Bethanechol chloride and HPTA (2-hydroxy-propyl-trimethyl ammonium chloride) in the presence of sodium and calcium (Metrosep C 4 - 150/4.0)

Determination of Bethanechol Chloride and HPTA (2-hydroxy-propyl-trimethyl ammonium chloride) besides sodium and calcium using cation chromatography with direct conductivity detection.