Sample Preparation
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Fast Screening of Recalled Tylenol® for Tribromoanisole and Related Adulterants Using QuEChERS and GC-TOFMS
Screening methods for consumer product adulteration cases, such as the recent Tylenol recall, can benefit from fast QuEChERS-based sample preparation and sensitive, full mass-range GC/TOF-MS.
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QuEChERS Products: Fast, Simple Sample Prep for Multiresidue Pesticide Analysis
Learn how to use the QuEChERS approach to perform faster, easier sample preparation and cleanup for multiresidue pesticide analysis. Q-sep™ QuEChERS products save time, money, and materials compared to modified Luke methods. (PDF - 1276kB)
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Determining Pesticides in Dietary Supplements with QuEChERS Extraction, Cartridge SPE, and GCxGC-TOFMS
The novel approach used here combines QuEChERS extraction, cartridge SPE cleanup, and GCxGC-TOFMS analysis, resulting in good recoveries for a wide range of pesticides in dietary supplements. Matrices include dandelion root, sage, and a multi-herb finished product.
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Faster Extraction and Cleanup of Pesticide Residue Samples
If you are frustrated by the time and cost involved with pesticide sample cleanup, we suggest you try the simple and economical QuEChERS method. Follow this approach to remove sugars, lipids, organic acids, sterols, proteins, pigments, and excess water, any of which often are present. To make your work even simpler, we offer QuEChERS extraction products in a variety of standard sizes and formats, and custom products by request.
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Developing New Methods for Pesticides in Dietary Supplements
QuEChERS is a simple, effective approach to sample prep that can be applied to the analysis of pesticides in dietary supplements. Here we demonstrate a QuEChERS, cSPE, GC-TOFMS procedure that results in good recoveries for a wide range of pesticides in dandelion root. (PDF - 5523kB)
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Q-sep™ New Product Supplement
QuEChERS solid phase extraction cartridges. SPE tubes, columns, and reference standards for fast, simple extraction, cleanup, and analysis of pesticide residue samples. Designed for AOAC and European methods. (PDF - 123kB)
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Fast, Simple QuEChERS Extraction and Cleanup of Pesticide Residue Samples
QuEChERS dSPE methods simplify extract cleanup, reduce material costs, and improve sample throughput. Here we demonstrate the effectiveness of QuEChERS sample cleanup using a multiresidue analysis of pesticides on strawberries. (PDF - 158kB)
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