TY - JOUR A1 - Krüger, Oliver A1 - Adam, Christian A1 - Hobohm, J. A1 - Basu, S. A1 - Kuchta, K. A1 - van Wasen, Sebastian T1 - Recycling oriented comparison of mercury distribution in new and spent fluorescent lamps and their potential risk T2 - Chemosphere N2 - This study compares the mercury distribution in the vapor phase, the phosphor powder and the glass matrix of new and spent fluorescent lamps. The spent fluorescent lamps were obtained at the collection yards of a public waste management company in Hamburg, Germany. An innovative systematic sampling method is utilized to collect six spent and eight corresponding new, off-the-shelf fluorescent lamp samples. The efficiency of several acid digestion methods for the determination of the elemental composition was studied and elemental mass fractions of K, Na, Y, Ca, Ba, Eu, Al, Pb, Mg, Hg, and P were measured. The study also finds aqua regia to be the best reagent for acid digestion. However, no significant difference in mercury distribution was found in the different phases of the new and spent fluorescent lamps. PB - Elsevier KW - Mercury KW - Rare earth elements KW - Hg distribution KW - Fluorescence lamps PY - 2017 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/38481 AN - OPUS4-38481 SN - 0045-6535 SN - 1879-1298 VL - 169 SP - 618 EP - 626 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany