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High‐Throughput Mercury Monitoring in Indoor Dust Microsamples by Bath Ultrasonic Extraction and Anodic Stripping Voltammetry on Gold Nanoparticles‐Modified Screen‐Printed Electrodes
Author(s) -
Bernalte E.,
Marín Sánchez C.,
Pinilla Gil E.
Publication year - 2013
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.201200341
Subject(s) - anodic stripping voltammetry , mercury (programming language) , materials science , colloidal gold , extraction (chemistry) , anode , electrode , detection limit , analytical chemistry (journal) , electrochemistry , ultrasonic sensor , nanoparticle , chemistry , environmental chemistry , nanotechnology , chromatography , computer science , acoustics , programming language , physics
A simple strategy based on the combination of a high‐throughput bath ultrasonic extraction with portable electrochemical determination was developed for fast Hg(II) monitoring in dust samples, with potential applicability to decentralized atmospheric pollution assessment. Square‐wave anodic stripping voltammetry (SWASV) on gold nanoparticles‐modified screen‐printed carbon electrodes (AuNPs‐SPCEs) coupled to the extraction procedure resulted in a convenient method for sensitive, reliable, and reproducible mercury detection. The proposed combination of techniques was evaluated with good agreement by using NIST Standard Reference Material 2583 Trace Elements in Indoor Dust. The method was successfully applied for Hg monitoring in complex and heterogeneous indoor dust samples collected at different indoor ambients. ICP‐MS was used to contrast the voltammetric measurements.