Online measurement of phthalate-particulate matter interactions by membrane introduction mass spectrometry (MIMS)
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Issue Date
2018-02-23
Editor
Authors
Angelstad, Martin A.
Krogh, Erik T.
Agnes, George R.
Gill, Chris G.
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Subject
Abstract
To enable further study and assessment of indoor inhalation exposure risk, an online apparatus enabling measurement of semi-volatile compound partitioning on household particulates was developed. An example method for use of the apparatus is described using dimethyl phthalate (DMP). The system employs direct measurement by membrane introduction mass spectrometry (MIMS). The MIMS system was calibrated using known gas phase DMP concentrations produced by gravimetrically calibrated permeation devices. The quantity of DMP sorbed by particles is described first using a model particle type, a reverse-phase liquid chromatography packing material, and then with a household dust sample. In addition, the desorption of semi-volatile compounds from a household dust sample was monitored using the apparatus, and characteristic fragment ion signals for phthalate compounds were observed.
Description
This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances and Environmental Engineering on February 23, 2018, available online at: http://www.tandfonline.com/10.1080/10934529.2018.1439858