Sensitive determination of lead by differential pulse anodic stripping voltammetry on silver-based coordination complex modified electrodes
A silver-based coordination complex was synthesized from melamine (MA), terephthalic acid (TPA) and silver nitrate for the determination of Pb 2+ at the trace level by differential pulse anodic stripping voltammetry (DPASV). The complex was identified as [Ag 13 (MA) 10 (TPA) 5 ·10H 2 O] n and showed...
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Published in | Analytical methods Vol. 8; no. 8; pp. 1935 - 1941 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
01.01.2016
|
Subjects | |
Online Access | Get full text |
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Summary: | A silver-based coordination complex was synthesized from melamine (MA), terephthalic acid (TPA) and silver nitrate for the determination of Pb
2+
at the trace level by differential pulse anodic stripping voltammetry (DPASV). The complex was identified as [Ag
13
(MA)
10
(TPA)
5
·10H
2
O]
n
and showed a good adsorption capability for Pb
2+
. Under the optimal conditions, the electrochemical sensor exhibited a linear response over the concentration range from 1.0 × 10
−9
to 5.0 × 10
−7
mol L
−1
Pb(
ii
) (
R
2
= 0.997) with a detection limit of 8.0 × 10
−10
mol L
−1
Pb(
ii
) (S/N = 3). The method was successfully applied to real samples.
A silver-based coordination complex was synthesized from melamine (MA), terephthalic acid (TPA) and silver nitrate for the determination of Pb
2+
at the trace level by differential pulse anodic stripping voltammetry (DPASV). |
---|---|
Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1759-9660 1759-9679 |
DOI: | 10.1039/c5ay03148f |