The resulting mixture was used for injection to the LC/MS/MS instrument. AZM (Sigma–Aldrich) standard solution was prepared in methanol at 1 mg/mL and working standards (0.01–100 lg/mL) were kept at 30 C.
The resulting mixture was used for injection tothe LC/MS/MS instrument. AZM (Sigma–Aldrich) standard solution was preparedin methanol at 1 mg/mL and working standards (0.01–100 lg/mL) were kept at30 C.