TY - JOUR
T1 - Elemental analysis of airborne dust samples with TXRF
T2 - Comparison of oxygen-plasma ashing on sapphire carriers and acid digestion for sample preparation
AU - Theisen, M.
AU - Niessner, R.
PY - 1999
Y1 - 1999
N2 - The concentrations of 13 elements (As, Ca, Co, Cd, Cr, Fe, Ga, Ni, Pb, Pt, Ti, V and Zn) were determined in air particulate matter using total reflection X-ray fluorescence spectrometry (TXRF). For silicon analysis synthetic sapphire was chosen as a new sample carrier material - it is silicon-free, resistant to oxygen-plasma, microwaves and concentrated acids. The dust samples were collected on cellulose acetate filters. The decomposition of the filters was carried out by oxidation in a microwave-generated low-pressure oxygen-plasma directly on the TXRF sample carriers. The recovery of the investigated elements was verified with the standard reference material SRM 1648 (urban particulate matter) and ranged from 90 to 97%. The oxygen-plasma method was compared with conventional sample preparation by acid digestion.
AB - The concentrations of 13 elements (As, Ca, Co, Cd, Cr, Fe, Ga, Ni, Pb, Pt, Ti, V and Zn) were determined in air particulate matter using total reflection X-ray fluorescence spectrometry (TXRF). For silicon analysis synthetic sapphire was chosen as a new sample carrier material - it is silicon-free, resistant to oxygen-plasma, microwaves and concentrated acids. The dust samples were collected on cellulose acetate filters. The decomposition of the filters was carried out by oxidation in a microwave-generated low-pressure oxygen-plasma directly on the TXRF sample carriers. The recovery of the investigated elements was verified with the standard reference material SRM 1648 (urban particulate matter) and ranged from 90 to 97%. The oxygen-plasma method was compared with conventional sample preparation by acid digestion.
UR - http://www.scopus.com/inward/record.url?scp=2142658678&partnerID=8YFLogxK
U2 - 10.1007/s002160051496
DO - 10.1007/s002160051496
M3 - Article
AN - SCOPUS:2142658678
SN - 0937-0633
VL - 365
SP - 332
EP - 337
JO - Fresenius' Journal of Analytical Chemistry
JF - Fresenius' Journal of Analytical Chemistry
IS - 4
ER -