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Time-of-Flight Mass Spectrometer

Wed, 03/20/2013 - 5:05pm

AccuTOF-GCv 4GJEOL has introduced the AccuTOF-GCv 4G, a time-of-flight mass spectrometer that features high sensitivity (SN > 100 at OFN 1 pg/uL). High resolution and mass accuracy allow for rapid elemental composition determination and target compound identification. The 4G acquires up to 50 averaged spectra per second with mass resolving power of 8,000 FWHM and high mass accuracy, and is compatible with commercially available 2D GC systems for GCxGC/EI and GCxGC/FI. A fast ADC converter with high linear dynamic range makes the 4G suited to analyzing complex mixtures of true unknowns—even at low concentrations.

The 4G is designed for optimum throughput, operation, and uptime. An optional combination EI/FI/FD ion source eliminates the need for source exchange, and provides library-searchable EI mass spectra and molecular weight information from the FI mass spectra. Although an optional CI source is available, FI does not require a reagent gas for molecular ion determination. GC/FI can also be used to characterize samples difficult to analyze by other techniques, such as unsubstituted alkanes.

JEOL USA, www.jeolusa.com

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