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Markes International Ltd

Application Notes by Markes International Ltd

Identifying low-level odorants in wine by automated high-capacity sorptive extraction with GC–MS

| Contributed by Markes International Ltd

This study shows that immersive sorptive extraction using high-capacity HiSorb probes, can be used to screen wine for ppb levels of two yeast-derived spoilage compounds.

Quantitative analysis of airborne semi-volatile flame retardants using sorbent tube sampling with TD–GC–MS

| Contributed by Markes International Ltd

This study describes the research into the performance of sorbent-tube sampling and thermal desorption (TD) coupled with GC–MS for the analysis of two classes of flame retardants.

Quantitative determination of volatile organic pollutants in water using headspace–trap GC–MS

| Contributed by Markes International Ltd

Headspace samples acquired on the Centri automated sample preparation and concentration platform were used to quantify a wide range of volatile organic pollutants in water.

Extending whole-air monitoring: Simultaneous cryogen-free analysis of PAMS ozone precursors and TO-15 air toxics from canisters in accordance with new Chinese air-monitoring regulations

| Contributed by Markes International Ltd

This application note describes cryogen-free sampling and analysis of the 108 analytes of a combined list of PAMS ozone precursors and TO-15 air toxics in high-humidity environments.

The development of standard methods relating to vehicle interior air quality (VIAQ) and how to comply with them

| Contributed by Markes International Ltd

This Application Note discusses the introduction of regulations limiting the quantities of VOCs and SVOCs allowed in vehicle cabin air.

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

| Contributed by Markes International Ltd

This Application Note describes the analysis of three fragranced consumer products – fabric conditioner, washing detergent and washing powder – using three sampling approaches in conjunction with analysis by thermal desorption–gas chromatography–mass spectrometry (TD–GC–MS).

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

| Contributed by Markes International Ltd

This Application Note describes the analysis of three fragranced consumer products, using three sampling approaches in conjunction with analysis by thermal desorption–gas chromatography–mass spectrometry (TD–GC–MS).

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

| Contributed by Markes International Ltd

This study shows that headspace samples acquired on the new Centri® automated multimode sampling and concentration system for gas chromatography–mass spectrometry (GC–MS) can be used to screen food packaging for residual solvents and other additives.

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

| Contributed by Markes International Ltd

This study shows that headspace samples acquired on the new Centri® automated multimode sampling and concentration system for gas chromatography–mass spectrometry (GC–MS) can be used to screen food and beverages for trace-level additives.

Correlating consumer sensory experience of apple aroma with VOC profiles acquired by automated TD–GC–MS

| Contributed by Markes International Ltd

This study shows that data acquired using the new Centri® automated multi-mode sampling and concentration system for gas chromatography–mass spectrometry (GC–MS) can be used to generate useful insights into the aroma profiles of foods.

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