Grantee Research Project Results
Publications Details for Grant Number R822832
The Secondary Structure of Humic Acid and its Environmental Implications
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Exploratory Research - Chemistry and Physics of Water (1995)
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| Reference Type | Reference Title | Journal | Author | Citation | Progress Report Year | Document Sources |
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| Book Chapter | Humic acid pseudomicelles in dilute aqueous solution: fluorescence and surface tension measurements. | None | von Wandruszka R, Engebretson RR, Yates III LM | von Wandruszka R, Engebretson RR, Yates III LM. Humic acid pseudomicelles in dilute aqueous solution: fluorescence and surface tension measurements. In: Understanding Humic Substances: Advanced Methods, Properties, and Applications, Boston, MA: Northeastern University, March 1999, pp. 79-85. |
R822832 (Final) |
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| Journal Article | The effect of molecular size on humic acid associations. | ORGANIC GEOCHEMISTRY | Engebretson RR, Von Wandruszka R | Engebretson RR, Von Wandruszka R. The effect of molecular size on humic acid associations. Organic Geochemistry 1997;26(11-12):759-767. |
R822832 (Final) |
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| Journal Article | Kinetic aspects of cation-enhanced aggregation in aqueous humic acids. | ENVIRONMENTAL SCIENCE & TECHNOLOGY | Engebretson R, von Wandruszka R | Engebretson RR, von Wandruszka R. Kinetic aspects of cation-enhanced aggregation in aqueous humic acids. Environmental Science & Technology 1998;32(4):488-493. |
R822832 (Final) |
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| Journal Article | Effects of humic acid purification on interactions with hydrophobic organic matter: evidence from fluorescence behavior. | ENVIRONMENTAL SCIENCE & TECHNOLOGY | Engebretson RR, von Wandruszka R | Engebretson RR, von Wandruszka R. Effects of humic acid purification on interactions with hydrophobic organic matter: evidence from fluorescence behavior. Environmental Science & Technology 1999;33(23):4299-4303. |
R822832 (Final) |
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| Journal Article | Decontamination of DDT-polluted soil by soil washing cloud point extraction. | ANALYTICAL LETTERS | Evdokimov E, von Wandruszka R | Evdokimov E, von Wandruszka R. Decontamination of DDT-polluted soil by soil washing/cloud point extraction. Analytical Letters 1998;31(13):2289-2298. |
R822832 (Final) |
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| Journal Article | Micellar fluidity and preclouding in mixed surfactant solutions. | LANGMUIR | McCarroll M, Toerne K, von Wandruszka R | McCarroll M, Toerne K, von Wandruszka R. Micellar fluidity and preclouding in mixed surfactant solutions. Langmuir 1998;14(11):2965-2969. |
R822832 (Final) |
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| Journal Article | Preclouding in mixed micellar solutions. | LANGMUIR | McCarroll ME, Toerne K, von Wandruszka R | McCarroll ME, Toerne K, von Wandruszka R. Preclouding in mixed micellar solutions. Langmuir 1998;14(21):6096-6100. |
R822832 (Final) |
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| Journal Article | The sequestration of hydrophobic micropollutants by dissolved humic acids. | SOIL SCIENCE | Ragle CS, Engebretson RR, von Wandruszka R | Ragle CS, Engebretson RR, von Wandruszka R. The sequestration of hydrophobic micropollutants by dissolved humic acids. Soil Science 1997;162(2):106-114. |
R822832 (Final) |
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| Journal Article | The role of selected cations in the formation of pseudomicelles in aqueous humic acid. | TALANTA | von Wandruszka R, Ragle C, Engebretson R | von Wandruszka R, Ragle C, Engebretson R. The role of selected cations in the formation of pseudomicelles in aqueous humic acid. Talanta 1997;44(5):805-809. |
R822832 (Final) |
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| Journal Article | The micellar model of humic acid: evidence from pyrene fluorescence measurements. | SOIL SCIENCE | von Wandruszka R | von Wandruszka R. The micellar model of humic acid: evidence from pyrene fluorescence measurements. Soil Science 1998;163(12):921-930. |
R822832 (Final) |
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| Journal Article | Characterization of humic acid size fractions by SEC and MALS. | ORGANIC GEOCHEMISTRY | von Wandruszka R, Schimpf M, Hill M, Engebretson R | von Wandruszka R, Schimpf M, Hill M, Engebretson R. Characterization of humic acid size fractions by SEC and MALS. Organic Geochemistry 1999;30(4):229-235. |
