“…Analysis of glyphosate and AMPA residues in plant materials first requires an extraction step. Water and acidified water, with shaking or sonication, have been the most commonly used solvents to extract glyphosate and AMPA from diverse plant materials such as watermelon, orange, strawberry, pear, apple, cabbage, cucumber, spinach, potato, tomato, honey, turmeric, chili, coriander, coffee, rice, tea, ginger, coffee senna, hemp sesbania, radish, kidney bean, soybean, soy bean sprouts, soya forage, soy product, corn and corn products, cereal grains, walnut nut meat, tea, Arabidopsis leaves, lilac leaves, grass, quackgrass roots, tree leaves, alfalfa, flowers, shrubs, cattail and vegetable oil (Table ) . Corn, soybean and various forage berry species have also been extracted using water/chloroform, whereas water/methanol (with shaking or sonication) was used for extraction of glyphosate and AMPA from Arabidopsis leaves, maize, peas, barley, flax seed, spinach carrot and straw, and water/acetone (with shaking or sonication) was used to extract wheat and Lolium multiflorum .…”