The piece documents a brief history of the QuEChERS extraction method and its application in pesticide residue testing for cannabis. Read more here: https://lnkd.in/dhUaURg
UCT, the first company to commercialize the QuEChERS technique, still maintains its support for facilities around the world analyzing food samples for the detection of herbicides, pesticides, and insecticides. The most widely used class of the insecticides in last twenty years are neonicotinoids, which act as receptor agonists of nicotinic acetylcholine. In a paper published in Journal on Processing and Energy in Agriculture by P. Jovanov et al., (2017) 21, 53-55)), UCT’s famous QuEChERS buffered sample extraction kit , ECQUEU750CT, and general dispersive cleanup kit, ECMPS15CT, were used in the extraction of honey samples taken from the Province of Vojvodina, Poland, for the presence of neonicotinoids.
The Clean Screen® THC solid phase extraction (SPE) column is UCT’s flagship THC sorbent. In a paper authored by Declues et al., (Journal of Forensic Sciences (doi: 10.1111/1556-4029.13168)) the Clean Screen THC columns were employed to analyze 1204 whole-blood samples confirmed to contain THC alone or in combination with other drugs out of nearly 5000 Orange County, California drivers suspected of driving under the influence of drugs in a extended time period. The limit of quantification (LOQ) for both THC and carboxy-THC was determined to be 2 ng/ mL in whole blood. This study using genuine drugs and driving cases demonstrates why forensic toxicologist turn time and time again to UCT’s finest sorbents for their analyses.
In this recently published journal by Wang and Cheung in the world respected journal J.AOAC International (Volume 99, Number 2, March-April 2016, pp. 539-557(19) ) a quick, easy, cheap, effective, rugged, and safe (QuEChERs) method for extraction of 187 pesticides in both red and white wine samples is presented using ultra-HPLC for the analysis of a wide range of pesticides. The pesticide residues were extracted from wine samples by a QuEChERS approach employing UCT’s ENVIRO CLEAN salts/sorbents.
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…
For many of us, we can remember our parents and grandparents peeling potatoes before cooking them. For those of us who like the taste of potato skins, we often wondered why they bothered. Before mass production and grocery stores, people grew their potatoes in a garden or bought them from people who raised them in…
Over the past two decades, prescription and illicit opioid use has led to changes in public health policy to address the increasing number of opiate/ opioid-related deaths. UCT’s flagship sorbent, Clean Screen® DAU, is recognized as the finest solid phase extraction (SPE) sorbent for opiate/opioid extraction and analysis from biological samples. In a new paper published in Journal of Forensic Sciences (House Publication of American Academy of Forensic Sciences) JFS doi: 10.1111/1556-4029.13511 by Love et al., cases submitted for analysis to Hennepin County Medical Examiner’s Office between 2004 through 2015 were extracted utilizing UCT’s DAU column, where heroin was identified as a significant contributor or as the primary cause of death.
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