Characterization of Heavily Contaminated Sites using NMR Spectroscopy
Poster Jun 14, 2017
Darcy Fallaise, Brent G. Pautler, Arvin Moser, James G. Longstaffe
Groundwater is a vital part of our modern society, supplying a significant amount of the water we use in our homes, agricultural fields and industries every day. Given its importance, we are all affected by the environmental, health, and economic consequences when groundwater is polluted with hazardous chemical contaminants. Characterizing the nature and extent of contamination present at a site is a key step when developing risk assessments and implementing remedial solutions for contaminated groundwater.
Conventional analytical approaches are usually designed for the targeted analysis of a suite of suspected contaminants. These methods, however, often fail to identify compounds that are not normally analyzed for, including degradation products, proprietary chemicals, and other species for which standards are not readily available. NMR spectroscopy provides a unique analytical approach to present a more complete and unbiased understanding of the nature and extent of organic compounds present at contaminated sites undergoing assessment and monitoring activities.
This poster discusses the use of 1D and 2D NMR experiments, including 1H, 13C, 19F, TOCSY, HSQC, DOSY and homonuclear J-Resolved, for the non-targeted analysis of constituents present at heavily contaminated sites.
Overcoming the Challenges of Analysing Ionic Polar Pesticides in FoodPoster
Here, the novel application of the Waters’ Torus DEA column is presented, showing the improved performance of a UPLC-MS/MS method for the underivatised
analysis of glyphosate and a selection of other anionic pesticides.
A New Tool for the Automated Sample Preparation of Whole Blood Samples by LC-MS using a Commercial AutosamplerPoster
Automated sample preparation reduces the costs per sample and minimizes sample handling errors. Usually expensive and highly specialized pipetting robots are used. However, most of these systems are not designed with a direct interface for LC-MS applications. In addition common pipetting systems are not optimized for smaller scale sample series. Here we present a new tool for liquid handling of whole blood samples and direct sample injection.READ MORE
PAL SPME Arrow for the determination of volatile organic compounds in water by GC-MS after headspace-solid-phase microextraction (HS-SPME) according to German standard method DIN 38 407-41Poster
Robust and sensitive determination of volatile organic compounds in water by headspace solid phase microextraction (HS-SPME) according to German standard method DIN 38 407-41READ MORE