8Guidelines Establishing Test Procedures for the Analysis of Pollutants;Proposed Regulation,Federal Register,December,3,1997,44(No,233,PartⅢ,Purgeable Halohydrocarbons Method 601).69468-69473.
9Volatile Organic Compound s by Gas Chromatography/Mass Spectrometry(GC/M S)[S].U.S.EPA Method 8260B.Revision2.U.S:EPA,Deeember 1996.
10Purge-and-Trap f or Aqueous Samples[S].U.S.EPA Method 5030B.Revision2.U.S.:EPA.December 1996.