Cu@SnS/SnO2 nanoparticles as novel sorbent for dispersive micro solid phase extraction of atorvastatin in human plasma and urine samples by high-performance liquid chromatography with UV detection: Application of central composite design (CCD)
Keywords: Atorvastatin; Central composite design; Ultrasound assisted extraction; HPLC-UV; Human plasma samples; Plackett-Burman design;