Highly flexible detection and measurement method for substances in gases and liquids

摘要

Method detects and measures substances quantitatively, in gaseous or dissolved form, using a suitably-matched detection system, based on flow diffusion analysis (FDA). In this method, an acceptor medium flows through a half-cell. This is partially closed by a membrane which permits diffusion. During measurement, the membrane contacts the solution or gas, containing the substances to be determined. Also claimed is the apparatus for carrying out above method. It includes an acceptor solution storage (50; 10, 20, 30, 70), a pump, flow rate control (40, 60) and the diffusion half cell (80). This has a solution chamber and membrane (81) permeable to the substance being determined. There are further detection, evaluation and results display systems.