R822832 (Final) |
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| Journal Article | Immobilization of aqueous pyrene by dissolved humic acid. | ANALYTICA CHIMICA ACTA | Yates III LM, Engebretson RR, Haakenson TJ, von Wandruszka R | Yates III LM, Engebretson RR, Haakenson TJ, von Wandruszka R. Immobilization of aqueous pyrene by dissolved humic acid. Analytica Chimica Acta 1997;356(2-3):295-300. |
R822832 (Final) |
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| Journal Article | Functional group analysis of Suwannee River fulvic acid with reactive fluorescent probes. | FRESENIUS' JOURNAL OF ANALYTICAL CHEMISTRY | Yates III LM, von Wandruszka R | Yates III LM, von Wandruszka R. Functional group analysis of Suwannee River fulvic acid with reactive fluorescent probes. Fresenius' Journal of Analytical Chemistry 1999;364(8):746-748. |
R822832 (Final) |
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| Journal Article | Decontamination of polluted water by treatment with a crude humic acid blend. | ENVIRONMENTAL SCIENCE & TECHNOLOGY | Yates III LM, von Wandruszka R | Yates III LM, von Wandruszka R. Decontamination of polluted water by treatment with a crude humic acid blend. Environmental Science & Technology 1999;33(12):2076-2080. |
R822832 (Final) |
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| Journal Article | Effects of pH and metals on the surface tension of aqueous humic materials. | SOIL SCIENCE SOCIETY OF AMERICA JOURNAL | Yates III LM, von Wandruszka R | Yates III LM, von Wandruszka R. Effects of pH and metals on the surface tension of aqueous humic materials. Soil Science Society of America Journal 1999;63(6):1645-1649. |
R822832 (Final) |
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| Journal Article | A comparison of aggregation behavior in aqueous humic acids. | GEOCHEMICAL TRANSACTIONS | Young C, von Wandruszka R | Young C, von Wandruszka R. A comparison of aggregation behavior in aqueous humic acids. Geochemical Transactions 2001;2:16-20. |
R822832 (Final) |
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| Presentation | The effect of secondary structure on humic acid associations. | None | Amos T, Engebretson R, von Wandruszka R | Amos T, Engebretson R, von Wandruszka R. The effect of secondary structure on humic acid associations. Presented at the 38th Annual Idaho Academy of Science Meeting, Moscow, ID, April 4-6,1996. |
R822832 (Final) |
not available |
| Presentation | The role of molecular size and flexibility in humic acid assocations. | None | Engebretson RR, von Wandruszka R | Engebretson RR, von Wandruszka R. The role of molecular size and flexibility in humic acid assocations. Presented at the 38th Rocky Mountain Conference on Analytical Chemistry, Denver, CO, July 21-26, 1996. |
R822832 (Final) |
not available |
| Presentation | The kinetics of configurational changes in dissolved humic acids. | None | Engebretson R, von Wandruszka R | Engebretson R, von Wandruszka R. The kinetics of configurational changes in dissolved humic acids. Presented at the 52nd Northwest Regional Meeting of the American Chemical Society, Moscow, ID, June 18-21, 1997. |
R822832 (Final) |
not available |
| Presentation | The effect of molecular size on humic acid associations. | None | Engebretson R, von Wandruszka R | Engebretson R, von Wandruszka R. The effect of molecular size on humic acid associations. Presented at the Pittsburgh Conference of Analytical Chemistry and Applied Spectroscopy, Atlanta, GA, March 16-21, 1997. |
R822832 (Final) |
not available |
| Presentation | Morphologies and molecular characteristics of humic acid density fractions. | None | Haakenson T, von Wandruszka R | Haakenson T, von Wandruszka R. Morphologies and molecular characteristics of humic acid density fractions. Presented at the 52nd Northwest Regional Meeting of the American Chemical Society, Moscow, ID, June 18-21, 1997. |
R822832 (Final) |
not available |
| Presentation | The use of surfactant fluorescence to monitor aggregation and clouding. | None | McCarroll M, von Wandruszka R | McCarroll M, von Wandruszka R. The use of surfactant fluorescence to monitor aggregation and clouding. Presented at the 52nd Northwest Regional Meeting of the American Chemical Society, Moscow, ID, June 18-21, 1997. |
R822832 (Final) |
not available |
