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. 2009 Oct 7;43(21):8105–8112. doi: 10.1021/es901742f

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Copyright © 2009 American Chemical Society

This is an open-access article distributed under the ACS AuthorChoice Terms & Conditions. Any use of this article, must conform to the terms of that license which are available at http://pubs.acs.org.

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ESI-MS online analysis in negative scan mode of the glyoxal (1 mM) + OH radical (5 mM H₂O₂ + UV) experiment. Oxalic acid (m/z⁻ 89) and glyoxylic acid (m/z⁻ 73) are displayed in raw ion abundance from ESI-MS. Oxalic acid concentration quantified by IC is overlaid (◼).