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June 2008

Markes Newsletter
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Markes International Newsletter June 2008
Tobacco: Enhancing aroma profiling by GCMS

A new technical note has recently been published which examines the potential of two recent GCMS-related developments for allowing more odour profiling applications to be carried out by automated laboratory instrumentation thus reducing costs.

The first of these relates to Markes’ latest analytical thermal desorption technology for gas extraction and selective concentration of aroma constituents. The second is a complementary innovation in GCMS reprocessing software which further enhances the sensitivity and identification of trace olfactory compounds in complex aroma profiles.

TDTS 84: Using thermal desorption to enhance aroma profiling by GC-MS – featuring example applications from the tobacco industry

Click here to go to download this paper free of charge.
Soil gas: A new application note

Markes International has recently published an application note on the analysis of soil gas samples contaminated with a range of fuels.

  • TDTS 80: Evaluation of a ‘Soil Gas’ sorbent tube for improving the measurement of volatile and semi-volatile fuel vapours in soil contaminated land 

The experimental results discussed show analysis of both light and middle distillate hydrocarbons. The data also show that sorbent tubes provide a representative profile and quantitative recovery of soil gas contaminants across a wide volatility range.

The full technical note can be downloaded free-of-charge from this website here.
Markes International turn up the heat with RFID tube tagging technology

Markes has just announced that series 2 ULTRA™ 100-tube autosamplers now offer the option of automatic read and write of TubeTAG™ RFID tags. 

This means that series 2 ULTRA-UNITY TD users can permanently fix electronic TubeTAG labels to sorbent tubes allowing the history of every tube to be tracked throughout its life; sorbent combination, date of packing, number of thermal cycles and so on.

Full details are described in another new Markes application note (TDTS 82).

The full press release can be downloaded here and further details can be found here.
Environmental air monitoring: Two new application notes

Continuing its tradition of innovation and applications development in thermal desorption-gas chromatography-mass spectrometry (TD-GCMS), Markes International has published two new application notes for environmental monitoring: 

  • TDTS 79: Air monitoring - the respective advantages and applications of canisters and tubes 
  • TDTS 81: Analysis of canister air samples using cryogen-free thermal desorption in compliance with US EPA method TO-15

The full technical notes can be downloaded free-of-charge from this website here.

Markes International
Markes International Ltd. Gwaun Elai Medi Science Campus, Llantrisant, RCT, CF72 8XL, UK.
T: +44 (0) 1443 230 935. F: +44 (0) 1443 231 531. Email: enquiries@markes.com  W: www.markes.com Company Registration Number 3414783. VAT Registration Number 851 1406 56
UK
UK
Markes International Ltd
Gwaun Elai Medi-Science Campus
Llantrisant
RCT
CF72 8XL, UK
Tel: +44 (0)1443 230935
Germany
Germany
Markes International GmbH
Schleussnerstrasse 42
D-63263 Neu-Isenburg
Frankfurt
Germany
Tel: +49 (0)6102 8825569
USA (West)
USA
Markes International, Inc
2355 Gold Meadow Way
Gold River
California 95670
USA
Tel: 866-483-5684 (toll-free)
Part of Schauenburg International
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