Clean Screen® DAU SPE Cited in Bathsalts Paper

ByUCT

One of the most difficult challenges facing forensic toxicologists is the extraction, analysis and quantification of  synthetic cathinones. The abuse of synthetic cathinones, formerly marketed as “bath salts”, has increased over the last decade. Three common drugs in this class include 3,4-methylenedioxypyrovalerone (MDPV), 4-methylmethcathinone (mephedrone), and 3,4-methylenedioxymethcathinone (methylone).  Analysts working with complex matrices such as brain tissues require an extraction method that can produce extracts that are not only clean but highly reproducible. In a paper published in Journal of Analytical Toxicology (JAT) by Peters et al., from East Tennessee University (doi: 10.1093/jat/bkw074), UCT’s flagship SPE Clean Screen® DAU was employed to extract the bathsalts from rat brain tissue. Briefly, MDPV, mephedrone, methylone, and their deuterium-labeled analogs were subjected to SPE (Clean Screen DAU) and analyzed by LC-MS/MS. This article demonstrates the power of the Clean Screen®DAU to assist forensic toxicologists in efficiently extracting newer psychoactive compounds from very complex matrices.

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UCT ZSDAU020 Columns Cited in Methamphetamine Primate Study

ByUCT

Amphetamine-type stimulants, including methamphetamine, are the world’s second most commonly used illicit drug (surpassed only by marijuana), with at least 30 million people using it regularly. In a recent paper published by D.V.Vaupel et al  working with the scientists at National Institute of Drug Abuse (NIDA), UCT’s flagship sorbent Clean Screen® DAU (ZSDAU020) was employed to extract and analyze methamphetamine from the whole blood of eight male rhesus monkeys to gain a better toxilogical understanding of the long-term effects of these compounds.

UCT Styre Screen® THC Columns cited in Cannabinoids Paper

UCT Styre Screen® THC Columns cited in Cannabinoids Paper

ByUCT

UCT is well recognized in the analytical testing field for manufactoring the finest silica and polymeric based sorbents. Most recently, The Styre Screen ® SPE column line has been utilized in a paper authored by R.C. Kevin et al., (University of Sydney, Australia) in the journal Forensic Toxicology (doi:10.1007/s11419-016-0330-0) where urinary cannabinoid concentrations were measured during nabiximols (Sativex®)-medicated inpatient cannabis withdrawal. The hydrolysed samples containing (CBD, THC, THC-COOH, and 11-OH-THC) were directly loaded onto Styre Screen® (SSTHC063) SPE columns.  This paper demonstrates the efficiency of UCT’s polymeric Styre Screen® sorbents in the analysis of cannabinoids, and why researchers working in the field of cannabinoid analysis turn first to UCT for the finest in silica and polymeric sorbents. 

Pharmacokinetic Evaluation of a Cannabidiol Supplement in Horses
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Pharmacokinetic Evaluation of a Cannabidiol Supplement in Horses

ByUCT

A new study led by researchers at Oklahoma State University focuses on a better understanding of the pharmacokinetics of orally administered cannabidiol in horses. With the growing popularity of cannabidiol products in the equine industry, it becomes necessary to comprehend the efficacy and pharmacology of such drugs. A low and a high dose of CBD…

UCT QuEChERS Used for Analysis of Herbicide in Infant Formula

UCT QuEChERS Used for Analysis of Herbicide in Infant Formula

ByUCT

Haloxyfop is a selective herbicide that is used to protect crops such as potatoes and carrots against persistent grasses. In a recent paper authored by Urairat Koesukwiwat et al., (Analytical and Bioanalytical Chemistry https://doi.org/10.1007/s0021), the authors developed and validated a simple method for total haloxyfop analysis in infant formula and related ingredient matrices using UCT’s QuEChERS and liquid chromatography-tandem mass spectrometry (LC-MS/MS). 

UCT Clean Screen ®THC cited in Drugs and Driving Study from Orange County, California

UCT Clean Screen ®THC cited in Drugs and Driving Study from Orange County, California

ByUCT

Driving under the influence of drugs (DUID) has become a growing issue nationwide and likewise in Orange County (OC), California. In research published in Journal of Forensic Sciences by K. Declues et al., UCT’s famous Clean Screen® THC SPE cartridges were used to extract cannabinoids from samples of whole blood taken from apprehended drivers in OC over a two-year period. In this study (Part II of a two stage study), a comparison was conducted of examined objective signs, eye examinations and physiological indicators with their relationship to the presence of identified concentrations of THC. 

Strawberries remain at top of pesticide list, report says.

Strawberries remain at top of pesticide list, report says.

ByUCT

The recently released annual report by the Environmental Working Group found that nearly 70% of samples of 48 types of conventionally grown produce were contaminated with pesticide residues. This year, strawberries remained at the top of the list of produce with the highest concentration of pesticides, while sweet corn and avocados were ranked as having the lowest concentration.  For all your pesticide residue detection needs visit https://sampleprep.unitedchem.com/products/quechers. To read more about the recently released report, click here. 

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