Records |
Author |
Akselsson, R.; Orsini, C.; Meinert, D.L.; Johansson, T.B.; Van Grieken, R.E.; Kaufmann, H.C.; Chapman, K.R.; Nelson, J.W.; Winchester, J.W. |
Title |
Application of proton induced X-ray emission analysis to the St. Louis regional air pollution study |
Type |
P3 Proceeding |
Year |
1976 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
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Keywords |
P3 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Open Access |
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Approved |
no |
Call Number |
UA @ admin @ c:irua:113633 |
Serial |
7481 |
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Author |
Annegarn, H.; Van Grieken, R.; van Espen, P.; von Blottnitz, F.; Sellschop, J.; Winchester, J.; Maenhaut, W. |
Title |
Background aerosol composition at Gobabeb, South West Africa |
Type |
A3 Journal article |
Year |
1976 |
Publication |
Madoqua |
Abbreviated Journal |
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Volume |
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Issue |
2 |
Pages |
107-118 |
Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Chemometrics (Mitac 3) |
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Series Issue |
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Edition |
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ISSN |
1011-5498 |
ISBN |
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UA library record |
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Approved |
no |
Call Number |
UA @ admin @ c:irua:116512 |
Serial |
7544 |
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Author |
Annegarn, H.J.; Van Grieken, R.E.; Winchester, J.W.; Sellschop, J.P.F.; von Blottnitz, F. |
Title |
Background aerosol concentrations at the Namib-Atlantic interface |
Type |
P3 Proceeding |
Year |
1979 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
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Keywords |
P3 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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no |
Call Number |
UA @ admin @ c:irua:117465 |
Serial |
7546 |
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Author |
Maenhaut, W.; Raemdonck, H.; Selen, A.; Van Grieken, R.; Winchester, J.W. |
Title |
Characterization of the atmospheric aerosol over the eastern equatorial Pacific |
Type |
A1 Journal article |
Year |
1983 |
Publication |
Journal of geophysical research |
Abbreviated Journal |
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Volume |
88 |
Issue |
C:9 |
Pages |
5353-5364 |
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
Abstract |
By using a polyester sailboat as sampling platform, a series of duplicate aerosol samples was collected by cascade impactors on a trip from Panama to Tahiti in 1979. Elemental analysis mainly by particle-induced X ray emission (PIXE) indicated, in the samples collected between Panama and the Galapagos Islands, the presence of a substantial crustal component (∼0.4 μg/m3), fine Cu (∼0.4 ng/m3) and Zn (∼0.6 ng/m3), and excess fine S and K (∼100 and ∼2.4 ng/m3, respectively) in addition to the major sea salt elements. The crustal component and fine Cu and Zn are suggested to result from natural continental sources (i.e., eolian dust transport from the American continents and perhaps geothermal emissions). Samples collected west of the Galapagos Islands in the southern trades showed significantly lower concentrations for the nonseawater components. The average Si and Fe levels were as low as 4.8 and 3.3 ng/m3, corresponding to a maximum of 0.066 μg/m3 for an assumed mineral dust component, whereas heavy metal concentrations were all below the detection limits (typically ranging from 0.05 to 0.15 ng/m3 for V, Cr, Mn, Ni, Cu, Zn, and Se). Excess fine S decreased to a mean of 46 ng/m3, a level similar to those reported for other remote marine and continental locations. This all indicates that the marine atmosphere west of the Galapagos was little influenced by natural continental source processes or by anthropogenic emissions. Under these truly marine conditions, several concentration ratios of the major seawater elements were significantly different from those in bulk seawater. Ca, Sr, and S in >1 μm diameter particles were enriched relative to K and Na, with the enrichment being substantially more pronounced (up to 50% or higher) for l4-μm diameter particles than for particles >4 μm. Comparison of these data with a similar data set from samples collected over the Atlantic indicates that the departures from seawater composition are significantly larger for the Pacific. Differences in sea-to-air fractionation processes, probably involving binding of divalent cations to organic matter in the oceanic surface microlayer, are suggested as being responsible for these observations. |
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Wos |
A1983QU67600025 |
Publication Date |
2008-02-06 |
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Series Issue |
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Edition |
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ISSN |
0148-0227; 2156-2202; 0022-1406; 0196-6928; 0196-6936; 0885-3401; 8755-8556; 0196-2256; 0747-7309; 1 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Approved |
no |
Call Number |
UA @ admin @ c:irua:113625 |
Serial |
7633 |
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Author |
Van Grieken, R.; Maenhaut, W.; Winchester, J.W. |
Title |
Chemical composition of atmospheric aerosols sampled worldwide |
Type |
A3 Journal article |
Year |
1985 |
Publication |
National Geographic Society research reports |
Abbreviated Journal |
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Volume |
20 |
Issue |
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Pages |
791-798 |
Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
Abstract |
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Publication Date |
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Series Editor |
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Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0077-4626 |
ISBN |
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UA library record |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
