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Application Note 108

Optimisation of TD methods to minimise carryover of semi-volatiles during direct desorption of a polymer

Application Note 108

Carryover, defined as incomplete transfer of an analyte through the thermal desorption (TD) flowpath in a single analytical cycle, leads to errors in quantitative analysis, poor reproducibility, and interference in subsequent chromatographic runs.

This application note demonstrates the exceptionally low levels of carryover achievable for the semi-volatile organic compound caprolactam when carrying out direct desorption of polyamide pellets with Markes International’s TD-100™ automated thermal desorber.

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