Dr. Petritis received his MSc and PhD in Analytical Chemistry from the University of Orleans, France. During his graduate studies, he was the first to demonstrate that underivatized amino acids can be analyzed by liquid chromatography electrospray mass spectrometry and applied those methods in newborn screening. In 2002, he joined Pacific Northwest National Laboratory, in Richland, WA, as a post-doc and later as a senior staff scientist where he worked in the field of mass spectrometry based proteomics. In 2009, he was hired as an associate professor and laboratory head at the Translational Genomics Research Institute in Phoenix, AZ to work on biomarker development. In 2014, he joined the Arizona office of newborn screening and Phoenix Children’s Hospital as a principal investigator where he led several federal public health and research grants before joining CDC in June 2017. He has (co)authored about 200 publications, communications and patents in the field of bioanalysis, proteomics, biomarker development, newborn screening, automation and bioinformatics.