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Updated: Mar 22, 2026

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Published on: February 13, 2017
Determination of Pb(II) by sequential injection/stripping analysis at all-plastic electrochemical fluidic cells with
Christos Kokkinos1, Anastasios Economou1, Nicholas G Goddard2
1Laboratory of Analytical Chemistry, Department of Chemistry, University of Athens, Athens 157 71, Greece.
Abstract:
This work reports the development of a sequential injection/stripping analysis method for the determination of trace Pb(II) at injection-moulded electrochemical fluidic cells. Conducting carbon fibre-loaded polystyrene electrodes were integrated within the plastic cells. The flow-through cells were incorporated into a home-made sequential injection analysis (SIA) manifold. Different experimental parameters for the detection of Pb(II) were investigated including the type and concentration of the supporting electrolyte, the conditions of the stripping step, the volume of the sample, the flow rate and the accumulation potential. The LOD for Pb(II) was 0.5μgL(-1), the within-cell % relative standard deviation (n=8) was 3.1% and the between-cell % relative standard deviation (n=5) was 8.9% for 25μgL(-1) Pb(II). The cells were applied to the determination of Pb(II) in tapwater and a phosphate fertilizer sample.
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