|Title||Surface Corrosion Studies on High-Purity Quartz Vessels for Digestive Sample Preparation|
|Publication Type||Journal Article|
|Year of Publication||2001|
|Authors||M. Ortner, H, Sterkel, S, Knapp, G, Maichin, B, Kettisch, P, Kocsis, L, Mihály, J, Mink, J|
\enspaceHigh purity quartz is the most common material for pressure vessels of high pressure digestion systems. Such systems are in worldwide use especially for matrix decomposition and mineralization procedures with either conventional heating or heating in a microwave field. Usually, the quartz vessels are used for hundreds of decompositions and corrosive attack is often already visible with the bare eye. On the other hand it is well known that adsorption as well as leaching phenomena increase with rising surface roughness of a material. This is especially critical in trace and ultratrace work. For the latter such interactions with the vessel wall might even become the limiting factor in ultratrace determinations at the ng/g-level and below.