APPLICATION


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Trace Analysis of Rare Gases in Air with smartGC-infiTOF

In general, GC and GC-MS are used for trace impurity analysis of gaseous samples. However, using standard GC to measure trace levels of Ne impurities in gaseous samples is difficult.

In this application note, we report on the use of our smartGC-infiTOF for measuring trace amounts of Ne (18.18 ppm), Kr (1.14 ppm), and Xe (0.087 ppm) in the air.
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Detection and Identification of Trace components in the Air Using smartGC-infiTOF

For trace impurity analysis of gas samples, conventional detection methods use GC and GC-MS. When unknown impurities are detected, identification is usually attempted in the following manner:
1) Search for a matching retention time in a database that compares parameters such as column type and length, flow rate, and temperature.
2) Measure a standard gas sample of the suspected substance under the same conditions and compare the retention time and mass spectrum against the unknown substance.
3) Estimate the identity using the mass spectral fragment pattern.
Here, we report on using the high-resolution/high mass accuracy of the infiTOF to identify the unknown impurity measured in an air sample by our smartGC-infiTOF system.
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