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Research summary My PhD project focuses on the speciation of iron in coastal and sea waters using Cathodic Stripping Voltammetry (CSV with ligand competition). Me and my supervisor Van den berg we have improved the speciation method by using catalysis to enhance and stabilise the sensitivity. The improved method involves adding an Fe(lll) complexing ligand, salicylaldoxime, which competitively equilibrates with inorganic and organic Fe(llI) species in ambient seawater. The Fe(lll)-salicylaldoxime complex then is measured by adsorptive cathodic stripping voltammetry (ACSV). This method uses salicylaldoxime (SA) in the presence of oxygen which gives the catalytic effect. Biography I obtained my B.Sc. (Second Class Honours) and M.Sc. (First Class Honours) in Environmental Sciences (Water Analysis) from Jordan University of Science and Technology and Yarmouk University respectively. Then I worked as a teaching assistant in Jordan University (Jan 2010- sep 2011). In October 2011, I started my PhD in Ocean Sciences Department (electrochemistry group) at the University of Liverpool under the supervision of Prof C.M.G Van den berg. Publications: Abu Hilal, A. and Abualhaija, M (2010). Nutrients in water and sediments of king talal dam-Jordan. Jordan Journal of Biological Sciences, 3(3): 87 – 100. Abualhaija, M. and C. M. G. Van Den Berg (2014). "Iron speciation in seawater by catalytic stripping voltammetry using salicylaldoxime." Marine Chemistry , in revision.