Chromatography is an analytical technique employed for purification and separation of organic and inorganic substances including characterisation and quantitative measurement of compounds (table). Basically there are two types: l. Gas chromatography (GC), 2. Liquid chromatography (LC). Although discovered in 1906 by Tshett, developed in the 1950s as the GC technique where the mobile phase are g...

Triethylamine (TEA) is an organic compound that commonly used in industries, but its volatile, inflammable, corrosive, and toxic nature leads to explosions tissue damage. A sensitive, accurate, situ monitoring of TEA great significance production safety human health. Metal oxide semiconductors (MOSs) are widely as gas sensors for volatile compounds due their high bandgap unique microstructure. ...