She worked as an Associate Professor of Analytical Chemistry in Food Science Technology. Dr. Romero received her PhD in 1989 from Autonoma University of Madrid. Her research work resulted in producing one patent; design of several device "Work in Solution" Screen Printed Electrodes and Thermostat Cell. Dr. Romero's group developed new electroanalytical methods which are applied to study surfactant aggregate and macromolecular effects on chemical reactivity, to study dediazoniation mechanisms in the presence of different substrates (natural antioxidants). Her research work applies analytical chemistry methodology, typically electroanalytical techniques, and biochemistry approaches to problems in food, clinical, and environmental analysis, using biosensors and chemical sensors devices.