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This article presents information on a conference Jornadas de Análisis Instrumental (JAI), held in November 2002, at Barcelona, Spain. The meeting of JAI describes a very interesting approach to the extraction, purification and characterization of synthetic crudes of peptide hormones of therapeutical interest. The rigorous and useful methodology proposed is characteristic of analytical proteomics and it is being imported to trace element speciation investigations. It could be said that nowadays the JAI in Spain is playing a role which is reminiscent of that played in the U.S. by the well known Pittsburgh Conference: it is a great occasion for manufacturers to show the latest instruments and methodologies of modern analytical science in the instrument exhibition to scientists and users attending the JAI scientific meeting.