On-line purge and trap GC-MS for monitoring 1,3-dichloropropene in agricultural water and soil samples.

Trace-level determination of 1,4-dioxane in water by isotopic dilution GC and GC-MS.

The volatile and polar solvent 1,4-dioxane has recently been reported as a contaminant of ground and surface waters, establishing the need to determine this substance in drinking water. This investigation established that 1,4-dioxane can be determined in water by various techniques including direct aqueous injection (DAI) gas chromatography (GC) and purge and trap GC-mass spectrometry (MS). Pur...

Analysis of High Concentrations of MTBE and BTEX in Soil and Solid Waste Samples

The FROG-4000TM Portable GC System Weighing less than 5 pounds, the FROG4000TM (shown in Figure 1) is the smallest portable GC system on the market today. The FROGTM uses MEMS components and designer nanomaterials to deliver the same detection capabilities of a traditional bench top GC system but at a fraction of the cost and size. The FROG-4000TM is equipped with a purge-and-trap system for an...

Analysis of High Concentrations of MTBE and BTEX in Soil and Solid Waste Samples

D company The FROG-4000TM Portable GC System Weighing less than 5 pounds, the FROG4000TM (shown in Figure 1) is the smallest portable GC system on the market today. The FROGTM uses MEMS components and designer nanomaterials to deliver the same detection capabilities of a traditional bench top GC system but at a fraction of the cost and size. The FROG-4000TM is equipped with a purge-and-trap sys...

Techniques for Optimizing the Analysis of Volatile Organic Compounds in Water Using Purge-and-Trap/GC/MS Application

The analysis of volatile organic compounds in water is normally accomplished by purge-and-trap/gas chromatography/mass spectrometry. U.S. EPA Method 8260B with purge and trap sample introduction is widely used for the analysis of aqueous samples other than drinking water. This application note discusses problems that can arise and some easy solutions for them. These techniques have resulted in ...

Quantitation Reference Compounds and VOC Recoveries from Soils By Purge-and-Trap GC/MS