract

Biotin labelled with a cymantrene moiety (cyclopentadienyl manganese tricarbonyl complex) is described for the first time. Because this metallo-biotin retains full recognition for the specific glycoprotein avidin (or streptavidin), the labelled streptavidin-biotin system is proposed for use in a solid-phase competition-type metalloimmunoassay in which bovine serum albumin (BSA) is used as a model of applications. Atomic absorption spectrometry is utilized for the detection of the cymantrene-labelled biotin.

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