Determination of halogen traces in organic matrices by photon activation

摘要

The contents of chlorine, bromine and iodine in organic matrices were determined by photon activation analysis. The electron energy of the electron linear accelerator was varied to determine the optimum conditions to suppress activation of the matrix element carbon. In order to develop a reference material for the analysis of pentachlorophenol (PCP) in wood, the over-all chlorine contents, which are the sum parameters of organic and inorganic chlorine, were analysed and compared with chlorine due to PCP. Chlorine, bromine and iodine in used oils were determined with resepct to the legal limit of 2000 umg/g, above which the oils have to be treated as special waste according to German law.