Call Number |
UA @ admin @ c:irua:116750 |
Serial |
7652 |
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Author |
Johansson, T.B.; Van Grieken, R.E.; Winchester, J.W. |
Title |
Elemental abundance variation with particle-size in north florida aerosols |
Type |
A1 Journal article |
Year |
1976 |
Publication |
Journal of geophysical research |
Abbreviated Journal |
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Volume |
81 |
Issue |
6 |
Pages |
1039-1046 |
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
Abstract |
A nonurban base line has been established for nine trace element constituents of aerosol particles as a function of particle size at ground level sampling stations in north Florida up to 50 km from the Gulf of Mexico. The particle size range 0.25- to >4-μm aerodynamic diameter was investigated by cascade impactor sampling and elemental analysis by proton-induced X ray emission. By using a strategy of sampling at urban, forest, and coastal locations and by choosing approximately 48-hour sample averaging intervals the potential dependence of the base line levels both on local pollution and natural sources and on local particle size specific aerosol removal processes could be evaluated. It is found that elements contained in the largest particles, especially those of >4 μm, display the greatest degree of average concentration difference between sites, a result suggesting short atmospheric residence times and the importance of local dispersion sources and atmospheric cleansing processes in regulating the particle concentrations in air. Elements contained in particles of <2-μm diameter show little average concentration difference between sites unless they are influenced by local pollution sources, a finding suggesting that their concentrations in air are regulated by large-scale sources and transport processes. Sulfur in the smallest particles shows a marked constancy of concentration, but it may be modified in the largest particle size ranges in relation to proximity to the seacoast. No evidence is found for dependence of particulate sulfur concentrations on local pollution sources. K, Ca, Ti, Fe, and Zn appear to be regulated in the main by terrestrial source processes, and Cl by marine source processes, but Br and Pb appear to be accounted for adequately by assuming automotive fuel combustion as their major source. Limited data obtained for V indicate that it may vary considerably with fluctuations in aerosol transport from oil-fired electric power plant sources in the region. Limited additional data also suggest that Mn is derived from sources of natural terrestrial composition. In view of these findings, certain criteria may be set for the design of a meaningful nonurban aerosol monitoring network. |
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Wos |
A1976BG78300001 |
Publication Date |
2008-02-06 |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0148-0227; 2156-2202; 0022-1406; 0196-6928; 0196-6936; 0885-3401; 8755-8556; 0196-2256; 0747-7309; 1 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
Call Number |
UA @ admin @ c:irua:113637 |
Serial |
7879 |
Permanent link to this record |
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Author |
Johansson, T.B.; Nelson, J.W.; Van Grieken, R.E.; Winchester, J.W. |
Title |
Elemental analysis of aerosol-size fractions by proton-induced X-ray-emission |
Type |
A1 Journal article |
Year |
1973 |
Publication |
Transactions of the American Nuclear Society |
Abbreviated Journal |
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Volume |
17 |
Issue |
Nov |
Pages |
103-103 |
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
Abstract |
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Wos |
A1973R161300114 |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0003-018x |
ISBN |
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Additional Links |
UA library record; WoS full record |
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Notes |
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Approved |
no |
Call Number |
UA @ admin @ c:irua:113643 |
Serial |
7880 |
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Author |
Johansson, T.B.; Van Grieken, R.E.; Nelson, J.W.; Winchester, J.W. |
Title |
Elemental trace analysis of small samples by proton-induced X-ray-emission |
Type |
A1 Journal article |
Year |
1975 |
Publication |
Analytical chemistry |
Abbreviated Journal |
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Volume |
47 |
Issue |
6 |
Pages |
855-860 |
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
Abstract |
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Wos |
A1975AA02900016 |
Publication Date |
2005-03-08 |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0003-2700; 5206-882x |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
Call Number |
UA @ admin @ c:irua:113638 |
Serial |
7895 |
Permanent link to this record |
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Author |
Van Grieken, R.E.; Johansson, T.B.; Akselsson, K.R.; Winchester, J.W.; Nelson, J.W.; Chapman, K.R. |
Title |
Geophysical applicability of aerosol size distribution measurements using cascade impactors and proton-induced X-ray-emission |
Type |
A1 Journal article |
Year |
1976 |
Publication |
Atmospheric environment : an international journal |
Abbreviated Journal |
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Volume |
10 |
Issue |
8 |
Pages |
571-576 |
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
Abstract |
Proton Induced X-ray Emission, (PIXE), is capable of high precision analysis for trace element components of aerosol particle size fractions sampled by cascade impactor. A statistical evaluation of data quality has been carried out in order to distinguish between analytical uncertainties in the PIXE procedure, errors caused by cascade impactor performance and by other factors in the sampling procedure, and geophysical causes of differences in composition and particle size distributions of the elements in aerosols. Replicate analyses and simultaneous samplings taken in north Florida and St. Louis have been used for the data evaluation. In addition to the analytical error the sampling procedure contributes an error of ~ 10% to be added quadratically. The resulting precision is sufficient to evaluate the data in geophysical terms. This is illustrated by means of sample sets taken simultaneously in an urban, forest and coastal environment of the same region. |
