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2008 vol. 1
Environmental
GC/MS SIM Analysis with the
New
Rxi®-5Sil MS Column
By Robert Freeman, Environmental Innovations Chemist
• Excellent linearity across a broad calibration range.
• Ideal for trace level analyses.
• Low bleed at high temperatures, for better overall response and lower detection limits.
Polycyclic aromatic hydrocarbons (PAHs) are common environmental pollutants, affecting air, water,
and soil quality. Although naturally occurring, human impact has created a steady increase in environmental
levels of PAHs and their byproducts. PAHs are typically formed through the incomplete combustion of
organic materials, such as wood, coal, and oil, but are also used in manufacturing of some medicines, plastics,
and pesticides. Many chromatographic methods are available to analyze these pollutants. Laboratories
performing low-level PAH analyses often utilize the single ion monitoring (SIM) function of GC/MS
because of the sensitivity required to achieve typical regulatory or monitoring levels.
Continued on page 4.
Accurately Quantify
PAHs Down to
5pg On-Column