Microsystem for flow injection analysis for environmental control

Flow injection analysis systems are often used to enhance the performance of chemical sensors. To reduce the liquid consumption of such a system microtechniques offer many possibilities. There are two classes of microanalytical systems: systems consisting of highly selective chemical sensors in combination with fluidic elements using the flow injection principle and systems using separation techniques and a non-selective detector. Both possibilities were studied by different research groups. More work deals with systems using separation (liquid chromatography, capillary electrophoresis) than with microanalytical systems using chemical microsensors and micropumps. In this poster concepts and results of the German joint research project "Integrated Micro Analysis System - IMAS" are demonstrated. The concept is based on a miniaturized flow injection analysis scheme.