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A1976BZ75500001 |
Publication Date |
2003-08-06 |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1352-2310 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Notes |
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Approved |
no |
Call Number |
UA @ admin @ c:irua:113636 |
Serial |
8000 |
Permanent link to this record |
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Author |
Johansson, T.B.; Van Grieken, R.E.; Winchester, J.W. |
Title |
Interpretation of aerosol trace metal particle size distributions |
Type |
H3 Book chapter |
Year |
1975 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
356-365
T2 - Nuclear techniques in environmental r |
Keywords |
H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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ISBN |
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UA library record |
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Open Access |
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Notes |
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Approved |
no |
Call Number |
UA @ admin @ c:irua:117460 |
Serial |
8117 |
Permanent link to this record |
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Author |
Johansson, T.B.; Van Grieken, R.E.; Winchester, J.W. |
Title |
Marine influences on aerosol composition in the coastal zone |
Type |
A1 Journal article |
Year |
1974 |
Publication |
Journal de recherches atmosphériques |
Abbreviated Journal |
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Volume |
8 |
Issue |
3-4 |
Pages |
761-766 |
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
Abstract |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0021-7972 |
ISBN |
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UA library record |
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Times cited |
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Open Access |
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Approved |
no |
Call Number |
UA @ admin @ c:irua:113640 |
Serial |
8204 |
Permanent link to this record |
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Author |
Van Grieken, R.E.; Johansson, T.B.; Winchester, J.W.; Odom, L. |
Title |
Micro-determination of zirconium-hafnium ratios in zircons by proton induced X-ray emission |
Type |
A3 Journal article |
Year |
1975 |
Publication |
Fresenius' Zeitschrift für analytische Chemie |
Abbreviated Journal |
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Volume |
275 |
Issue |
5 |
Pages |
343-348 |
Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
Abstract |
The zirconium/hafnium ratios of zircons are determined using proton induced X-ray emission. Submilligram samples, imbedded in a starch layer and deposited on a 50 μg/cm2 polystyrene carrier, are irradiated for 1020 min with a 5 nA beam of 3.7 MeV protons, while the Hf-Lβ and Zr-Kα X-rays are counted with a Si(Li) detector. The standard deviation per analysis is in the 36 % range. Only few interferences are possible. To eliminate errors due to absorption effects the zircon layer thickness should be above 40 μm or reproducibly thin samples should be employed. Measuring the Hf-Lβ/Hf-Lα ratio for samples and standards might provide a practical check for the absence of absorption errors. The sensitivity is so favourable that, in practice, the minimal sample size is only limited by the minimal amount that can be handled properly. |
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Publication Date |
2004-11-11 |
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Series Issue |
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Edition |
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ISSN |
0016-1152 |
ISBN |
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UA library record |
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no |
Call Number |
UA @ admin @ c:irua:116636 |
Serial |
8231 |
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Author |
Maenhaut, W.; Selen, A.; van Espen, P.; Van Grieken, R.; Winchester, J.W. |
Title |
Sulfur and heavy metals over the Atlantic Ocean : comparison with other marine data |
Type |
P3 Proceeding |
Year |
1980 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
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Keywords |
P3 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Chemometrics (Mitac 3) |
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Open Access |
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no |
Call Number |
UA @ admin @ c:irua:117480 |
Serial |
8618 |
Permanent link to this record |
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Author |
Van Grieken, R.E.; Johansson, T.B.; Winchester, J.W. |
Title |
Trace metal fractionation effects between sea water and aerosols from bubble bursting |
Type |
A1 Journal article |
Year |
1974 |
Publication |
Journal de recherches atmosphériques |
Abbreviated Journal |
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Volume |
8 |
Issue |
3-4 |
Pages |
611-621 |
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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ISSN |
0021-7972 |
ISBN |
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UA library record |
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no |
Call Number |
UA @ admin @ c:irua:113641 |
Serial |
8693 |
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Author |
Winchester, J.W.; Meinert, D.L.; Nelson, J.W.; Johansson, T.B.; Van Grieken, R.E.; Orsini, C.; Kaufmann, H.C.; Akselsson, R. |
Title |
Trace metals in the St-Louis aerosol |
Type |
H3 Book chapter |
Year |
1975 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
385-394
T2 - Nuclear techniques in environmental r |
Keywords |
H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Times cited |
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Open Access |
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no |
Call Number |
UA @ admin @ c:irua:117459 |
Serial |
8694 |
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