this very sensitive method , combined with high selectivity and a fast and inexpensive serum clean-up procedure , has allowed us to document the prolonged terminal plasma half-life of mitoxantrone ( levels of 2-5 ng/ml of plasma can still be detected six days after an intravenous infusion of 15 mg/m2 over 30 min ) .
C0229671
serum
C0032105
plasma