Detection of Fish Hormones by Electrochemical Impedance Spectroscopy and Quartz Crystal Microbalance

By Pali, Madhavi; Garvey, James E.; Small, Brian; Suni, Ian I.
Published in Sensing and Bio-Sensing Research NULL 2017

Abstract

Abstract Detection of three fish hormones, cortisol, insulin-like growth factor 1 (IGF-1), and vitellogenin is reported using both electrochemical impedance spectroscopy (EIS) and quartz crystal microbalance (QCM). For cortisol, IGF-1, and vitellogenin, the {EIS} (QCM) detection limits are 7.9 (0.50) ?M, 3.0 (2.4) nM, and 43 (13) pM, respectively, in {PBS} buffer. Thus the two detection methods, {EIS} and QCM, have similar sensitivity, but {QCM} is 4

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