Use of a Series of Parallel Heartcut Reservoirs Traps

Parallel traps are used to store successive heart-cut fractions prior to subsequent analysis. These might be liquid-phase loops (HPLC) or cryogenic traps (GC; Figure 3B). An array of packed cryogenically cooled traps may be used to collect selected fractions of heart-cut effluent from a capillary GC pre-column. The individual traps are then eluted into a second analytical capillary column, chosen for particular suitability to the required analysis. The effluent from the analytical column may then be split to different detectors, and the use of mass spectrometry/flame ionization detector and FTIR has been described, with FTIR receiving the larger flow due to its less favourable detection sensitivity. This procedure has been demonstrated with petroleum samples, where

FTIR is most advantageously used for isomers of compounds such as the xylenes. However, the complications arising from multiple trap management will reduce its attraction for many analysts.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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