Label-free impedimetric immunosensor for sensitive detection of ochratoxin A.

Abstract

A novel label-free electrochemical impedimetric immunosensor for sensitive detection of ochratoxin A (OTA) was reported. A two-step reaction protocol was elaborated to modify the gold electrode. The electrode was first derivatized by electrochemical reduction of in situ generated 4-carboxyphenyl diazonium salt (4-CPDS) in acidic aqueous solution yielded… (More)
DOI: 10.1016/j.bios.2008.09.021

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