February 18, 2019

Julie Konzuk and Carol Cheyne Coauthor Paper on the Characterization of a Nonaqueous Phase Liquid Journal of Magnetic Resonance in Chemistry

Julie Konzuk, Ph.D., PEng (Ontario) and Carol Cheyne (Ontario) coauthored a paper entitled "Practical application of 1H benchtop Nuclear Magnetic Resonance (NMR) spectroscopy for the characterization of a nonaqueous phase liquid from a contaminated environment" published in the journal of Magnetic Resonance in Chemistry (MRC) on pages 1-8 on December 17, 2018.

Their coauthors were Darcy Fallaise, Hannah Balkwill Tweedie, E. Erin Mack, and James G. Longstaffe.

Julie is a Principal Environmental Engineer based in Ontario with more than 10 years of experience focused on working with clients on the application of specialized technologies to remediate groundwater containing recalcitrant compounds.

Carol is an Environmental Scientist based in Ontario focused on chemistry and working with clients to provide solutions for their contaminated soil, sediment, and groundwater problems.

MRC is devoted to the rapid publication of papers concerned with the development of magnetic resonance techniques or in which the application of such techniques plays a pivotal part. Contributions from scientists working in all areas of NMR, electron paramagnetic resonance (ESR), and Nuclear Quadrupole Resonance (NQR) are invited, and papers describing applications in all branches of chemistry, structural biology, and materials chemistry are published.

The journal is of particular interest not only to scientists working in academic research, but also those working in commercial organizations who need to keep up-to-date with the latest practical applications of magnetic resonance techniques.

Abstract

Nonaqueous phase liquids (NAPLs) located at the surface of the water table and/or below the water table are often a significant source for groundwater contamination near current or former commercial/industrial facilities. Due to the complex and long history of many industrial sites, these NAPLs often contain a complex mixture of contaminants and as such can be difficult to fully characterize using conventional analytical methods. Remediation and risk assessment activities at sites containing NAPLs may, subsequently, be hindered as the contamination profile may not be fully understood. This paper demonstrates the application of bench‐scale 1H nuclear magnetic resonance (NMR) spectroscopy as a practical tool to assist with the characterization of complex NAPLs. Here, a NAPL collected from a contaminated site situated near a former chemical manufacturing facility was analyzed using a combination of one‐dimensional (1D) 1H NMR spectroscopy and two‐dimensional (2D) 1H J‐resolved spectroscopy (JRES). It is shown that 1D NMR experiments are useful in the rapid identification of the classes of compounds present, whereas 2D JRES NMR experiments are useful in identifying specific compounds. The use of benchtop NMR spectroscopy as a simple and cost-effective tool to assist in the analysis of contaminated sites may help improve the practical characterization of many heavily contaminated sites and facilitate improved risk assessments and remedial strategies.

More Information

Read the article: https://onlinelibrary.wiley.com/doi/10.1002/mrc.4816
For consultation regarding nuclear magnetic resonance spectroscopy for the characterization of nonaqueous phase liquids, contact Julie Konzuk at This email address is being protected from spambots. You need JavaScript enabled to view it.
Learn more about Julie at: https://www.geosyntec.com/people/julie-konzuk
Learn more about Carol at: https://www.linkedin.com/in/carol-cheyne-5688a270/

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Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure.

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