Wednesday Morning Session Preview: Emerging Environmental Contaminants
This session will cover a broad range of emerging environmental contaminants including organic components from fire retardant applied during a wildfire, disinfectant byproducts in swimming pools, pharmaceuticals in wastewater samples, and more.
Wednesday, 8:30 - 10:30 AM, Room 101
This session will cover a broad range of emerging environmental contaminants including organic components from fire retardant applied during a wildfire, disinfectant byproducts in swimming pools, pharmaceuticals in wastewater samples, and more.
The first talk in this session is titled “Organic components in a wildfire-applied fire retardant by positive and negative electrospray ionization high resolution mass spectrometry” and will be given by Colleen Rostad of USGS, WRD, National Research Program. Rostad will discuss the primary organic component of a widely used wildfire retardant, which was identified as 5-methyl-1H-benzotriazole, a corrosion inhibitor.
The next talk will be given by Xing-Fang Li of the University of Alberta and is titled “Mass Spectrometry Characterization and Determination of Emerging Disinfection Byproducts in Swimming Pools.” Li will discuss the new results of high resolution mass spectrometry characterization and SPE-LC¬–MS-MS determination of emerging halobenzoquinones (HBQs) in swimming pools.
Following Li will be Karl J. Jobst of the Ontario Ministry of the Environment with a presentation titled “Integrating comprehensive two-dimensional gas chromatography, (ultra)high resolution mass spectrometry and mass defect analysis for the identification of halogenated environmental contaminants.” Jobst will discuss the identification of (novel) environmental contaminants using GCxGC-HRMS and mass defect plots.
Next, Heinz Singer of Eawag - Swiss Federal Institute of Aquatic Science will present “Exact mass screening of 1024 pharmaceuticals in wastewater samples using QExactive mass spectrometer,” which will focus on the novel aspect of fast screening for 1024 pharmaceuticals in wastewater matrix with only chemical structures using high resolution mass spectrometry.
Mckay Allred of Oregon State University will discuss fluorinated chemicals that are quantified by large volume (900 μL) injection of an organic solvent extract onto an orthogonal HPLC-MS-MS system in the talk titled “Large Volume Injection of 900 μL Landfill Leachate Extracts for Fluorochemicals Analysis by Orthogonal Diol/C18 HPLC-MS/MS.”
Last, but not least, Christian Zwiener of the University of Tuebingen will present “Are the results of non-target screening for water contaminants very surprising?” This talk will be about non-target screening of emerging pollutants combined with statistical data evaluation and in-silico mass fragmentation.
Best of the Week: Food Analysis, Chemical Migration in Plastic Bottles, STEM Researcher of the Year
December 20th 2024Top articles published this week include the launch of our “From Lab to Table” content series, a Q&A interview about using liquid chromatography–high-resolution mass spectrometry (LC–HRMS) to assess chemical hazards in plastic bottles, and a piece recognizing Brett Paull for being named Tasmanian STEM Researcher of the Year.
Using LC-MS/MS to Measure Testosterone in Dried Blood Spots
December 19th 2024Testosterone measurements are typically performed using serum or plasma, but this presents several logistical challenges, especially for sample collection, storage, and transport. In a recently published article, Yehudah Gruenstein of the University of Miami explored key insights gained from dried blood spot assay validation for testosterone measurement.
Determination of Pharmaceuticals by Capillary HPLC-MS/MS (Dec 2024)
December 19th 2024This application note demonstrates the use of a compact portable capillary liquid chromatograph, the Axcend Focus LC, coupled to an Agilent Ultivo triple quadrupole mass spectrometer for quantitative analysis of pharmaceutical drugs in model aqueous samples.