| Presentation | Structural parameters governing associations between humic acid and synthetic organics. | None | von Wandruszka R, Engebretson R, Ragle C | von Wandruszka R, Engebretson R, Ragle C. Structural parameters governing associations between humic acid and synthetic organics. Presented at the ASA-CSSA-SSSA Meetings, St. Louis, MO, November 29-December 3, 1995. |
R822832 (Final) |
not available |
| Presentation | The role of physical structure in humic acid associations. | None | von Wandruszka R, Engebretson R, Ragle C | von Wandruszka R, Engebretson R, Ragle C. The role of physical structure in humic acid associations. Presented at the Pittsburgh Conference of Analytical Chemistry and Applied Spectroscopy, Chicago, IL, March 3-8, 1996. |
R822832 (Final) |
not available |
| Presentation | The secondary structure of dissolved humic acid. | None | von Wandruszka R | von Wandruszka R. The secondary structure of dissolved humic acid. Presented at the University of Wyoming, Laramie, WY, March 1996. |
R822832 (Final) |
not available |
| Presentation | The association of humic acids with subsurface pollutants. | None | von Wandruszka R, Engebretson R | von Wandruszka R, Engebretson R. The association of humic acids with subsurface pollutants. Presented at the ASA-CSSA-SSSA Annual Meetings, Indianapolis, IN, November 3-8, 1996. |
R822832 (Final) |
not available |
| Presentation | The kinetics of humic acid associations. | None | von Wandruszka R, Engebretson R | von Wandruszka R, Engebretson R. The kinetics of humic acid associations. Presented at the ASA-CSSA-SSSA Annual Meetings, Anaheim, CA, October 26-31, 1997. |
R822832 (Final) |
not available |
| Presentation | Decontamination of polluted water with a crude humic acid. | None | von Wandruszka R, Yates III LM | von Wandruszka R, Yates III LM. Decontamination of polluted water with a crude humic acid. Presented at the 53rd Northwest Regional Meeting of the American Chemical Society, Pasco, WA, June 17-20, 1998. |
R822832 (Final) |
not available |
| Presentation | Kinetics of humic acid associations. | None | von Wandruszka R, Engebretson R | von Wandruszka R, Engebretson R. Kinetics of humic acid associations. Presented at the Pittsburgh Conference of Analytical Chemistry and Applied Spectroscopy, New Orleans, LA, March 1-5, 1998. |
R822832 (Final) |
not available |
| Presentation | Kinetics of humic acid interactions. | None | von Wandruszka R, Engebretson R | von Wandruszka R, Engebretson R. Kinetics of humic acid interactions. Presented at the ASA-CSSA-SSSA Annual Meetings, Baltimore, MD, October 18-22, 1998. |
R822832 (Final) |
not available |
| Presentation | Use of crude humic acid in pollutant extraction. | None | von Wandruszka R, Yates III LM | von Wandruszka R, Yates III LM. Use of crude humic acid in pollutant extraction. Presented at the ASA-CSSA-SSSA Annual Meetings, Baltimore, MD, October 18-22, 1998. |
R822832 (Final) |
not available |
| Presentation | The micellar model of humic substances: fluorescence, surface tension, and light scattering measurements. | None | von Wandruszka R | von Wandruszka R. The micellar model of humic substances: fluorescence, surface tension, and light scattering measurements. Presented at the Humic Substances Seminar III, Barnett Institute, Northeastern University, Boston, MA, March 22-23,1999. |
R822832 (Final) |
not available |
| Presentation | Morphological features of humic acid precipitates. | None | von Wandruszka R, Engebretson R | von Wandruszka R, Engebretson R. Morphological features of humic acid precipitates. Presented at the Pittsburgh Conference of Analytical Chemistry and Applied Spectroscopy, Orlando, FL, March 7-12, 1999. |
R822832 (Final) |
not available |
| Presentation | Particle size development in aqueous humic acids. | None | von Wandruszka R, Palmer N | von Wandruszka R, Palmer N. Particle size development in aqueous humic acids. Presented at the ASA-CSSA-SSSA Annual Meetings, Salt Lake City, UT, October 31-November 4, 1999. |
R822832 (Final) |
not available |
| Presentation | Evaporation of pyrene from aqueous humic acid solutions. | None | Yates III LM, von Wandruszka R | Yates III LM, von Wandruszka R. Evaporation of pyrene from aqueous humic acid solutions. Presented at the 52nd Northwest Regional Meeting of the American Chemical Society, Moscow, ID, June 18-21, 1997. |
R822832 (Final) |
not available |
| Proceedings | Kinetics of humic acid associations. | None | von Wandruszka R, Engebretson R | von Wandruszka R, Engebretson R. Kinetics of humic acid associations. In: Humic Substances and Chemical Contaminants, Anaheim, CA, October 26-27, 1997, pp. 119-126. |
R822832 (Final) |
not available |
The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.