Figure 2From: Speciation of arsenic trioxide metabolites in peripheral blood and bone marrow from an acute promyelocytic leukemia patientChromatogram of standard arsenic species. The separation was performed on CAPCELL PAC C18 MG II with 10 mM butane sulfonic sodium, 4 mM malonic acid, 4 mM tetramethylammonium hydroxide, and 0.5% methanol (pH 2.0). The signal peaks are as follows: As(V) (1), As(III) (2), MA(V) (3), DMA(V) (4), and AB (5).Back to article page