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Application Note 125

Flavour profiling of premium teas using HiSorb sorptive extraction and TD–GC–MS

Application Note 125

This application note compares the flavour profiles of three premium teas, obtained by high-capacity sorptive extraction using PDMS probes, with analysis by thermal desorption (TD)–GC–MS.

The ability of the system to sample analytes from a range of chemical classes and volatilities is demonstrated.

The high-capacity PDMS phase results in higher sample loadings than SPME methods, and (combined with Markes’ TD preconcentration technology) offers greater sensitivity across a wider analyte range, in a single run. A further benefit is provided by the unique capability of Markes’ instruments to re-collect all split flows, allowing repeat analysis for sample security, method optimisation and characterisation by alternative detection methods.

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