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Electrochemical Sensor with Record Performance Characteristics
Author(s) -
Karyakin Arkady A.,
Puganova Elena A.,
Bolshakov Ivan A.,
Karyakina Elena E.
Publication year - 2007
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200700341
Subject(s) - prussian blue , electrochemical gas sensor , hydrogen peroxide , electrocatalyst , detection limit , electrochemistry , calibration , inert , limit (mathematics) , linear range , carbon fibers , nanotechnology , analytical chemistry (journal) , materials science , chemistry , computer science , physics , electrode , environmental chemistry , chromatography , organic chemistry , mathematics , algorithm , composite number , mathematical analysis , quantum mechanics
Nanoelectrode sensor arrays were formed by depositing nanostructures of the electrocatalyst Prussian Blue onto an inert carbon support. The sensor thus obtained showed a high sensitivity toward hydrogen peroxide, with a detection limit of 1×10 −9 mol L −1 (i.e., 0.03 ppb), and a broad linear calibration range, which extended over seven orders of magnitude (from 10 −9 to 10 −2 m L −1 H 2 O 2 , see graphic).