Markes International, Ltd. | Authors


Measuring PFAS Pollution in Ambient Air

A demonstration of how TD–GC–MS/MS enables measurement of per- and polyfluoroalkyl substances (PFAS) in air at concentrations as low as 2 pg/m3.

Understanding and Identifying Hydrogen Fuel Impurities

Tue, Aug 9, 2022 11:00 AM EDT In this webinar, we explain how to analyse a wide range of volatile organic impurities from hydrogen fuel in a single run using “hydrogen-certified” thermal desorption with GC–MS and specific detectors ( SCD), complying with relevant global standards. Thanks to optimised preconcentration technology, the technique has proven to be more sensitive than alternative techniques and systems, while the ability to run both on-line and off-line samples gives ultimate flexibility to the analyst.

Identification of Impurities in Hydrogen Fuel Supplies

Identification of impurities in hydrogen fuel supplies was demonstrated using an on-line thermal desorption–GC–MS system, which complied with various standard methods.

Headspace Sampling for Flavour Profiling of Foods and Beverages

Using high-capacity sorptive extraction with TD–GC–MS analysis for flavour profiling of cider and potato chips, contrasting unflavoured and flavoured-added products

Analysis of Trace PFAS Vapours in Air

Sampling and analysis of a challenging range of trace-level volatile & semi-volatile vapours of per- & polyfluorinated alkyl substances (PFAS) in air using TD–GC–MS