Impurity transport is an important issue for the development of ITER scenarios. Indeed, impurity accumulation can lead to severe radiated power loss (from high Z impurities not fully ionised in the core), fuel dilution (for both low and high Z impurities) and can affect plasma stability. All of these issues need to be dealt with to achieve steady state operation. It is therefore important to gather knowledge on the Z-dependence of impurity transport in the ITER relevant scenarios. A new method to study the Z-dependence of impurity transport has been developed and is presented in this paper. This method allowed us to characterise impurity transport in the Hybrid scenario at JET.