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Dipyridine‐Containing Macrocyclic Polyamine – Nafion‐Modified Screen‐Printed Carbon Electrode for Voltammetric Detection of Lead
Author(s) -
Bettazzi Francesca,
Giorgi Claudia,
Laschi Serena,
Palchetti Ilaria
Publication year - 2012
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201100581
Subject(s) - detection limit , nafion , anodic stripping voltammetry , stripping (fiber) , electrode , voltammetry , chemistry , polyamine , melamine , analytical chemistry (journal) , linear range , calibration curve , electrochemistry , materials science , chromatography , organic chemistry , biochemistry , composite material
In this paper, a screen‐printed, mercury‐free, Nafion modified carbon sensor incorporated with a dipyridine‐containing macrocyclic polyamine [5,8,11‐trimethyl‐2,5,8,11,14‐pentaaza [15]‐[15] (2,2′)[1,15]‐bipyridylophane (BipyMe 3 N 5 )] for voltammetric stripping detection of Pb(II) has been explored. The measurement procedure, consisting of an accumulation step at open circuit condition followed by a “medium exchange” square wave anodic stripping voltammetry (SWASV), was optimized. Calibration plot of Pb(II) was linear in a concentration range 0–200 µg/L, with a resulting limit of detection of 2 µg/L and a relative standard deviation of 14 %, for 120 s accumulation time.