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Determination of Pesticide Recovery Rates from Fruit and Vegetables Using QuEChERS Extraction and Bead Mill Homogenization on the Bead Ruptor 24
16 Oct 2014Prior to the QuEChERs extraction of pesticides and analytes, the sample must first be comminuted. The comminuting process can be performed in a number of ways including manual chopping, blending and milling. A more recent approach has been to homogenize the plant material through bead beating. This Application Note evaluates the effectiveness of bead mill homogenization on the Bead Ruptor 24 for multiple pesticide extraction using the QuEChERS AOAC 2007.01 method. The newly designed 50 mL tube carriage for the Bead Ruptor 24 supports simultaneous homogenization of up to three samples in a standard 50 mL polypropylene centrifuge tube and provides sufficient force to homogenize even extremely hard samples such as seeds and roots.
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Shakers, Stirrers and MixersShakers, stirrers and mixers are used for mixing liquids and solids for laboratory applications. There is a wide range of laboratory mixing equipment available, including magnetic stirrers, orbital shakers, linear shakers, microplate shakers, 3D gyratory rockers, rotators & vortexers. Additional platforms and clamps can also be attached to shakers to increase capacity. Find the best shakers, stirrers and mixers in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Solid-Phase ExtractionSolid-phase extraction (SPE) is used for clean-up, extraction and concentration of semi-volatile or non-volatile analytes from complex mixtures including blood, urine and food samples. Multiple formats are available for conducting SPE, including prepacked SPE cartridges, disks and microplates, as well as SPE sorbent powders for manual packing. SPE systems can be used to automate the process and extract multiple samples at once. Solid-phase microextraction (SPME) and supported liquid extraction (SLE) products are also available in the same formats. Find the best SPE, SLE and SPME 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.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. Sample HomogenizerSolid Phase Extraction (SPE)Solid phase extraction (SPE) is a sample preparation technique used to separate and concentrate analytes from complex mixtures. It is widely used in environmental, pharmaceutical, and clinical analysis. SPE provides higher sensitivity and selectivity compared to traditional liquid-liquid extraction methods, making it essential for accurate and reproducible results. Explore SPE tools and systems in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.