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A joint study between the University of Tennessee (Knoxville, Tennessee) and the University of Pennsylvania School of Veterinary Medicine (Philadelphia, Pennsylvania) compared directly measured vitamin K1 (vitK1) concentrations in healthy dogs and dogs with chronic enteropathy (CE) using liquid chromatography tandem mass spectrometry (LC–MS/MS); they also investigated whether supplementation of vitK1 in dogs with CE would significantly increase vitK1 concentrations.

A study conducted by the Agriculture Research Centre of Giza, Egypt, and Jilin Agricultural University in China, evaluated the efficacy of stinging nettle extract, nettle smoke, and formic acid in the controlling of Varroa mites, a major threat to honeybee colonies, with a focus on mite infestation reduction, honeybee mortality, and biochemical responses. Gas chromatography–mass spectrometry (GC–MS) was used to identify key bioactive compounds in the stinging nettle extract.

An Australian study used pyrolysis coupled to gas chromatography-mass spectrometry (Pyr-GC–MS) to analyze the presence of plastic polymers in commercial and homemade composts. LCGC International spoke to Simran Kaur—a PhD candidate at the Queensland Alliance for Environmental Health Sciences (QAEHS) at The University of Queensland in Woolloongabba, Australia—to find out more about her team’s findings.

Based on their hypothesis that smelling anxiety chemosignals can, like visual anxiety induction, lead to an increase in odor sensitivity, a joint study between the University of Erlangen-Nuremberg (Erlangen, Germany) and the Fraunhofer Institute for Process Engineering and Packaging (Freising, Germany) combined behavioral experiments, odor profile analysis by a trained panel, and instrumental analysis of odorants (gas chromatography-olfactometry) and volatiles (gas chromatography-mass spectrometry).

A pilot study investigating whether nicotinamide adenine dinucleotide kinase (NADK) expression is selectively diminished in alcohol-associated liver cirrhosis (AC), as well as evaluating its potential as a biomarker for this condition, measured AC and non-AC (NAC). Nicotinamide adenine dinucleotide (NAD+) and nicotinamide adenine dinucleotide phosphate (NADP+) levels in human liver samples were measured using liquid chromatography-mass spectrometry (LC-MS).

Saba Aslani from the University of Texas at Arlington spoke to LCGC International about a collaborative project with Northwestern University, the University of Hong Kong, and BioTools, Inc., investigating mirror-image cyclodextrins using ultra-high performance liquid chromatography–tandem mass spectrometry (UHPLC–MS/MS) and vibrational circular dichroism (VCD).

Researchers developing a plant microbial consortium that can repair in-situ high concentration TNT (1434 mg/kg) contaminated soil, as well as overcome the limitations of previous studies that only focused on simulated pollution, used untargeted metabolone gas chromatography-mass spectrometry (GC-MS) to measure their success.