3C. A. Kang,M. R. Kim,J. Y. Shen,I. K. Cho,B. J. Park,I. S. Kim,J. H. Shim. Supercritical Fluid Extraction for Liquid Chromatographic Determination of Pyrazosulfuron-Ethyl in Soils[J] 2006,Bulletin of Environmental Contamination and Toxicology(5):745~751