A Multi-residue Method for the Analysis of Pesticides and Pesticide Degradates in Water Using HLB Solid-phase Extraction and Gas Chromatography–Ion Trap Mass Spectrometry

  • Michelle L. HladikEmail author
  • Kelly L. Smalling
  • Kathryn M. Kuivila


A method was developed for the analysis of over 60 pesticides and degradates in water by HLB solid-phase extraction and gas-chromatography/mass spectrometry. Method recoveries and detection limits were determined using two surface waters with different dissolved organic carbon (DOC) concentrations. In the lower DOC water, recoveries and detection limits were 80%–108% and 1–12 ng/L, respectively. In the higher DOC water, the detection limits were slightly higher (1–15 ng/L). Additionally, surface water samples from four sites were analyzed and 14 pesticides were detected with concentrations ranging from 4 to 1,200 ng/L.


Pesticides Water Solid-phase extraction GC–MS 



Funding for this work was provided by USGS Toxic Substances Hydrology Program, California Bay-Delta Authority (project # ERP-02-P42) and the USGS Federal/State Cooperative Program.


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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Michelle L. Hladik
    • 1
    Email author
  • Kelly L. Smalling
    • 1
  • Kathryn M. Kuivila
    • 1
  1. 1.U.S. Geological SurveySacramentoUSA

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