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Lack of ion suppression. Ion suppression was tested following the procedure described by [12]. Imatinib was infused post-column using a syringe pump at a delivery rate of 20 µL/ min and a concentration of 10 µg/mL. Influence of different matrices on imatinib signal is presented in whole blood (dark blue), methanol (light blue) and cell media (gray line). Blank matrix was injected into the column-switching system.
