Ndlovu, Thabile and Arotiba, Omotayo A and Sampath, Srinivasan and Krause, Rui W and Mamba, Bhekie B (2011) Electrochemical detection and removal of lead in water using poly(propylene imine) modified re-compressed exfoliated graphite electrodes. In: Journal of Applied Electrochemistry, 41 (12). pp. 1389-1396.
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Modification of exfoliated graphite (EG) electrode with generation 2 poly(propylene imine) dendrimer by electrodeposition resulted in an electrochemical sensor which was used to detect lead ions in water to a limit of 1 ppb and a linear response between 2.5 and 40 ppb using square wave anodic stripping voltammetry (SW-ASV). Pb(II) was also removed from spiked water sample using a 40-mm diameter unmodified EG electrode with an applied potential of -1,000 mV for 180 min. A removal efficiency of 99% was calculated from a 150 mL sample. The results obtained in both cases using SW-ASV, correlated with atomic absorption spectroscopy.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Springer.|
|Keywords:||Exfoliated graphite;Lead;Poly(propylene imine) dendrimer; Square wave anodic stripping voltammetry;Water|
|Department/Centre:||Division of Chemical Sciences > Inorganic & Physical Chemistry|
|Date Deposited:||10 Jan 2012 12:27|
|Last Modified:||10 Jan 2012 12:27|
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