New Humidifier Accessory from Markes set to improve analysis of chemical emissions from materials
Wednesday, 4 June 2014 at 10:43:AM
Markes International (Llantrisant, UK), a world leader in instrumentation for trace organic analysis, has announced the launch of a Humidifier Accessory, which extends the capability of their Micro-Chamber/Thermal Extractor™ by supplying it with humidified air or gas.
Markes’ Micro-Chamber/Thermal Extractor has gained popularity over recent years as a versatile tool for rapidly sampling volatile organic vapours released from everyday products such as toys, car trim and construction materials, or odour profiles from foods and cosmetics. Emitted vapours are swept onto sorbent tubes in a controlled flow of air or gas before being analysed by thermal desorption–gas chromatography (TD–GC).
Now the capability of the Micro-Chamber/Thermal Extractor has been further extended by the release of the Humidifier Accessory, which supplies the Micro-Chamber/Thermal Extractor with air or gas at up to 50% relative humidity.
Dr Caroline Widdowson, Material Emissions Applications Specialist at Markes, said “The availability of a regulated supply of humidified air or gas means that chemical emission profiles can now be obtained under conditions that are a better match for real-life scenarios. This is important because the rate of release of some compounds is significantly affected by humidity.”
The Humidifier Accessory will be particularly useful to Markes’ customers who have been using the Micro-Chamber/Thermal Extractor for routine quality control of product emission levels in manufacturing or R&D.
Dr Widdowson explains “Standard reference tests, used for certifying product emission levels, use humidified air and may take up to a month. Many Markes’ customers use their Micro-Chamber as a alternative tool for quick in-house screening, and the new Humidifier Accessory will help them get results that correlate even more closely with those from reference tests.”
Markes offers two models of Micro-Chamber/Thermal Extractor with capacity for four or six samples simultaneously being incubated at temperatures from ambient to 250 or 120ºC respectively. These innovative and practical units are ideal for evaluating vapour/emission profiles from individual product surfaces or bulk materials. Accessories are also available for permeation testing. Sampling typically takes 20–60 minutes, and materials as diverse as strawberries and plasterboard, or carpet and shampoo, can all be accommodated.
Markes is renowned as a global market leader for analytical thermal desorption and for developing ground-breaking time-of-flight MS technology for gas chromatography. Markes became part of the Mulheim-based German family business Schauenburg International Group, and has technical support centres in the UK, USA and Germany.
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