Coloured Molecules within Nanopores

A word ¿indicator¿ is familiar to everyone - it is applied to any device capable of giving out some information about a process or an object. However, in chemistry, more precisely, in analytical chemistry, this term is used quite in a certain sense. The ¿litmus paper¿ is well-known as a source of information about liquid solutions of bases and acids. The author of this book deals with colour indicators of the ambient gas components. Those indicators are based not on the paper but on the throughout nanoporous transparent glass permeable to the molecules arriving from the gas ambience. Basic ideas are elucidated and discussed as well as prototype sensors of the gas analyzers for use in monitoring of the atmosphere and technological gas media.