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Nonaqueous capillary electrophoretic assays of p‐ phenylene‐bis‐4,4'‐(1‐aryl‐2,6‐diphenylpyridinium) molecular wires
Author(s) -
Pumera Martin,
Jindřich Jindřich,
Valášek Michal,
Pecka Jaroslav
Publication year - 2005
Publication title -
electrophoresis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/elps.200500414
Subject(s) - capillary electrophoresis , calibration curve , aryl , detection limit , phenylene , impurity , solvent , chemistry , capillary action , analytical chemistry (journal) , acetic acid , materials science , chromatography , organic chemistry , polymer , alkyl , composite material
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 0.1–1.0 mg/mL. A highly stable response was observed for repetitive injections (RSD ≤ 2.8%, n = 10).