Open AccessIdentification of the chemical states of phosphorus in atmospheric aerosols by XANES spectrometry
Author(s) -
Tohno Susumu,
Kawai Jun,
Kitajima Yoshinori
Publication year - 2001
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049500020616
Subject(s) - xanes , aerosol , analytical chemistry (journal) , atmospheric pressure , x ray absorption fine structure , absorption (acoustics) , chemical state , chemistry , mass spectrometry , x ray fluorescence , materials science , spectral line , spectroscopy , fluorescence , environmental chemistry , optics , meteorology , x ray photoelectron spectroscopy , physics , nuclear magnetic resonance , organic chemistry , quantum mechanics , astronomy , chromatography , composite material
Depth selective XAFS spectrometry was applied to determine the chemical states of phosphorus in atmospheric aerosols. Atmospheric aerosols were collected on aluminum foils and polyethylene films using a 4‐stage cascade impactor and a 12‐stage low pressure Andersen sampler, respectively. Samplings were performed at Uji (urban area) and Sakurajima (near a volcano). We measured X‐ray fluorescence yield (XFY) and total electron yield (sample current) simultaneously to obtain the X‐ray absorption near edge structure (XANES) spectra of the atmospheric aerosols. X‐ray absorption in the vicinities of P K‐edges was measured on the beamline BL‐11B at the Photon Factory, High Energy Accelerator Research Organization, Tsukuba, Japan. The Sakurajima aerosol samples showed only a P 5+ peak and the peak was remarkable in coarse mode. In case of the Uji samples, the P 5+ peak was dominant and a slight P 3+ peak was detected for sample current measurement.