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Consumable

Microchamber sampling

Microchambers are compact, stand-alone test chamber units that allow rapid sampling of vapour-phase organic compounds from a product or material, complementing small-scale chamber testing by third-party laboratories. Microchamber sampling is a type of dynamic headspace sampling and a powerful tool for increasing laboratory productivity. The technique is usually used in combination with sorbent tubes and off-line thermal desorption–GC–MS.

Overview

Demand for testing hazardous chemicals released by construction products and consumer goods has seen rapid growth over recent years. This is driven by regulatory developments, with some regulations requiring both third-party certification and in-house product quality control of emissions for full compliance.

Applications

  • Quality-control of chemical emissions from products and materials, such as construction materials
  • Screening of products prior to long-term certification tests e.g. consumer products
  • Checking raw materials.
  • Comparing products to those of competitors.
  • Monitoring odour and emission profiles e.g. car trim.
  • Kinetic studies such as shelf-life tests or monitoring aroma or fragrance profiles as they change over time for the food and consumer industries.

Benefits

  • No sample preparation needed – simply place the material in the chamber.
  • A constant flow of heated air or gas ensures rapid production of a representative VOC/SVOC profile.
  • Results can be correlated with longer-term reference methods.
  • Construction from inert-coated stainless steel ensures compatibility with reactive or thermally labile chemicals.
  • Accessories allow surface-only sampling or permeation testing.
  • No pump required – avoids set-up and calibration.