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Electrophoresis 2005, 26(23), 4465-4467

Nonaqueous capillary electrophoretic assays of p-phenylene-bis-4,4′-(1-aryl-2,6-diphenylpyridinium) molecular wires

A nonaqueous CE system for separation and detection of novel electron-dopable molecular wires based on p-phenylene-bis-4,4'-(1-aryl-2,6-diphenylpyridinium) oligomers is described. The method is based on the coupling of CE separation in pure organic solvent, DMF with 50 mM acetic acid, and UV detection at 338 nm. The system offers a rapid measurement in less than 20 min for two priority nanowires and their impurities. Calibration data confirmed linear response for all compounds of interest in the concentration range 0.1-1.0mg/mL. A highly stable response was observed for repetitive injections (RSD

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