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The goal of this study was to omit the hazardous hydrofluoric acid for silica removal before fusion of barite-concrete. Furthermore, the goal was to establish a chemical separation technique to simultaneously determine the activity concentrations of 241Am, 238Pu, 239+240Pu and 90Sr of one sub-sample. After the fusion process, using Li-metaborate/Li-tetraborate, the colloidal silica could be successfully flocculated using polyethylene glycol (PEG-2000). A chemical separation scheme using the resins DGA—BIO-RAD AG 1-X2/UTEVA—DGA and TEVA for the actinides and DGA and Sr resin for Sr was successfully established, underlined by the quantitative 243Am, 242Pu and 85Sr average tracer recoveries of at least 60%, and in best cases up to 86%.

During decommissioning of nuclear facilities, possibly contaminated asbestos containing materials (ACM) emerge. In this work, we propose an analytical method to characterize ACM contaminated with alpha and beta nuclides by microscopic (light and electron microscopy) and radioanalytical techniques. For this purpose, a chromatographic separation is applied after decomposition of ACM by a lithium borate fusion at 1065 °C. The subsequent separation is performed with UTEVA-TRU-Sr chromatographic resins. Recovery rates for analyzed radionuclides were on an average of 80–90% for Am, Cm, Pu isotopes, and Sr-90. Compared to sample pre-treatment with hydrofluoric acid, the lithium borate fusion proves more suitable, while providing higher working safety.

Interview with the novelist and biologist Mia Couto in which he discusses Cecil the lion and 40 years of Mozambican independence. qot

Interview with the 50-year-old South Korean author Kyung-Sook Shin in which she discusses her work and career.

Interview with the London-based, Chinese film-maker and fiction writer Xiaolu Guo (b.1973) on the release of her new book \"I Am China\", which charts the dark aftermath of Tiananmen Square through the story of a punk rocker in Beijing and his poet lover. (Quotes from original text)

Interview with Adonis, the greatest living poet of the Arab world. Discusses his 70-year career as a poet, critic and essayist.

Interview with Spanish novelist and writer Javier Cercas, discussing his life and career, and his award-winning 2009 non-fiction book \"The Anatomy of a Moment\".

Interview with Akram Khan, one of Britain's most feted dancer-choreographers, discussing his life and career, his dance company, and his new work, \"Vertical Road\".

Interview with Juan Gabriel Vásquez, who is among the most inventive and erudite of Colombia's emerging generation of novelists, discussing his life and career. (Quotes from original text)