Streamlining method development and increasing productivity with the simultaneous analysis of volatile organic compounds and 1,4-Dioxane in Water

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Webinar

  • Date: Sep 25, 2018 - 15:00 - 16:00 (local time)
  • Presenter: Detlef Knappe
  • Copyright: Image: Jonutis/Shutterstock
  • Categories: Gas Chromatography / Base Peak
thumbnail image: Streamlining method development and increasing productivity with the simultaneous analysis of volatile organic compounds and 1,4-Dioxane in Water

Latest webinar from Agilent Technologies
 

Streamlining method development and increasing productivity with the simultaneous analysis of volatile organic compounds and 1,4-Dioxane in Water

Broadcast on September 25, 2018

11:00 am EDT

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1,4-Dioxane and volatile organic compounds (VOCs) frequently co-occur in contaminated groundwater. A recent survey of groundwater quality showed that of groundwater plumes with known 1,4-dioxane contamination, 95% contained other chlorinated solvents, and 76% contained 1,1,1-trichloroethane, a solvent that was commonly stabilized with 1,4-dioxane. To date, separate analytical methods are used to measure VOCs and 1,4-dioxane. As a result, approximately two-thirds of groundwater plumes with known 1,1,1-TCA contamination have not yet been surveyed for 1,4-dioxane contamination. One objective of our research is to develop a rapid and sensitive method for the simultaneous determination of 1,4-dioxane and 58 VOCs. A second objective is to assess the sensitivity of Agilent’s 7010 triple quadrupole mass spectrometer in selected-ion monitoring (SIM) and MS-MS modes. Results to date suggest that heated purge-and-trap preconcentration followed by GC/MS-SIM permits the simultaneous determination of 1,4-dioxane and VOCs at sub-ug/L levels in a wide range of aqueous matrices. The developed method is also suitable for the determination of 1,2,3-trichloropropane in the context of California’s recent drinking water standard of 5 ng/L.

What you will learn:

  • A new, efficient, and sensitive method for the combined detection of volatile organic compounds (VOCs) and 1,4-dioxane in a wide range of aqueous matrices will be introduced
  • The power of multiple reaction monitoring to resolve interferences in the analysis of mixtures of VOCs and 1,4-dioxane will be demonstrated

Who should attend:

  • Environmental analytical chemists
  • Environmental scientists and engineers
  • Water quality professionals
  • Drinking water providers

   Your Presenter

Lee Jackson

Detlef Knappe

Professor, Dept. of Civil, Construction, and
Environmental Engineering
North Carolina State University

Detlef Knappe: Biography

Detlef Knappe is the S. James Ellen Distinguished Professor of Civil, Construction, and Environmental Engineering at NC State University. In 1985, he moved from a small Black Forest town in Germany to a small prairie town in Illinois, where he began his undergraduate studies. In 1996, he received his PhD degree in Environmental Engineering from the University of Illinois at Urbana-Champaign and joined the Civil and Environmental Engineering faculty at North Carolina State University in Raleigh. Current efforts in the Knappe research group focus on (1) developing and evaluating physical-chemical (and sometimes biological) treatment processes for the control of disinfection byproduct precursors and organic micropollutants (carcinogenic volatile organic contaminants, 1,4-dioxane, per- and polyfluoroalkyl substances), and (2) overcoming gaps between the Clean Water Act and the Safe Drinking Water Act by developing information about the effects of reactive and unregulated wastewater contaminants on drinking water quality and treatment. Detlef was recently selected to serve on the Secretaries’ Science Advisory Board of the North Carolina Department of Environmental Quality and the North Carolina Department of Health and Human Services, and he serves as Trustee on the Water Science and Research Division of the American Water Works Association.

 

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