Abstract
This application note illustrates a sensitive method used to analyze semivolatile organic compounds (SVOCs) on an Agilent 7000E triple quadrupole GC/MS system
(GC/TQ). The use of GC/TQ instrumentation for analysis of SVOCs offers significant advantages. High selectivity afforded by multiple reaction monitoring (MRM) mode
results in faster batch review and increased confidence due to the elimination of matrix interferences. These interferences are often present when using selective
ion monitoring (SIM) or scan acquisition modes. Increased sensitivity can facilitate smaller extraction volumes that improve sustainability, reduce waste, and decrease costs associated with sample preparation, solvent usage, and waste disposal. A primary objective of this work was to demonstrate the ability of a GC/TQ to detect SVOCs at low levels to meet these laboratory needs while maintaining an excellent dynamic range.
IntroductionThe analysis of SVOCs can be challenging as there is a wide variety of target analytes that include bases, neutrals, and acids. These analytes span a wide range of molecular weights and boiling points. The United States Environmental Protection Agency (US EPA) has issued regulations and guidelines in Method 8270E for the analysis of these analytes by GC/TQ. Typical samples that are analyzed for SVOCs include surface or ground water as well as solid samples. These samples are then extracted before analysis. If method sensitivity can be improved,there is an opportunity to reduce sample and extract volumes that can result in decreased costs and increased lab sustainability. A preferable analytical method can also demonstrate a widedynamic range to reduce the need for sample dilution and reanalysis
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