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Revolutionizing quat pesticide determination and quantitation workflows to protect food supply

Thermo Fisher Scientific

The Thermo Scientific Dionex IonPac CS21 ion exchange column enables reliable, accurate, and compliant food safety analysis

3 May 2022
Blake Forman
Content Creator

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Thermo Fisher Scientific Inc., a world leader in serving science, is providing laboratories performing food safety analysis with a new ion chromatography-tandem mass spectrometry (IC-MS/MS) workflow solution for regulatory compliant, cost-effective, and reliable analysis of quaternary ammonium pesticides (Quats).

The new Thermo Scientific Dionex IonPac CS21-Fast-4µm ion exchange column enables scientists to determine and quantify the four cationic pesticides: diquat, paraquat, mepiquat, and chlormequat easily and accurately. These highly polar, permanently charged chemicals are notoriously challenging to analyze, and have, until now, required complex workflows that are prone to quantitation errors. To meet regulatory requirements across Europe, Asia, and the Americas, and promote consumer safety, it is paramount for food safety laboratories to reliably determine the residue levels of these pesticides in or on food products.

“The Dionex IonPac CS21 is the gold-standard column for use in your Quat determination and quantitation workflow,” said Alexander Semyonov, global product manager, ion chromatography-mass spectrometry, Thermo Fisher Scientific. “Ion chromatography has an advantage over other technologies in that it causes fewer matrix effects and delivers superior retention and separation of ionic species.”

When coupled with the TSQ Altis Plus triple quadrupole mass spectrometer, food safety testing laboratories will benefit from reliable and robust Quat analysis that confidently meets regulatory requirements, while improving laboratory productivity. IonPac CS21 and Thermo Scientific TSQ Altis Plus triple quadrupole mass spectrometer complement the existing Anionic Pesticide Explorer (APX) solution from Thermo Fisher Scientific, providing total coverage for all polar, highly polar, ionic, and ionizable food contaminants in one IC-MS/MS system. Together, the system and new column can determine and quantify not only Quats, but also glyphosate and its metabolites, and related compounds.

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Ion ChromatographyIon chromatography, also known as ion exchange chromatography, is a high-performance liquid chromatographic technique used for the separation and identification of ions or polar molecules in a sample, including proteins, nucleotides and amino acids. Equipment includes ion exchange columns, ion exclusion columns, ion chromatography systems, pumps, and detectors. Find the best ion chromatography equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Mass SpectrometryMass spectrometry (MS) is a powerful analytical technique used to identify and quantify molecules based on the mass-to-charge ratio of gas-phase ions. It provides detailed information about the structure, composition, and properties of compounds and is widely used across fields such as environmental monitoring, materials science, drug discovery and development, food and beverage testing, and wider chemical research. Key MS techniques include tandem mass spectrometry (MS/MS), liquid chromatography–mass spectrometry (LS-MS) and inductively coupled plasma (ICP-MS). Choosing from these wide range of techniques and technologies can be a daunting task, so keep up to date with scientific applications, performance expectations, and customer reviews here all in one place. Visit our product directory to receive quotes direct from the manufacturer. PesticidesPesticides are used to protect crops from diseases, pests and unwanted plants. They are classed as persistent organic pollutants (POPs) and can be harmful to humans. The Environmental Protection Agency (EPA) currently regulates the use of pesticides in the USA. Food SafetyFood safety describes the prevention of food-borne illnesses. Contamination with a variety of pathogens can be prevented with adequate temperature control, hygiene and labeling. Food samples can be tested using GC/MS, HPLC, SPE, and qPCR to ensure their adherence to regulations.ChromatographyChromatography is a powerful technique used to separate and analyze components of mixtures based on their chemical properties. It is widely used in fields like biochemistry, pharmaceuticals, and environmental analysis. By exploiting differences in the interaction of substances with a stationary phase and a mobile phase, chromatography enables precise purification and quantification of compounds. Whether you're working with complex biological samples or industrial chemicals, chromatography is essential for obtaining high-quality results. Browse our peer-reviewed product directory to find the best chromatography systems, compare products, read customer reviews, and get pricing directly from manufacturers.

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Revolutionizing quat pesticide determination and quantitation workflows to protect food supply