Applications of Supercritical Fluids in Industrial Analysis by J.R. Dean

By J.R. Dean

the continuing look for quick, effective and low cost technique of analytical dimension has brought supercritical fluids into the sector of analytical chemistry. components are universal: supercritical fluid chroma­ tography and supercritical fluid extraction. either search to use the original houses of a gasoline at temperatures and pressures above the severe aspect. the commonest supercritical fluid is carbon dioxide, hired as a result of its low serious temperature (31 °C), inertness, purity, non-toxicity and cheapness. substitute supercritical fluids also are used and sometimes together with modifiers. The mixed gas-like mass move and liquid-like solvating features were used for greater chroma­ tographic separation and speedier pattern practise. Supercritical fluid chromatography (SFC) is complementary to fuel chro­ matography ( GC) and excessive functionality liquid chromatography (HPLC), supplying greater potency than HPLC, including the power to examine thermally labile and excessive molecular weight analytes. either packed and open tubular columns may be hired, offering the aptitude to examine quite a lot of pattern kinds. additionally, flame ionization detection can be utilized, hence offering 'universal' detection.

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