Preparation of Sorbent Tube Certified Reference Materials

Abstract:

Sorbent tubes, which are packed with active carbon and Tenax-TA, used to sample the non-polar volatile organic compounds (VOCs) in ambient air, are widely accepted for its simple method, high repeatability and stability. In this paper we reported a method to prepare the standard sorbent tubes loaded with VOCs components, which is based on ISO 6145. The standard VOCs mixture gasses are generated by a dynamic volumetric diffusion or permeation method and a mass flow control pump sample system. Experiments indicate that the standard sorbent tubes have a good repeatability, linearity and stability, which are expected being used as certified reference materials in China.

• Periodical: Advanced Materials Research (Volumes 807-809)
• Pages: 118-123
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.807-809.118
• Online since: September 2013
• Authors: Ze Yi Zhou, Shu Li Ma
• Keywords: Certified Reference Materials, Dynamic Volumetric Methods, Sorbent Tubes

References

[1] EPA, 1999. Compendium of Method for the Determination of Toxic Organic Compounds in Ambient Air, Second Edition, Compendium Method TO-17.

[2] ISO 6145-8, 2005. Gas analysis ¾ Preparation of calibration gas mixtures using dynamic volumetric methods ¾ part 8: diffusion method.

DOI: 10.3403/30128055u

[3] ISO 6145-10, 2002. Gas analysis ¾ Preparation of calibration gas mixtures using dynamic volumetric methods ¾ part 10: Permeation method.

DOI: 10.3403/02531857