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Optimize Your Pesticide Detection and Quantitation

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Discover the latest products and methods for the analysis of pesticides

5 Nov 2016
Lois Manton-O'Byrne, PhD
Executive Editor

Editorial article

Discover the latest products and methods for the analysis of pesticides

1. WEBINAR: Simultaneous Quantitative Determination and Screening of Pesticides using LC-Q-Orbitrap-MS

Pesticide residue analysis is challenging, as there are many substances (>500) to test for; some of which are nearly always present, and some of which are found very infrequently. Scientists have two analytical requirements: quantifying known associated pesticides using analytical quality control (AQC), and screening for any additional pesticides. Learn how to overcome these challenges by watching the webinar on-demand or reading the highlights of the Q&A session.

2. VIDEO: Elevate Your LC/MS to New Heights of Sensitivity and Productivity

Agilent delivers a new level of confidence with the 6400 series Triple Quadrupole LC/MS. Ideal for quantifying drug metabolites, food contaminants or pesticides, the 6400 series allows you to detect trace level organic compounds in complex matrices. Bring unprecedented sensitivity, accuracy, reproducibility and productivity to your laboratory. Watch video.

3. APPLCATION NOTE: Enantioselective Resolution and Analysis of Chiral Pesticides in Formulations by Ultra Performance Convergence Chromatography (UPC2) with UV Detection

The study of chiral compounds has been a challenge due to the difficulty in resolving the stereoisomers. Convergence chromatography is a complimentary separation technique to liquid chromatography, providing orthogonal selectivity using supercritical CO2 as the primary mobile phase. This application note demonstrates the enantiomeric and/or diastereomeric resolutions of two pesticides, metalaxyl-M (a phenylamide fungicide) and S-metolachlor (acetanilide class of herbicides), and their analyses in aqueous-based pesticide formulations. Download method.

4. APPLICATION NOTE: Polyurethane Foam as an Effective Adsorbent for Pesticides in Air (GC Analysis)

Increasing concern over the presence of pesticides in indoor and ambient air has led to the use of polyurethane foam (PUF) as a lightweight, easy-to-use sampling material for these semi-volatile compounds. Cylindrical PUF plugs of appropriate density effectively trap contaminants without creating excessive back pressure. In this application note, background and pesticide recovery from cleaned and un-cleaned PUF plugs were compared, to verify that cleaning procedures do not alter the performance of the plugs. Download method.

5. PRODUCT: Start-to-Finish Workflows Designed to Increase Productivity for Pesticide Residue Testing

Food monitoring and testing laboratories can streamline workflows and add new analytical capabilities for pesticide analysis using liquid chromatography-mass spectrometry (LC-MS) solutions designed to optimize start-up time, reduce costs and address evolving customer and industry demands. Read more.

6. VIDEO: An Automated SPE Technique for the Analysis of Multiple Organochlorine Pesticide Residues from Wine

Watch this video to see how the Horizon Technology SmartPrep Extractor was used to develop an automated SPE method for the extraction of 20 organochlorine pesticides from wine samples. Watch video.

7. PRODUCT: Shimadzu’s GCMS Smart Database Series Simplifies GC-MS/MS Method Development

Shimadzu Scientific Instruments has announced the release of its new GCMS Smart Database Series. The series is comprised of separate databases for analyzing pesticides, forensic toxicological substances, metabolites and environmental pollutants. Hundreds of related compounds with optimized transitions and collision energies, CAS registry numbers and retention indices (RI) are included within each database. The software series eliminates the need to configure complicated analysis conditions, as simultaneous high-sensitivity analysis of samples using GC-MS/MS is supported. Read more.

8. APPLICATION NOTE: Determination of Pesticide Residue in Food of Plant Origin by an Automated QuEChERS Solution

The study in this application note used laboratory spiked samples, and samples previously shown to have incurred residues, to validate the performance of implementing QuEChERS on a fully automated system for pesticides amenable to analysis by UHPLC-MS/MS. Download method.

Have you used any of the products above? Share your views with our community of laboratory scientists by writing a review today!

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Gas ChromatographyGas chromatography (GC) is an analytical technique used to separate and quantitate mixtures of small and volatile compounds. Gas chromatographs or GC systems include components such as GC columns, detectors, pumps and autosamplers. Choose from packed or capillary GC columns, flame ionization (FID), photoionization (PID) electron capture detectors and selective or non-selective detectors. Find the best gas chromatographs in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.UHPLC and HPLCHigh performance liquid chromatography (HPLC) and ultra high performance liquid chromatography (UHPLC), also known as UPLC, are analytical techniques used to separate, identify and quantitate components of complex mixtures including biological samples such as proteins and lipids as well as chemical mixtures of pesticides, drugs and oils. Both techniques are liquid chromatographic methods but differ by operating pressures (HPLC < 6000 psi < UHPLC ). Components of HPLC and UHPLC systems include columns, detectors, pumps, autosamplers and column heaters. Explore a range of UHPLC and HPLC columns for your specific sample needs including reverse phase, normal phase, ion exchange, HILIC, ion exclusion and size exclusion columns. For more specialized HPLC, explore FPLC, countercurrent LC and simulated moving bed systems. Find the best UHPLC and HPLC equipment in our peer reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Sample PreparationSample preparation can improve the quality and speed of separation techniques. Products to assist sample preparation include filtration equipment, evaporators, membranes and sieves.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.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. Gas Generators and AnalyzersGas generators are used for supplying or monitoring a regular flow of a high purity gas such as nitrogen, hydrogen or zero air for applications such as gas chromatography. Gas analyzers can be used in supply chain processes and laboratory experiments with portable analyzers for monitoring CO<sub>2</sub> and O<sub>2</sub> levels as well as trace gases. Regular flow can be produced with gas control modules and flow meters. Find the best gas generators and analyzers in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Environmental Monitoring and TestingEnvironmental monitoring and testing uses handheld portable analyzers, kits, spectrometers or chromatography systems for air, water, soil, food and other sample testing. Useful features of analyzers such as BOD and COD include portability, easy calibration, automation and sensitivity.  Environmental test kits for pH, water, moisture, etc, should be accurate, sensitive, reliable, fast and easy to use.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.QuEChERSThe QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) method is a streamlined approach that is used to extract multi-residue target compounds from food samples. It is most commonly used by analytical chemists studying pesticide residues in food.Water PurificationThere are a number of water purification methods available to remove contamination from laboratory water. These systems include demineralization, reverse osmosis, filtration and ultrafiltration. A combination of methods is sometimes necessary to achieve purified water suitable for use in experiments.Homogenizers and BlendersHomogenizers and blenders are used to homogenize various types of material, including tissue, cells, plants, food, soil, biological and chemical samples for subsequent analysis. Lab equipment for sample homogenization includes handheld and benchtop homogenizers, bead mill, ultrasonic and multiple sample homogenizers, high shear homogenizers and blenders. Homogenizer bead and probe multipacks are available to avoid cross contamination of samples, as well as cooling systems for homogenizing temperature-sensitive samples. Homogenizers are often used in the first step of extraction of DNA, RNA and proteins from tissue and cell samples. Find the best homogenizers and blenders in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Chiral Compounds

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