Innovative Technology For Trace Organic Analysis
Seach
TEL: +44 (0)1443 230 935
Mobile Menu

HS-TD technology for the routine detection of ppt level odorants in drinking water

Thursday, 20 September 2007 at 11:10:AM

Technical Note (TDTS) # 78 & Product Brochure (HS-TD)

Markes International announces routine detection of ppt level geosmin, methyl-i-borneol and other odorants in drinking water using its new expanded range of equilibrium headspace - thermal desorption (HS-TD) technology.
Designed to integrate with several leading brands of HS systems, the Markes HS-TD system integrates two of the most important GC sample introduction techniques – equilibrium headspace (HS) and thermal desorption (TD). HS-TD opens up new possibilities to users who need enhanced sensitivity for HS applications and/or require a versatile sample introduction system capable of dealing with any matrix: Solid, liquid or gas.

HS-TD incorporates the Markes UNITY thermal desorber, with its market leading trapping technology and pioneering quantitative sample re-collection facility. The combined system offers three modes of operation:

  • Automated HS-trap – offering enhanced sensitivity and a wider volatility range than conventional headspace and without the foaming and complexity of purge-and-trap
  • Method-compliant analytical thermal desorption (TD)
  • Conventional automated equilibrium headspace (HS)

Data are presented in a new Markes technical publication, TDTS78. Low ppt levels of geosmin, methyl-i-borneol and other odorants in drinking water were detected using headspace–thermal desorption (HS-TD). This shows robust routine operation of the HS-TD system for monitoring key odour compounds such as geosmin and methyl-i-borneol, down to 1 ppt levels in drinking water. This is 10x lower than the olfactory threshold. At a time when drinking water quality is increasingly important due to water shortages around the world, this application will be of interest to every drinking water laboratory.

UK
UK
Markes International Ltd
Gwaun Elai Medi-Science Campus
Llantrisant
RCT
CF72 8XL, UK
Tel: +44 (0)1443 230935
USA (East)
USA (East)
Markes International, Inc
11126-D Kenwood Road
Cincinnati
Ohio 45242
USA
Tel: 866-483-5684 (toll-free)
USA (West)
USA (West)
Markes International, Inc
2355 Gold Meadow Way
Gold River
California 95670
USA
Tel: 866-483-5684 (toll-free)
Germany
Germany
Markes International GmbH
Schleussnerstrasse 42
D-63263 Neu-Isenburg
Frankfurt
Germany
Tel: +49 (0)6102 8825569
Part of Schauenburg International
Top