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UCT QuEChERS Kits Cited in Cranberry Perfluoroalkyl Substances Study
Perfluoroalkyl and polyfluoroalkyl substances (PFASs), in particular perfluorooctanoate (PFOA) and perfluorooctane sulfonate (PFOS), have been widely studied due to their persistence, distribution, toxicity and bio-accumulation in humans and the environment. These compounds can enter the environment through landfills (products containing stain repellents, food packaging), wastewater treatment plants (industry waste) and from the use of firefighting foams (aqueous film-forming foams [AFFFs]). In a recent study by Susan Genualdi et al., (FOOD ADDITIVES & CONTAMINANTS: PART A, 2017 https://doi.org/10.1080/19440049.2017.1361046 ), UCT’s QuEChERS kits (AOAC 2007.1, 6 g MgSO₄ with 1.5 g NaCl) and dispersive SPE (dSPE) sorbent (0.9 g MgSO₄, 0.3 g primary secondary amine [PSA], 0.15 g graphitized carbon black [GCB]) and were used for the extraction of PFAS in cranberries.
Development and Validation of a Multi-drug Analysis for Hair
A single sample preparation and instrument method was developed for the analysis of 54 analytes in hair. Analytes in the panel included drug of abuse, synthetic opioids, and ethyl glucuronide. Hair is an alternative matrix used in forensic toxicology due to its longer detection window. The matrix is also more stable, does not require refrigerated…
Not just Aroclors – The Inadvertent PCB Problem
Polychlorinated biphenyls (PCBs) are chlorinated organic compounds widely used in various industrial applications from the 1930s until their ban in the late 1970s. The compounds have excellent heat resistance and electrical insulating properties, so they were commonly used in industrial equipment. PCBs were also prevalent in caulking as a plasticizer in buildings constructed between 1950…
Clean Screen DAU Columns used in the analysis of ethylone related deaths
Researchers at the University of Florida, led by Dr. Bruce Goldberger, recently published an article in the Journal of Analytical Toxicology (DOI: 10.1093/jat/bkv053). The paper investigates nine postmortem cases in which ethylone, a synthetic cathinone, was identified.
UCT Flagship Sorbent Clean Screen® DAU cited in Beta Blockers/Beta Agonists Paper
UCT’s flagship solid phase extraction (SPE) sorbent, Clean Screen® DAU, has been employed by countless forensic toxicology laboratories for the extraction of various drugs and metabolites from biological samples. In a recent paper published in Journal of Chromatographic Science (doi: 10.1093/chromsci/bmx045) by A.A. Salem et al, this acclaimed sorbent (130 mg in 3 mL format) was effectively utilized to isolate β-blockers and β2-agonists from human plasma and urine.
UCT Specialty Chemical cited in Mechanobiology Study
In a recent article published in Lab on a Chip, authors Donghee Lee et al., (DOI: 10.1039/C8LC00320C), used UCT’s specialty chemical (Tridecafluoro-1, 1, 2, 2-Tetrahydrooctyl)-1- Trichlorosilane (T2492-KG) in a mold-making process. This involved the production of a microfluidic cell compression device that improved a microfluidic device proposed previously by equipping it with an array of cell compression units. The device contained a 5×5 array of alginate-chondrocyte constructs. This microfluidic cell was employed to investigate human cartilage cells. T2492-KG played an integral part of this procedure.