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New Method for the Confirmation of Pesticides in Food Commodities Using GC Q-Orbitrap

12 Jul 2016

This study was aimed at developing a method based on GC-HRMS to confirm the presence of pesticides in food commodities, while studying the capabilities and limitations of the GC Q-Orbitrap.

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Thermo Scientific™ Q Exactive™ GC Orbitrap™ GC-MS/MS System

Thermo Fisher Scientific

The Thermo Scientific™ Q Exactive™ GC system is the first-ever combination of high resolution gas chromatography with high-resolution/accurate-mass (HR/AM) Orbitrap detection for the most comprehensive sample characterization. This easy-to-use system provides the most comprehensive characterization of samples in a single analysis for the highest confidence in compound discovery, identification, and quantitation. Building upon the flexible modularity of the Thermo Scientific™ TRACE™ 1300 Series GC, including user-exchangeable injectors and detectors, the Q Exactive GC system has the quantitative power of a GC triple quadrupole MS combined with the high precision, full scan high-resolution/accurate-mass capability that only Orbitrap technology can offer.   Key Features: Advanced quadrupole technology (AQT) for high transmission of selected masses Resolving power up to 120,000 at m/z 200 Part-per-trillion-level sensitivity Thermo Scientific™ Extractabrite™ ion source for robust, rugged electron impact (EI) and chemical ionization (CI) performance Curved linear C-trap for precise ion injection HCD collision cell for higher energy collisional dissociation provides MS/MS ion characterization Intelligent identification software elucidates the nature of each injected sample. Applications: Untargeted and targeted metabolomics Food and beverage Industrial analyses Environmental Pharmaceutical Clinical and toxicology

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LC-MSLC-MS (liquid chromatography-mass spectrometry) systems and equipment are used for separation and quantitative analysis of complex mixtures, combining liquid chromatography and mass spectrometry. Quantify proteins, contaminants, pesticides or screen for drug metabolites with a high level of sensitivity. LC-MS systems and equipment include reverse phase, normal phase and specialized columns integrated with various MS detectors such as time-of-flight (TOF), quadrupole, orbitrap or ion trap mass analyzers. LC-MS/MS instruments equipped with a qTOF or triple quadrupole analyzer give greater sensitivity and resolving power to your analysis. Find the best LC-MS equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Sample ManagementSample management systems include sample storage devices such as freezers and plate storers, sample environment enclosures and sample organization, retrieval and sorter systems. Useful system features include high-throughput, automation, robotic arms, automated liquid handling and associated database systems. Accessories in sample management include barcode scanners, heat sealers and tubes.Robotic InstrumentsRobotic instruments can be used for high-throughput automation of many lab processes. Such processes use instruments for assays like cell based assays and ELISA, for sample preparation like shakers, centrifuges and incubators, and for analysis such as sequencing and western blot analyzers. Useful features of robotic instruments include speed, reproducibility, barcode readers, software and automation.Food and Beverage AnalyzersFood and Beverage Analyzers are commonly used to provide information about the chemical composition, structure and physical properties of food materials.Food and Beverage ProcessingFood and Beverage Processing involves the preparation of food products for further analysis. Typical instrumentation includes blanchers, color sorters, cookers, grinders, and refrigeration. These are used to replicate the processes commonly used in the commercial preparation of food and beverages.Particle CharacterizationParticle characterization instruments are used to determine particle size distribution, shape, surface area, zeta potential, density and porosity of particles and materials. Multiple tecchniques are available for determining particle size, shape and count including dynamic light scattering (DLS), laser diffraction, electrozone (Coulter technique), imaging particle analysis and single particle optical sensing. Determine the density of your material with a gas pycnometer or examine its surface area and porosity with gas adsorption analyzers and mercury porosimeters. Find the best particle characterization instruments in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.GC-MS GC-MS (gas chromatography-mass spectrometry) instruments and equipment are used to separate, quantify and identify mixtures of small and volatile compounds, such as polycyclic aromatics, fatty acids and alcohols. Often used in drug detection, forensic investigation and environmental analysis for pesticides and contaminants, GC-MS is a powerful addition to your lab’s analytical capabilities. GC-MS/MS instruments equipped with a qTOF or triple quadrupole analyzers can give greater sensitivity and resolution to your analysis. Find the best GC-MS instruments and equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.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. Method DevelopmentMethod development is the process of creating and optimizing experimental techniques and protocols to achieve reliable, reproducible results. This is essential in various fields, including pharmaceuticals, environmental science, and diagnostics. Browse our peer-reviewed product directory to find the best method development solutions, compare products, check reviews, and get pricing directly from manufacturers.Plant SciencePlant science studies the biology of plants, including genetics, physiology, ecology, and biotechnology. Research in this field is essential for improving crop yields, disease resistance, and sustainability. Explore plant science tools in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.Triple Quadrupole MsChromatographyChromatography 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.Food TestingFood testing refers to a variety experiments including PCR, mass spectrometry, processing, QuEChERS, analyzing and Kjeldahl.EPRW

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