A simple strategy for preparation of sensor arrays: molecularly structured monolayers as recognition elementsElectronic supplementary information (ESI) available: experimental details and electrochemical measuring conditions. See http://www.rsc.org/suppdata/cc/b2/b210554c/

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Abstract
The spreader-bar approach is a simple method for producing a huge variety of receptors with different selectivities. A sensor-array consisting of five such receptors is presented. A pattern recognition provides selective detection of different purines and pyrimidines.
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