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Authors: Prasad BB, Srivastava S, Tiwari K, Sharma PS
Article Title: A new zwitterionic imprinted polymer sensor using ethylenediamine tetraacetic acid and chloranil precursors for the trace analysis of l-histidine.
Publication date: 2009
Journal: Materials Science and Engineering: C
Volume: 29
Issue: (6)
Page numbers: 1781-1789.
DOI: 10.1016/j.msec.2009.02.001
Alternative URL: http://www.sciencedirect.com/science/article/B6TXG-4VKP3W7-1/2/0e33c889475dda53a97b65446c833311
Abstract: A new zwitterionic ([`]gemini' like) l-histidine imprinted polymer, based on poly (ethylenediamine tetraacetic acid-co-chloranil), was synthesized for the modification of hanging mercury drop electrode. The imprinted polymeric film at the electrode surface facilitated l-histidine to be reduced electrochemically, as a consequence of the catalytic action of charge-transfer (chloranil-l-histidine complexation) reaction, to respond the corresponding differential pulse, cathodic stripping voltammetric signal without any cross-reactivity with interferents. The limit of detection (3σ) was found to be 0.128áng mL-á1 (RSD 0.2%) and results were found to be precise and accurate, without any false-positive contributions from human blood serum samples
Template and target information: l-histidine, l-his
Author keywords: L-Histidine, molecularly imprinted polymer, Charge-transfer complexations, differential pulse, Cathodic stripping voltammetry
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