Measuring Herbicide Residue in Oat-Based Food Products

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<figure class="nist-image"> <img src="/web/20230212125709im_/https://www.nist.gov/sites/default/files/styles/480_x_480_limit/public/images/2023/01/30/8238_8239.jpg?itok=CalEl-zp" width="149" height="198" alt="Glyphosate in Oat Flour" loading="lazy" typeof="foaf:Image"/> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> </div> </figcaption> </figure> </div> <p><span><span><span><span><span>The Environmental Protection Agency (EPA) establishes tolerances for pesticide and herbicide residues in food that are still considered safe for consumption. 聽For food manufacturers to test their products a reference material is recommended to ensure their measurements are accurate. 聽Oats are of particular interest as the herbicide, glyphosate, is used as a desiccant to dry out the crop before harvest. 聽This allows for earlier harvests and greater uniformity of crops. 聽Consequently, glyphosate is typically found at higher levels than other herbicides.</span></span></span></span></span></p> <p><span><span><span><span><span>The reference materials are oat flour obtained from commercial sources. 聽The level of glyphosate in the RM 8238 (high level) was targeted to represent typical glyphosate levels found in oats from conventional agriculture practices. 聽The level of glyphosate in RM 8239 (low level) was targeted to represent typical glyphosate levels found in oats from organic agriculture practices, yet high enough to detect by current glyphosate analytical methods 聽These materials are intended for harmonizing measurements of glyphosate in grains and similar materials.</span></span></span></span></span></p> <p><span><span><span><span><span>A unit of RM 8238 or 8239 consists of one bottle of oat flour. 聽Each bottle contains approximately 100 g of material.</span></span></span></span></span></p> </div> </div> <div class="nist-block">  <div data-elastic-exclude="" class="nist-tags"> <a 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Measuring Herbicide Residue in Oat-Based Food Products | NIST