title: Determination of perfluorooctanoic acid and perfluorooctane sulfonate in Lake Victoria Gulf water.
abstract: In this study we present a report of investigation from the screening of perfluorooctanoic acid and perfluorooctane sulfonate in Lake Victoria Gulf and in its source rivers. The first determined levels of perfluorinated alkylated substances in Lake Victoria ecosystem are presented. Variability in the concentrations of perfluorooctanoic acid or perfluorooctane sulfonate in river waters (range perfluorooctanoic acid 400-96,400 and perfluorooctane sulfonate <400-13,230 pg/L) was higher than for Lake waters (range perfluorooctanoic acid 400-11,650 and perfluorooctane sulfonate <400-2,530 pg/L respectively) suggesting generalized point sources such as domestic and industrial waste. The lowest limit of quantification was 400 pg/L for both analytes and limit of detection were 75 and 40 pg/L for perfluorooctanoic acid and perfluorooctane sulfonate respectively. Typical values for precision obtained were 0.14-3.7%, with concentrations range from 400 pg/mL to 1 microg/mL).
authors.affiliation: IWW Rheinisch-Westfälisches Institut für Wasserforschung gemeinnützige GmbH, Biebesheim, Germany. fraora@yahoo.com
authors.forename: Francis
authors.initials: F
authors.lastname: Orata
authors.forename: Natalia
authors.initials: N
authors.lastname: Quinete
authors.forename: Friedrich
authors.initials: F
authors.lastname: Werres
authors.forename: Rolf-Dieter
authors.initials: RD
authors.lastname: Wilken
mesh_terms: D017738:Alkanesulfonic Acids / Q000032:analysis*; D002138:Calibration; D002210:Caprylates / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D005466:Fluorocarbons / Q000032:analysis*; D012680:Sensitivity and Specificity; D053719:Tandem Mass Spectrometry; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D017738:Alkanesulfonic Acids; D002210:Caprylates; D005466:Fluorocarbons; D014874:Water Pollutants, Chemical; C023036:perfluorooctanoic acid; C076994:perfluorooctane sulfonic acid