A portable cyclic voltammetry measurement system based on aptamer-based biosensor
JIANG Li-ying
HU Jie
CHEN Qing-hua
WANG Fen-fen
YUE Bao-lei
Abstract：Aiming at the problem of inconvenience to carry and difficulty with power in-field electrochemi-cal measurement,a portable cyclic voltammetry measurement system was designed based on aptamer-based biosensor developed by our laboratory.For overcoming the noise in the circuits effectively,a lock-in ampli-fier,potentiostat and program for phase sensitive detection were designed to extract weak signal.Experiment results showed that the system could implement cyclic voltammetry,which had higher SNR(signal noise ra-tio),the measurement precision of which could reach 1 μA.It had features of power saving,and simple era-tion,which could meet the requirement of in-field cyclic voltammetry measurement.
Keywords：aptamer-based biosensorcyclic voltammetry measurement systemlock-in amplifierpotentio-stat
Publication Date：2014-03-02
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 38-43 )