pesticide analysis Articles

  • Analysis of the Pesticides Carbaryl, Diuron, and Propachlor

    Application Report 208: Analysis of the Pesticides Carbaryl, Diuron, and Propachlor Using Ascentis™ C18 This application demonstrates the suitability of the Ascentis C18 for efficient separation of the pesticides carbaryl, diuron, and propachlor. The analysis is carried out using a 15 cm x 4.6 mm I.D Ascentis C18 column under isocratic ...


    By MilliporeSigma

  • Ascentis™ C18 for the Analysis of Urea Pesticides

    Application Report 210 Analysis of Urea Pesticides Using Ascentis™ C18 This application demonstrates the suitability of the Ascentis C18 for the analysis of urea pesticides, utilizing isocratic conditions and UV detection. Compounds analyzed include: Fenuron, Monuron, Diuron, and Linuron.         ...


    By MilliporeSigma

  • Ascentis™ RP-Amide for the Analysis of Pesticides

    Application Report 209 Analysis of the Pesticides Carbaryl, Diuron, and Propachlor Using Ascentis™ RP-Amide  This application demonstrates the suitability of the Ascentis RP-Amide for the analysis of the pesticides carbaryl, diuron, and propachlor, utilizing isocratic conditions and UV detection.     ...


    By MilliporeSigma

  • Recent Federal Developments

    TSCA/FIFRA EPA Extends Comment Period For Draft Guidance For Pesticide Registrants On Notifications, Non-notifications, And Minor Formulation Amendments: On October 5, 2017, the U.S. Environmental Protection Agency (EPA) issued a notice of extension of the comment period for the draft guidance  ...


    By Bergeson & Campbell, P.C.

  • Complete Solutions for Pesticide Residue Analysis in Foods

    Pesticides are widely used in many areas of modern agriculture as they are considered economically important for high yield production. In today’s world of extensive importing and exporting of food goods, the analysis and monitoring of pesticides is essential, although challenging.The determination of an effective, standardized approach for extracting pesticides from food sources and ...


  • GC-MS Analysis Agricultural Pesticides on the SLB-5ms

    This application illustrates the analysis of 29 different agricultural pesticides of different classifications and functionalities, using the SLB-5ms, 30 m x 0.25 mm I.D., 0.25 μm  The analysis was done by GC-MS using selected ion monitoring (SIM) to allow detection of all compounds at 100 µg/L. The standard solution was made in toluene to increase it stability and enhance response ...


    By MilliporeSigma

  • Ascentis™ C18 for the Analysis of the Pesticides Aldicarb, Carbofuran, and Atrazine

    Application Report 214  Analysis of the Pesticides Aldicarb, Carbofuran, and Atrazine Using Ascentis™ C18  This application demonstrates the suitability of the Ascentis C18 for the analysis of the pesticides aldicarb, carbofuran, and atrazine.       ...


    By MilliporeSigma

  • GC-MS/MS Analysis of Pesticides in Drinking Water

    According to Japan’s list of drinking water quality control substances, pesticides are included as supplemental items subject to analysis. Designed to complement the standards, the Ministry of Health, Labour and Welfare encourages water utilities to monitor pesticide levels and achieve specified targets. Among the 102 listed pesticides, 84 are simultaneously analyzed using solid-phase ...

  • Analysis of Pesticides in Food - Identification and Quantitation of Oxychlordane in the

    The trace analysis of pesticides in foods is commonly performed by gas chromatography with mass spectrometric detection. Typically, a general analytical method that can monitor a broad range of the potential pesticides in the sample is used, and the method is designed to provide a definitive measurement of the concentration of the various potential pesticides based on the intensity of a major ...


  • Pesticide Analysis by GC / ECD / NPD & FID

    Since 1963, when Rachel Carson published Silent Spring about the destructive power of synthetic chemicals, regulatory agencies in the U.S. have increasingly restricted the manufacture and use of pesticides. The goals of pesticide regulations are to eliminate the use of persistent chemicals like DDT, and to encourage the development of safe, targetspecific compounds. Because of the high ...


    By Buck Scientific Inc

  • Polyurethane Foam as an Effective Adsorbent for Pesticides in Air (GC Analysis)

    Polyurethane foam (PUF) is a lightweight, easy-to-use material for sampling pesticides in air. Low back pressure allows sampling times and representative samples. A PUF filter cartridge designed to attach to the front of an ORBO-1000 PUF sampling cartridge traps aerosols and particulate matter, is easily and conveniently assembled, and can be removed from the ORBO-1000 cartridge and capped ...


