Low nM Detection Limits at Porous 1-3 nm Thick Membrane-Coated Nanostructured Microdisk Electrodes

Autor:	Abraham Boateng, Anna Brajter-Toth, Florian Irague
Rok vydání:	2013
Předmět:	Detection limit Mass transport Nanostructure Materials science Analytical chemistry Polypyrrole Analytical Chemistry chemistry.chemical_compound Membrane chemistry Chemical engineering Electrode Electrochemistry Coated electrodes Porosity
Zdroj:	Electroanalysis. 25:345-355
ISSN:	1040-0397
Popis:	Low (15 nM) limits of detection (LOD) of dopamine were obtained at porous 1–3 nm-thick overoxidized polypyrrole (OPPY) membrane-coated microdisk carbon fiber electrodes of small size (r=3.5 µm). The excellent mass transport through the porous OPPY membrane (efficiency as good as solution transport) contributes to the low LOD, together with dopamine preconcentration in the membrane. Structural characterization of the membrane coated electrodes confirms the contribution of membrane nanostructure to the high sensitivity and the low LOD.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c1d5b86d94ff7a802050a2dccefb3dbe https://doi.org/10.1002/elan.201200489 Zobrazit plný text záznamu Plný text ve formátu PDF