Comparison of various reversed-phase columns for the simultaneous determination of ephedrines in urine by high-performance liquid chromatography

Imaz, C.; Navajas, R.; Carreras, D.; Rodríguez, C.; Rodríguez, A.F.

Journal of Chromatography A 870(1-2): 23-28

2000

https://eurekamag.com/research/010/364/010364243.php