期刊
ANALYTICA CHIMICA ACTA
卷 540, 期 2, 页码 269-277出版社
ELSEVIER
DOI: 10.1016/j.aca.2005.03.065
关键词
trace elements; atmospheric aerosols; inductively coupled plasma-mass spectrometry; microwave digestion; cellulose filter
A microwave-assisted digestion procedure using HNO3, HF, and H2O2 has been developed for analysis of elements in ambient particulate matter (PM). The samples are collected on cellulose filters and analyzed by inductively coupled plasma mass spectrometry (ICP-MS). The ICP-MS is calibrated with external standards, and recovery of analytes is tested with NIST SRM 1648 Urban Dust. This method has been used to quantify the airborne concentrations of a large number of elements, including Ag, As, Ba, Be, Ca, Cd, Ce, Co, Cr, Cs, Cu, Fe, Ga, K, Li, Mg, Mn, Mo, Ni, Pb, Rb, Se, Sb, Sr, Ti, Tl, V, and Zn. For the majority of these elements, recovery of the NIST SRM is within 15% of the certified values. (c) 2005 Elsevier B.V. All rights reserved.
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