Increasing concern over the health effects of residual pesticides on fruits and vegetables has led to increased testing of these products to determine the levels of pesticides on produce when it goes to market. In this study, commercial red wine and beer samples were examined for their pesticide concentrations. In addition to the examination of the finished alcoholic beverage, the constituent agriculture products of wine a beer production: grains, malts hops and wine grapes; were also examined to determine the levels of pesticides found in those products. The sample preparation and extraction process efficiency and recovery were examined by processing samples using manual versus high-throughput techniques. The QuEChERS method was used to process a greater number of samples in a shorter period of time than other extraction methods.  The combination of QuEChERS techniques and high-throughput techniques increased the overall efficiency and recovery of the targeted pesticides by up to 35%.

Sample preparation and analysis of beer, wine, and constituent components (i.e., hops, grains, malt, and grapes) for pesticides using QuEChERS and high-throughput techniques to maximize efficiency and recovery

248th National Meeting (2014)

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