    By MilliporeSigma

  • Low Background Solid Phase Extraction and Capillary GC Analysis of Chlorinated Pesticides

    Solid phase extraction has been the main focus for sample preparation for monitoring semivolatiles, including pesticides, in aqueous hazardous waste samples because it provides rapid, on-site sample preparation and analysis.   Supelco's ENVI-8 polumerically bonded octylsilane-silica packing provides good performance for solid phase extraction of pesticides for aqueous samples.   ...


    By MilliporeSigma

  • Solid Phase Extraction of Pesticides from Fruits and Vegetables, for Analysis by GC or HPLC

    Recovery rates for polar analytes, including carbamate and thiourea pesticides, are higher and less variable with ENVI-Carb carbon-based solid phase extraction tubes than with C8- or C18- silica-based tubes. Independent investigators found ENVI-Carb tubes to be an effective part of sample cleanup for more than 200 organochlorine, organophosphorus, nitrogen-containing, and carbamate pesticides, ...


    By MilliporeSigma

  • Analysis of Pesticides in Lemon Oil Extract Using Deconvolution Software

    The analysis of food for trace levels of pesticides is commonly performed to meet regulatory requirements and ensure product safety. In some instances, a natural product such as lemon oil is used as a flavor enhancer, and the level of pesticides in the enhancer must be ascertained before it can be added to the foodstuff. The analysis of pesticides in natural products can be fairly challenging, ...


  • Analysis of Pesticides in Foods Using Triple Quadrupole LC/MS/MS

    Pesticides are widely used in agricultural products to protect crops from insect infestation during cultivation and product transport. With the heightened concern for food safety, “Positive List System was introduced in Japan on May 29, 2006. These limits ban the sale of food containing pesticides that exceed specified concentrations to ensure the safety of food circulating in the market. ...

  • Analysis of Pesticides in Citrus Oil Using a Shimadzu GCMS-TQ8030

    Contamination of consumer products with pesticides is a growing concern because of recognized adverse health effects, increasing world-wide usage of pesticides, and imports of raw materials from foreign sources. Citrus oils have been used for centuries for a wide range of applications: flavor/fragrance, various medicinal purposes, and others. In recent years, new uses of citrus oils as cleaners ...

  • Analysis of Multi-Pesticide Residues in Vegetables, Food, and Fruits by SPE/GC-MS

    Cleanup of matrices is the first, the most important, and the most critical step for both broad-spectrum screening and accurate determination of pesticides and their metabolites in vegetables,meats, drinks and fruits. In most cases, solid phase extraction (SPE) methods are used to clean up the extracts before the GC-MS analysis. The ideal SPE material(s) should remove the greatest number of food ...


    By MilliporeSigma

  • Analysis of Organophosphorous Pesticides in Produce using Acetonitrile Extraction, Dual-Layer Carbon-Aminopropylsilica Cleanup and GC-NPD Detection

    GC analysis coupled with Nitrogen-Phosphorous detection could selectively detect organophosphorous pesticides with low background in comparison to MS detection. The clean-up protocol using acetonitrile/MgSO4 extraction and dual layer carbon/PSA SPE cleanup resulted in acceptable recoveries for a majority of the pesticides studied. The recoveries were improved by optimizing the toluene content ...


    By MilliporeSigma

  • Analysis of US EPA Method 632 Carbamate and Urea Pesticides Using Ascentis™ C18

    US EPA Method 632 specifies a procedure for the determination of carbamate and urea pesticides in municipal and industrial wastewaters. The suitability of the Ascentis C18 for the separation of the nineteen analytes specified in the method is demonstrated. An Ascentis C18, 25 cm x 4.6 mm I.D., 5 μm particles was used to acheive separation of all compounds, under gradient conditions.  All ...


    By MilliporeSigma

  • Expanded HPLC Method for N-Methyl Carbamates post-column analysis of pesticides in food and potable water samples

    Carbamate pesticides are widely used around the world to protect crops. In addition, they are used as biocides for industrial or other applications and in household products. Though carbamates are biodegradable compounds and bioaccumulation usually happens only to a low extend it is important to monitor produce to make sure enough time has elapsed between harvest and applying pesticides. Also, ...


    By Pickering Laboratories, Inc.

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