Markes International, Ltd.

This application note demonstrates the benefit of large volume preconcentration (LVP) for enhancing headspace analysis of trace-level VOCs that contribute to aroma & flavour in tomato paste.

Study demonstrating the development of an analytical platform based upon TD–GC×GC–TOF MS and showing its application to the collection and analysis of breath samples

This work shows how thermal desorption with GC–MS is used to measure volatile organic biomarkers in the breath of individuals with malaria.

This poster describes the analysis of 117 environmental air pollutants in high-humidity airstreams using thermal desorption with dual-column GC–MS/FID.

This poster describes the analysis of 117 environmental air pollutants in high-humidity airstreams using thermal desorption with dual-column GC–MS/FID.

• Robust and sensitive sampling, using HiSorb™ high-capacity sorptive extraction probes with preconcentration on the Centri® platform. • Enhanced confidence in identification, through use of the Tandem Ionisation® providing hard & soft EI spectra in a single run. • Highly sensitive SCD screening for odour taints caused by trace sulfur species.

Using a single-platform, multi-hyphenated analytical system, to detect odour taints and to provide flexible yet comprehensive aroma profiling of hops and beer

Using a single-platform, multi-hyphenated analytical system, to detect odour taints and to provide flexible yet comprehensive aroma profiling of hops and beer

The analysis of VOCs in water, using headspace–trap sampling. It shows performance improvements on the purge-and-trap methodology in US EPA Method 524.2

The analysis of VOCs in water, using headspace–trap sampling. It shows performance improvements on the purge-and-trap methodology in US EPA Method 524.2

Enhanced aroma profiling of vodka using automated immersive high-capacity sorptive extraction with GC–MS

This study identifies low-level odorants in wine at ppb-level, using automated high-capacity sorptive extraction with GC–MS.

Comprehensive VOC profiling of meat using dynamic headspace and automated TD–GC–MS analysis

This study identifies low-level odorants in wine at ppb-level, using automated high-capacity sorptive extraction with GC–MS.

Quantitation of residual solvents in food packaging by automated headspace–trap GC–MS

Screening foods and beverages for butylated hydroxytoluene (BHT) using automated headspace–trap GC–MS

Screening foods and beverages for butylated hydroxytoluene (BHT) using automated headspace–trap GC–MS

Comprehensive VOC profiling of meat using dynamic headspace and automated TD–GC–MS analysis

Quantitation of residual solvents in food packaging by automated headspace–trap GC–MS

Enhanced aroma profiling of vodka using automated immersive high-capacity sorptive extraction with GC–MS

This study shows the advantages of automated immersive sorptive extraction for the GC–MS analysis of a wide range of aroma compounds in vodka.

This study shows the advantages of automated immersive sorptive extraction for the GC–MS analysis of a wide range of aroma compounds in vodka.

Data acquired using the Centri® automated multi-mode sampling and preconcentration system for GC–MS can be used to generate insights into the aroma profiles of foods.

This study shows that the organic compounds giving rise to the flavor of beverages can be identified by high-capacity sorptive extraction using PDMS probes, wih analysis by thermal desorption–GC–MS.

This application note demonstrates that Markes International’s automated thermal desorption systems offer excellent results for monitoring volatile organic compounds (VOCs) in stationary source emissions in accordance with the updated version of the European standard method CEN/TS 13649 released in 2014. The value of repeat analysis for method development and result verification is also demonstrated.

What is thermal desorption and how can it extend the capability of GC? In this podcast, you’ll hear the answers to these questions directly from Elizabeth Woolfenden, a leading expert on this sample introduction technique. As a co-founder of Markes International, widely acknowledged as the world leaders in TD, Elizabeth has been right at the heart of the development of thermal desorption, and will draw on her experience to highlight the scope of the technique, along with key technical innovations and emerging applications. So whether you’re new to TD and want a quick introduction, or an experienced analyst interested in hearing a personal perspective, don’t miss this unique opportunity to get the lowdown on thermal desorption from a major player in the area!

In May the EU tobacco products directive became applicable setting out rules governing the manufacture, presentation and sale of tobacco and related products, and the US FDA extended its authority over regulation of tobacco products to include electronic nicotine delivery systems (ENDS) such as e-cigarettes. This Application Note describes a versatile screening method for tackling the challenge of regulatory compliance and quality control in this rapidly expanding industry.

In May the EU tobacco products directive became applicable setting out rules governing the manufacture, presentation and sale of tobacco and related products, and the US FDA extended its authority over regulation of tobacco products to include electronic nicotine delivery systems (ENDS) such as e-cigarettes. This Application Note describes a versatile screening method for tackling the challenge of regulatory compliance and quality control in this rapidly expanding industry.

This Application Note demonstrates the enhanced separation and unparalleled sensitivity that can be achieved in the characterisation of cigarette smoke GC×GC with BenchTOF time-of-flight mass spectrometry, aided by Tandem Ionisation for simultaneous acquisition of hard and soft EI data.