Airborne Concentration of Toxaphene Congeners at Point Petre Ontario using Gas Chromatography-Electron Capture Negative Ion Mass Spectrometry (GC-ECNIMS) and Multidimensional Gas Chromatography-Electron Capture Detection (MDGC-ECC) Publication Attachment: 97-325.pdf Authors: Shoelb, M, Brice, KA, Hoff, RM Year: 1997