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Latest Blog Posts

Please find below a list of our blog posts, written by various members of the Markes team to highlight interesting topics that have come to our attention, or comment on stories in the news.

Breath sampling and analysis for biomonitoring and early disease diagnosis

Tuesday, 10 December 2019

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Exhaled breath is a good indicator of compounds containedwithin the bloodstream and directly reflects actual disease activity. Breathanalysis by TD–GC–MS holds the promise of non-invasive, early detection forlife-threatening conditio...

Tackling challenges posed by odorous emissions at the IWA conference

Wednesday, 20 November 2019

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The 8th Odour and VOC/Air Emissions Conference,organised by the International Water Association (IWA) was held on 14–16October in Hangzhou, China – the first time that this series of biennial conferenceshas been held in the country.&...

Regulatory and research developments at the 5th China In-Vehicle Air Quality Summit

Thursday, 7 November 2019

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On 24 and 25 October, around 150 attendees attended the 5th China In-Vehicle Air Quality Summit, held this year in Shanghai.Attending this conference is an essential part of my calendar – and the same is true for an increasing number of pe...

Getting more out of thermal desorption

Monday, 21 October 2019

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Therange of applications for thermal desorption continues to grow, with analystsaround the world using this technique to sample vapour phase organic compounds inapplications as diverse as monitoring of ambient air, sampling of volatilesfound in ...

New car smell: Update to vehicle interior air quality regulations

Monday, 19 August 2019

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July’s ‘Emissions and Odor of Plastics’ workshop, hosted by development and engineering company imat-uve in Shanghai, China, focused on the continuing issue of how to reduce chemical emissions from materials to vehicle interior...

Industry standard tubes for thermal desorption…and what matters when selecting them

Wednesday, 1 May 2019

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For analytical chemists planning to sample VOCs and SVOCs, selection of ‘industry standard’ sorbent tubes is usually an early item on their checklist.Working with sorbent tubes and caps with a fixed specification is preferred and som...

The latest thinking in odour and emissions from plastics – News from Kassel 2019

Tuesday, 16 April 2019

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What’s new in the VOC analysis of plastics? For 20 years the conference ‘Odour and Emissions of Plastic Materials’ – often known simply as ‘Kassel’ after the German city where it’s always held &ndas...

Sorbent tube caps and their role in protecting thermal desorption samples

Monday, 21 January 2019

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Of the many things you need to stay on top of as a thermal desorption analyst, ensuring sample integrity is one issue that doesn’t always come to mind.But it’s worth looking afresh at topics like this, dealing with issues that we alm...

The changing face of TO-15 canister air monitoring

Monday, 14 January 2019

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Canisters are a very popular method of air sampling, and have long been used in the USA to monitor volatile organic ‘air toxics’, largely for reasons of convenience and historical continuity. They are now also becoming increasingly w...

The Peltier effect – a ‘cool technology’ for thermal desorption

Tuesday, 8 January 2019

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Peltier cooling is one of the key technologies incorporated into Markes' thermal desorption instruments, but what's the physics behind it?The Peltier effect, despite being first noticed by Jean Peltier in 1834, remained a backwater of physics fo...

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