The Brodbelt group focuses on the development of quadrupole ion trap mass spectrometry for a variety of interdisciplinary applications related to bioanalytical, organic, and inorganic areas. Research efforts involve three aims: A) evaluation of aspects of molecular recognition, B) development of photodissociation for the characterization of peptides, proteins, and DNA, and C) analysis of phytochemicals in food, urine, and plasma for studies of metabolism and bioavailability.