1. Evaluation of clean-up methods for the determination of chlorinated aromatic hydrocarbons in fly-ashes by capillary gas chromatography and mass-selective detection;Kleinveld;Chemosphere,1988
2. Sample preparation for determination of PCDDs and PCDFs in eel and human milk by GC-MS;Liem;Water Pollution Research Report Series,1988
3. Interlaboratory validation of results from the determination of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in municipal stack gas samples;O'Keefe,1987
4. The WHO/EURO quality control study on PCDDs and PCDFs in human milk;Tarkowski,1987
5. A modified clean-up procedure for the determination of PCDDs in soil samples;Wegman;Chemosphere,1986