The separation and identification of the ephedrines(cathine,norephe-drine,ephedrine,pseudoephedrine,methylephedrine and ethylephedrine)and theirderivatives obta
A method is developed for the simultaneous determination ofephedrine,pseudoephedrine,norephedrine,norpseudoephedrine andmethylephedrine in urine on a capillary