Abstract
X-ray photoelectron spectroscopy (XPS) was carried out to analyse a commercially available heptanedioic acid powder. XPS spectra were obtained using incident monochromatic Al Ka radiation at 1486.6 eV. Snapshots and scans of C 1s and O 1s core level spectra are presented. The presence of characteristic carbon and oxygen photoelectrons allows the use these results as a reference for dicarboxylic acids. (C) 2017 American Vacuum Society.