Picture of virus under microscope

Research under the microscope...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

Explore SIPBS research

A passive tube-type sampler for the determination of formaldehyde vapours in museum enclosures

Gibson, L.T. and Brokerhof, A.W. (2001) A passive tube-type sampler for the determination of formaldehyde vapours in museum enclosures. Studies in Conservation, 46 (4). pp. 289-303. ISSN 0039-3630

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

A tube-type passive sampling method has been developed and assessed for the quantification of formaldehyde (methanol) vapours in indoor air. The sampler was designed for use in museums where test sites often include small enclosures with low air movement. The procedure involves collection of formaldehyde vapours in a Palmer diffusion tube containing a paper support impregnated with an acidified solution of 2,4-dinitrophenylhydrazine (2,4-DNPH). After sampling, quantification of the trapped F-DNPH is achieved by high performance liquid chromatography (HPLC) analysis with UV detection at 350mm. To validate the procedure, permeation devices were used to generate formaldehyde-containing atmospheres., 81-2975pph, in a 20dm(3) chamber so that experimentally derived sampling rates could be calculated and compared with the theoretical value. Three 2,4-DHPH solutions were investigated to obtain an efficient and stable trapping solution. Best results were achieved with a 27mg.ml(-2) solution of 2,4-DNPH which contained 4(3.)6ml.min(-1). The passive sampling method was repeatable and reproducible with RSD (relative standard deviation) values below 7% for long-term exposures at low air velocities.