How sample mass and particle size affects the uncertainty of your analytical measurements

Category : 2014
Tags : food safety, training, regulation, agencies, sampling, quality, data

November 5, 2014

Jo Marie Cook, Florida Department of Agriculture and Consumer Services

Jo Marie Cook

Jo Marie Cook received her degree in chemistry from Michigan State University and has been working in food safety for over 30 years. She has been Bureau Chief for the Florida Department of Agriculture and Consumer Services since 2005. With a staff of 30 scientists and 7 field inspectors, the Bureau conducts sampling and trace level analyses of pesticides in fruits and vegetables for regulatory enforcement of federal pesticide regulations and for the USDA Pesticide Data Program.

In response to the Food Safety Modernization Act, federal and state agencies across the U.S. are developing criteria for sharing food and feed safety regulatory data. Guidance and training is needed to provide accuracy of food/feed sampling activities supporting regulatory programs and consistency in sampling protocols among agencies. This presentation will explore what is known about sampling quality, what available data can be used to estimate the error in sampling, what quality control should be added to sampling programs to estimate sampling error and recommendations for the future.

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