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Performance of Method 8270 Using Hydrogen Carrier Gas on Bruker SCION GC-MS
Poster Presentation
Prepared by E. George
Bruker Daltonics, Inc.u, 3500 West Warren Avenue, Fremont, CA, 94538
Contact Information: ed.george@bruker.com; 510-683-4315
ABSTRACT
USEPA Method 8270 for semivolatiles is used by laboratories to measure a mixture of acids, bases, and neutrals in a wide variety of matrices. Sample extracts can range from clean water to sludge coming from superfund clean-up sites. The complexity of these extracts combined with the increased sensitivity of newer GC/MS systems (lower reporting limits) demand a robust instrument that is easy to operate and maintain.
Adding to method complexity is the uncertainty in both cost and supply of helium, forcing some laboratories to consider hydrogen as carrier gas. Hydrogen is not an inert gas- it is reactive and can be an explosion hazard if allowed to build up in either the GC oven or manifold of a mass spectrometer. The Bruker SCION GC-MS Hydrogen Carrier Package will ensure safe routine operation, with little or no performance change for EPA Method 8270. A unique axial ion source design provides excellent robust operation and minimizes unwanted protonation and spectral distortions. In addition, the Gas Chromatograph with Bruker Split/Splitless (SSL) injector and inert pathway prevent compound degradation and reactions with hydrogen.
Poster Presentation
Prepared by E. George
Bruker Daltonics, Inc.u, 3500 West Warren Avenue, Fremont, CA, 94538
Contact Information: ed.george@bruker.com; 510-683-4315
ABSTRACT
USEPA Method 8270 for semivolatiles is used by laboratories to measure a mixture of acids, bases, and neutrals in a wide variety of matrices. Sample extracts can range from clean water to sludge coming from superfund clean-up sites. The complexity of these extracts combined with the increased sensitivity of newer GC/MS systems (lower reporting limits) demand a robust instrument that is easy to operate and maintain.
Adding to method complexity is the uncertainty in both cost and supply of helium, forcing some laboratories to consider hydrogen as carrier gas. Hydrogen is not an inert gas- it is reactive and can be an explosion hazard if allowed to build up in either the GC oven or manifold of a mass spectrometer. The Bruker SCION GC-MS Hydrogen Carrier Package will ensure safe routine operation, with little or no performance change for EPA Method 8270. A unique axial ion source design provides excellent robust operation and minimizes unwanted protonation and spectral distortions. In addition, the Gas Chromatograph with Bruker Split/Splitless (SSL) injector and inert pathway prevent compound degradation and reactions with hydrogen.