Identification of compounds in water by high resolution mass spectrometry
A chemical manufacturer for the rubber and plastics industries used over 100 chemicals for syntheses. For at least 30 years, some fractions of these chemicals, synthesis products, and their byproducts were transferred to a waste pond. After exposure to air, rain, solar radiation, and soil particles, fractions of these compounds, reaction byproducts, and transformation products had migrated into an underground plume 3/4 of a mile long and up to 1/3 of a mile wide. During droughts, water above the plume might be used as part of a nearby town’s drinking water supply. It was therefore essential to identify as many of the compounds present in this water as possible in order to assess toxicological risk to humans and to provide a list of target compounds for evaluating the efficacy of drinking water treatments.