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Updated: Aug 25, 2026

A Synthetic Methodology for Preparing Impregnated and Grafted Amine-Based Silica Composites for Carbon Capture
Published on: September 29, 2023
Total digestion of silicate containing matrices (plants, soil, sludges) using a pressure ashing device with
P Schramel1, I Wendler, G Knapp
1GSF-Research Center for Environment and Health, Institute for Ecological Chemistry Neuherberg, D-85758, Oberschleissheim, Germany.
Abstract:
A digestion procedure for silicate containing matrices like soil, sludge, etc. by using a commercially available pressure ashing device (Seif-Aufschlubetatechnik, 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(R)-(PTFE, polytetrafluoroethylene) vessels and the open treatment in Pt-crucibles will be discussed.

