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COMPARATIVE ANALYSIS OF DIOXINS AND FURANS BY HIGH RESOLUTION AND ELECTRON CAPTURE MASS SPECTROMETRY
Citation:
Koester, C., R. Harless, AND R. Hites. COMPARATIVE ANALYSIS OF DIOXINS AND FURANS BY HIGH RESOLUTION AND ELECTRON CAPTURE MASS SPECTROMETRY. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-92/264.
Description:
Known mixtures and unknown atmospheric sample extracts containing polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/P) were analyzed by both electron impact, high resolution, mass spectrometry (HRMS) and by electron capture, negative ion, low resolution mass spectrometry (ECNI). CDD/F concentrations measured by the two methods were comparable, typically agreeing within +/- 33%. he major difference between the two techniques is that easily detects 2,3,7,8-tetrachlorodibenzo-p-dioxin but ECNI does not. esults suggest that ECNI can be a sensitive low cost alternative to for the determination of PCDD/F concentrations.