Philip A. Helmke
Affiliations: | University of Wisconsin, Madison, Madison, WI |
Area:
Soil Science Agriculture, Geochemistry, Physical GeographyGoogle:
"Philip Helmke"Children
Sign in to add trainee| Carlos A. Bissani | grad student | 2000 | UW Madison |
| Thomas J. Boerth | grad student | 2003 | UW Madison |
| Julie A. Howe | grad student | 2004 | UW Madison |
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Publications
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| Brown DJ, McSweeney K, Helmke PA. (2004) Statistical, geochemical, and morphological analyses of stone line formation in Uganda Geomorphology. 62: 217-237 |
| Brown DJ, Helmke PA, Clayton MK. (2003) Robust geochemical indices for redox and weathering on a granitic laterite landscape in Central Uganda Geochimica Et Cosmochimica Acta. 67: 2711-2723 |
| Szulczewski MD, Helmke PA, Bleam WF. (2001) XANES spectroscopy studies of Cr(VI) reduction by thiols in organosulfur compounds and humic substances. Environmental Science & Technology. 35: 1134-41 |
| Xia K, Weesner F, Bleam WF, et al. (1998) XANES studies of oxidation states of sulfur in aquatic and soil humic substances Soil Science Society of America Journal. 62: 1240-1246 |
| Salam AK, Helmke PA. (1998) The pH dependence of free ionic activities and total dissolved concentrations of copper and cadmium in soil solution Geoderma. 83: 281-291 |
| Szulczewski MD, Helmke PA, Bleam WF. (1997) Comparison of XANES analyses and extractions to determine chromium speciation in contaminated soils Environmental Science and Technology. 31: 2954-2959 |
| Bland WL, Helmke PA, Baker JM. (1997) High-resolution snow-water equivalent measurement by gamma-ray spectroscopy Agricultural and Forest Meteorology. 83: 27-36 |
| Xia K, Bleam W, Helmke PA. (1997) Studies of the nature of binding sites of first row transition elements bound to aquatic and soil humic substances using X-ray absorption spectroscopy Geochimica Et Cosmochimica Acta. 61: 2223-2235 |
| Xia K, Bleam W, Helmke PA. (1997) Studies of the nature of Cu2+ and Pb2+ binding sites in soil humic substances using X-ray absorption spectroscopy Geochimica Et Cosmochimica Acta. 61: 2211-2221 |
| Vempati RK, Morris RV, Lauer HV, et al. (1995) Reflectivity and other physicochemical properties of Mn-substituted goethites and hematites Journal of Geophysical Research. 100: 3285-3295 |