... Agency (USEPA) and AOAC. USEPA methods 356 0, 356 1, and 356 2 use supercritical CO2for the extrac-tion of pesticides from environmental matrices such as soil, sediment, and sludge, and AOAC 2002.03 ... ni⋅ViCH32 11 25 2 250 33 .5 67CH230 1180 354 00 16.1 483CH 1 820 820 –1 –1HC= 4 1030 4120 13 .5 54OH 1 7120 7120 10 10COO 2 4300 8600 18 36COOH 0 6600 0 28 .5 0Σ ni⋅Ui= 58 310 Σ ni⋅Vi= ... R.J., and Allington, R.W., U.S. Patent 5, 653 ,8 85 (1997).27. Allington, R.W., Walters, H.L., Jameson, D.G., and Tehrani, Y., U.S. Patent 5, 614,089(1997).28. Jameson, D.G., U.S. Patent 5, 584,989...