title: Effect of temperature and duration of storage on the stability of polyfluoroalkyl chemicals in human serum.
abstract: We assessed the potential impact of temperature on the long-term stability of several polyfluoroalkyl chemicals in serum. We evaluated the concentrations of perfluorooctane sulfonate, perfluorohexane sulfonate, perfluorooctanoate and perfluorononanoate in 16 human serum samples stored at room temperature, 5 °C, -20 °C and -70 °C at several time points during an eight month period. Concentrations of the target analytes remained unchanged under all studied conditions, even when serum was kept at room temperature for 10 days.
authors.affiliation: Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA 30341, USA. kkato1@cdc.gov
authors.forename: Kayoko
authors.initials: K
authors.lastname: Kato
authors.forename: Lee-Yang
authors.initials: LY
authors.lastname: Wong
authors.forename: Brian J
authors.initials: BJ
authors.lastname: Basden
authors.forename: Antonia M
authors.initials: AM
authors.lastname: Calafat
mesh_terms: D004355:Drug Stability; D004356:Drug Storage / Q000379:methods*; D004784:Environmental Monitoring / Q000379:methods; D005466:Fluorocarbons / Q000737:chemistry*; D006801:Humans; D044967:Serum / Q000737:chemistry*; D013696:Temperature
chemical_list: D005466:Fluorocarbons