Markes International, Ltd.

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.

Wednesday 19th October 2022 at 9am EDT | 2pm BST | 3pm CEST Join this webinar from Markes International to hear Dr. Ariel Geer Wallace from the US EPA discuss her research into methods of PFAS destruction, and the technology she is using to benchmark the effectiveness of thermal treatment techniques.

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 was demonstrated using an on-line thermal desorption–GC–MS system, which complied with various standard methods.

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

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

Using sorptive extraction to extract aroma compounds from honey, with automated statistical analysis to uncover differences and determine markers of authenticity

Demonstrating how a Markes Multi-Gas TD can operate with hydrogen carrier gas as well as it does with helium to meet all the criteria cited in US EPA Method TO-17

The complementary roles of dynamic headspace and sorptive extraction in the analysis of fragranced consumer products using TD–GC–MS 

Analysis of VOC and FOG emissions from automotive interior materials by direct desorption TD–GC–MS in accordance with VDA 278

An application note demonstrating the quantitative analysis of microplastics using direct thermal desorption (TD) combined with GC–MS

A study describing the advantages of using tube-based thermal desorption for monitoring chemical warfare agents at ultratrace levels

Application note discussing innovative cryogen-free ambient air monitoring in compliance with US EPA Method TO-15

Application describing the use of hydrogen carrier gas to enhance TD–GC–MS methods for semi- SVOCs in air: an illustration with polyaromatic hydrocarbons (PAHs)

Detailing how thermal desorption GC–MS can be used to monitor the release of PFAS during the application of aqueous film-forming foam

Automated cryogen-free monitoring of “air toxics” in ambient air using tube-based TD–GC–MS in accordance with US EPA Method TO‑17

Providing guidance for optimizing the analytical performance of sorbent tube sampling and thermal desorption–GC–MS for disease diagnosis via breath and bio-monitoring.

Wednesday, June 30, 2021 at 11am EDT | 8am PDT | 4pm BST | 5pm CEST

*Live: Friday, June 18, 2021 at 1pm BST| 8am EDT* A special one-day symposium —chaired by Jared Anderson, a key opinion leader in the field of sample preparation and a member of the LCGC’s Editorial Advisory Board (EAB) — will highlight state-of-the art advances in sample preparation and will cover a wide range of topics *On Demand Until June 18, 2022*

Detailing how thermal desorption GC–MS can be used to monitor the release of PFAS during the application of aqueous film-forming foam

This application note demonstrates the quantitative analysis of microplastics using direct thermal desorption (TD) combined GC–MS.

***Live: Monday, November 23, 2020 at 9am EST| 2pm GMT| 3pm CET***What can your microplastics sample tell you? Learn how thermal desorption coupled with GC-MS provides a straightforward method for measuring microplastics and provides a chemical fingerprint rich in information about the source and original use of the plastics and their journey through the environment. ***On demand available after final airing until Nov. 23, 2021***

This application note demonstrates the quantitative analysis of microplastics using direct thermal desorption (TD) combined GC–MS.

Monitoring of potentially harmful VOCs and SVOCs emitted from respiratory medical devices, in accordance with the ISO 18562 standard.

A comprehensive guide to assessing the odour profiles of products and materials using thermal desorption.

Using TD with GC–MS to analyse microplastic samples, detailing the analysis of bottled beverages to measure the leaching of PET from the plastic bottle into the beverage.

A comprehensive guide to the use of thermal desorption to assess chemical emissions from construction materials and consumer products.

The complementary roles of dynamic headspace and sorptive extraction in the analysis of fragranced consumer products using TD–GC–MS.

The use of high-capacity sorptive extraction with multi-step enrichment, for enhancing the analysis of VOCs, that contribute to the aroma & flavor of breakfast cereals

Are you using sample preparation techniques effectively in your HPLC and GC methods? Are you aware of the latest advances in sample preparation? Join us for this informative web seminar to learn more about how to use sample preparation effectively and the latest advances in sample preparation techniques. The panelists can answer your questions too! Part 1: Thursday, Sept. 17, 2020 at 10am EDT| 2pm BST| 3pm CEST Part 2: Friday, Sept. 18, 2020 at 10am EDT| 2pm BST| 3pm CEST On demand available after final airing until Sept. 18, 2021.