TY - RPRT TI - Capillary electrokinetic chromatography with polyethyleneimine as replaceable cationic pseudostationary phase. Influence of methanol and acetonitrile on separation selectivity. AU - B Maichel AU - B Potocek AU - B Gas AU - E Kenndler PY - 1999 DO - 10.1016/s0021-9673(99)00587-7 UR - https://pubmed.ncbi.nlm.nih.gov/10486718/ ID - 10486718 ER -