Abstract
A micellar electrokinetic capillary chromatography method was developed for the separation and determination of aliphatic congeners of bis(amidinohydrazones) in standard solution. Eight bis(amidinohydrazones) could be determined in less than 15 min at an applied voltage of 22 kV, using 0.05 M sodium phosphate as buffer (pH 7.0) together with 1 mM N-cetyl- N, N, N-trimethylammonium bromide. Hydrostatic sample injection was employed. The method exhibited good repeatability and a linear range of 2.5–100 μg ml −1. A detection limit of 1 μg ml −1 was achieved. The method also allows the determination of bis(amidinohydrazones) in human serum samples.
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