Omvandlingskolv

摘要

An improved apparatus and method for the sequential performance of chemical processes on a sample of chemical material wherein the sample is embedded in a solid matrix (194) of fluid permeable material, eg polymer material, located within a reaction chamber and is sequentially subjected to a plurality of fluids passed through the chamber in a pressurized stream, causing chemical interaction between the sample and the fluids. The matrix may be supported on a porous layer (190) across the chamber or may be applied to the chamber walls. Also described are a system for automatically performing sequential degradation analysis of protein or peptide chains and valve means (comprising a valve block (182) having a plurality of membrane- operated valve sites (78-82)) and a conversion flask for use in such a system.