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D. HILTON and B. Shofran. LECO Corporation, 14950 Technology Ct, Fort Myers, FL 33908 New technology comes along every few years offering potential advances in method performance. Evaluation of the real analytical benefits and determining the limitations is a vital aspect of industry's adoption of such technology into mainstream analytical usage. Time of Flight Mass Spectrometry and GCxGC are two such technologies that have been introduced to the modern gas chromatography laboratory over the past five years, becoming available from numerous vendors. The intrinsic value of these technologies must be reviewed for critical performance benchmarks necessary for full functionality in today's GC laboratory. Our objective was to demonstrate increased analytical capability by the application of TOFMS and GCxGC-TOFMS to the analysis of citrus oils. In this study, an existing GC-MS (quadruple) method for profiling orange oil was transferred to GC-TOFMS and to GCxGC-TOFMS and optimized for use with each of these technologies. Linearity, sensitivity, and spectral quality were explored. Results of analysis using the new technologies were compared against results obtained from the original analytical procedure, run on the original instrument. The modified method was applied to other citrus oils to demonstrate generality. With the use of these new technologies, profiles may be performed faster with similar or increased information available about the sample. Alternatively, a profile may be performed in greater detail, without increased analysis time.
Session 41, Citrus and flavors
2005 IFT Annual Meeting, July 15-20 - New Orleans, Louisiana |