Total digestion of silicate containing matrices (plants,soil, sludges) using a pressure ashing device with PFA-vessels |
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| Authors: | P Schramel I Wendler G Knapp |
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| Institution: | (1) GSF–Research Center for Environment and Health, Institute for Ecological Chemistry Neuherberg, D-85758 Oberschleißheim, Germany;(2) Institute for Analytical Chemistry, Micro- and Radiochemistry, Technical University Graz, A-8010 Graz, Austria |
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| Abstract: | A digestion procedure for silicate containing matrices like soil, sludge, etc. by using a commercially available pressure ashing device (Seif-Aufschlu technik, Germany) with PFA (perfluoroalkoxy) sample vessels is described at the results for different matrix- and trace elements in different suitable certified standard reference materials. The advantages of this technique compared with the use of Teflon®-(PTFE, polytetrafluoroethylene) vessels and the open treatment in Pt-crucibles will be discussed. |
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