High Speed GC

Introduction Gas Chromatography ( GC ) is the most widely used analytical technique for the speciation and quantification of organic compounds. The total cost for these analyses is enormous. Protracted sample turnaround times, which are common for contract laboratories, cause expensive bottlenecks. Dramatic reductions in analysis time could lead to significant economic advantages for applications involving environmental and chemical process monitoring. This report considers several emerging technologies that have made high-speed GC (HSGC) practical and useful for …

…column, and kn the retention factor of the last component of interest. As it can be seen from the equation higher gas velocities, shorter columns, and relatively small retention factors can decrease separation times by 1 or 2 orders of magnitude (1). However, there are some disadvantages of HSGC such as: greatly reduced resolution power caused by increased effects of band broadening and reduced peak capacity. Equation 2 shows the peak variance resulting from extra-column source only: ------------------------------------------------------------------------ **Bibliography**