Volver a Blog Alejandro Barranco Ibarbia May 14, 2022 PhD in Chemistry. Since 2004 his research work at AZTI has been focused on the development of biosensors and chemical sensors for food safety and quality, participating in several European and National projects. He has more than 30 peer-review publications dealing with the optimization of new methods for the determination of contaminants and natural products in food and boasts a solid expertise in biosensors, chromatography, analysis of residues in food and methods validation.