When considering the plethora of environmental pollutants that can be found in ourworld today, phthalates and bisphenols are notorious offenders, posing risks toecosystems and human health. These chemicals, commonly found in everydayproducts, have garnered attention for their adverse effects on the environment andwildlife and their potential impact on human well-being. Both phthalates and bisphenols have…
Katherine Biggie, a graduate student from Bowling Green State University, has published an excellent thesis entitled “CANNABIDIOL EXTRACTION AND QUANTIFICATION: A COMPARISON OF FOUR SOLVENT BASED EXTRACTION METHODS IN GUMMY MATRICES.” Four extraction methods were compared to determine the ideal method to use with a gummy matrix. The four methods are acetonitrile soak, QuEChERS followed…
Orange juice is among the top10 ten most adulterated beverages sold to consumers. Renowned analytical chemists Drs. Jian Wang and Willis Chow from the Canadian Food Inspection Agency (CFIA) have developed a method utilizing QuEChERS extraction and UHPLC/ESI Q-Orbitrap mass spectrometry to determine what is orange juice from concentrate (FC) and not from concentrate (NFC)….
QuEChERS extraction ECQUEU750CT-MP (4.0 g MgSO4, 1.0 g NaCl, 1.0 g sodium citrate tribasic dihydrate, 0.5 g sodium citrate dibasic sesquihydrate) QuEChERS cleanup ECQUEU315-MP (900 mg MgSO4, 150 mg PSA, 150 mg C18) ECMPS15CT (900 mg MgSO4, 150 mg PSA) ECQUCHL215CT (900 mg MgSO4, 300 mg C18, 300 mg ChloroFiltr®) Researchers at the Institute…
Researchers at the Institute of Plant Protection-National Research Institute and the Academy of Agrobusiness in Poland determined individual fungicides, Fluazinam, Dithianon, and Dodine, and mixtures of the three fungicides cause diverse effects in leafy vegetables. When researchers mixed the herbicides, they discovered that Fluazinam had a longer dissipation time and Dithianon and Dodine degraded faster….
Chemical protection of plants is necessary to maximize crop yields. Consequently, using pesticides can disrupt the concentrations of biochemical compounds in plants and reduce the availability of essential plant nutrients available to the human diet. Researchers at the Institute of Plant Protection – National Research Institute in Poland have recently published a paper showing how…
UCT QuEChERS Sorbents Cited in Mycotoxin Analysis Article Oats (Avena sativa) are a type of cereal belonging to the Poaceae grass family of plants. Although traditionally used for animal feed, the beneficial nutritional and physiological effects of oat products have generated an increased demand for oats in human nutrition. However, oats can be contaminated by…
A recently published article in the Journal of Chromatography B (L. De Colli, C. Elliott, J. Finnan, J. Grant, E.K. Arendt, S.P. McCormick, M. Danaher, Determination of 42 mycotoxins in oats using a mechanically assisted quechers sample preparation and UHPLCMS/MS detection, Journal of Chromatography B (2020), doi: https://doi.org/10.1016/j.jchromb.2020.122187) featured a developed and validated method for…
In a new study published in the Journal of Agricultural and Food Chemistry, the Department of Toxicology and Residue Monitoring in Albania partnered with the U.S. Department of Agriculture, Eastern Regional Research Center and the Pesticide Residue Laboratory in Sao Paulo, Brazil to develop and validate a new method for simultaneous determination of 106 veterinary…
Per- and polyfluoroalkyl substances (PFASs) are a diverse group of synthetic organofluorine compounds that have been widely used in industrial applications and consumer products such as non-stick cookware, food packaging, fire-fighting foams, carpeting, apparels and metal plating. PFASs are persistent in the environment and are extremely resistant to degradation due to heat, acids or bases….
In a recent paper published in Food Chemistry by Claudio Alister et al., (oi: https://doi.org/10.1016/ j.foodchem.2018.06.090), A UCT’s QuEChERS blend containing 4 g magnesium sulfate (MgSO4), 0.5 g of disodium citrate (C6H6Na2O7), 0.5 g of trisodium citrate (Na3C6H5O7) and 1 g of sodium chloride (NaCl) was employed in the primary extraction of pesticides from prunes. In the secondary clean up stage, 1.5 g MgSO4 and 0.25 g of PSA (UCT Selectra®) were used.
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).
Preliminary studies have shown that the QuEChERS technique should be considered as a reliable alternative when extracting multiple drug classes from challenging biological matrices. The project described here, explores a modified universal QuEChERS approach for sample clean-up in post-mortem liver, coupled with LC-MS detection, for the analysis of several common prescription and illicit drugs. Read more here.
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