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|Articles|May 17, 2012

Column

  • The Column-05-17-2012
  • Volume 8
  • Issue 9

Data Processing with Comprehensive GC×GC(qMS)

Comprehensive GC×GC(MS) and LC×LC(MS) are chromatographic hyphenation methods providing the users with extremely large peak capacities.

Comprehensive GC×GC(MS) and LC×LC(MS) are chromatographic hyphenation methods providing the users with extremely large peak capacities. This article describes the data processing of data acquired with comprehensive GC×GC(qMS) using ChromSquare software and the GCMS-QP2010 Ultra high-speed quadrupole with up to 100 spectra/sec and a maximum scanning speed of 20 000 amu/sec.

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Figure 2. Split injection used to measure triplicate test of MTBE, hexane, o-xylene, and 1-methylnaphthalene comparing different solvents (methanol, methylene chloride) and column insertion distances starting with 0.5 mm, 5.0 mm, 10.0 mm, 15 mm, and 20.0 mm. Methanol had the best performance at the 5.0 mm insertion distance and methylene chloride looked slightly better at the 0.5 mm. We would still recommend not going below the 5.0 mm manufacturer recommended insertion distance.
Revisiting Column Insertion Distance
Revisiting insertion distance for methanol and methylene chloride in GC analysis and confirming that insertion depth strongly affects response and reproducibility.
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