Determination of biapenem in a medicinal product by micellar electrokinetic chromatography with sweeping in an enhanced electric field

► MEKC with sweeping in an enhanced electric field enabled effective assay of biapenem. ► The proposed MEKC method is selective, linear, precise and accurate. ► The results obtained by HPLC and MEKC prove that the method is selective. ► It is possible to distinguish particular degradation products. ► The method can be applied as an alternative method for drug analysis control.