Imma Ferrer, PHD, has twelve years of hands-on experience in ion trap, triple quadrupole, and time-of-flight mass spectrometry of small molecules as applied to environmental and pharmaceutical chemistry. She is currently a Professional Research Associate of the Center for Environmental Mass Spectrometry at the University of Colorado in Boulder, Colorado. She is the author of the book Liquid Chromatography/Mass Spectrometry, MS/MS and Time-of-Flight MS: Analysis of Emerging Contaminants. She is also the author of numerous highly cited papers on the analysis of pesticides and pharmaceuticals by liquid chromatography mass spectrometry. E. Michael Thurman, PHD, is a highly cited scientist in environmental chemistry and an Emeritus Scientist with the U.S. Geological Survey. He is currently Director of the Center for Environmental Mass Spectrometry at the University of Colorado, in Boulder, Colorado. His bibliography consists of more than 200 publications in environmental chemistry, including more than 100 journal articles, twenty proceedings and chapters, and eighty U.S. Geological Survey publications. Dr. Thurman has published five books dedicated to the chemical analysis of pesticides and natural products, sample preparation, and mass spectrometry.