Miguel de la Guardia (1953, Tetuán) has a degree in Chemistry (1976) and a PhD in Chemistry (1979) from the University of Valencia. He has published to date more than 750 papers in the area of Analytical Chemistry, of which 338 are referenced by the ISI Web of Science, and has received 30,000 citations. His H index is 82 and he feels responsible, or co-responsible, for 33 supervised doctoral theses. He began his work in the area of Atomic Spectrometry and from there he moved on to Molecular Spectrometry and Chromatography. His best contributions were in the field of sample preparation (microwave-assisted digestion and extraction ), non-chromatographic speciation and automation (FIA and switching). He is particularly proud to have developed the technique of quantitative analysis by IR in vapour phase and to propose in 1995 the concept of environmentally sustainable methods of analysis, incorporating Mechanized methods A step of detoxification or online recycling of waste. He has lectured as a guest at numerous Spanish universities, as well as in France, Germany, Italy, Brazil, Venezuela, Morocco, Turkey, China, Norway, United Kingdom, USA, Colombia, Egypt, Uruguay, Argentina, Switzerland and Belgium.