Adsorption and Fractionation of Suwannee River Organic Matter on Metal (Fe, Al) Oxide-Coated Quartz: A Liquid Chromatographic Investigation
| Autor: | David I. Kreller, Anthony Furio, Yan Wu, Stephen Sutton |
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| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Environmental Engineering Science. 32:45-53 |
| ISSN: | 1557-9018 1092-8758 |
| DOI: | 10.1089/ees.2014.0294 |
| Popis: | The hydrophobic organic acid (HPOA) fraction of the dissolved organic matter (DOM) collected in 2012 at the headwaters of the Suwannee River (SR) was interacted with a metal (Fe, Al) oxide-coated quartz sand, which was sourced from Oyster, VA (referred to as Oyster Sand, “OS”). The adsorption, adsorptive fractionation, and competitive displacement interactions of SR-HPOA on OS were investigated. The novelty of this work is based on the experimental technique employed. Most prior studies of DOM-adsorbent reactions have been performed with either batch or continuous-flow column techniques. However, in this work, the DOM adsorbate and geosorbent were reacted using a rapid and data-rich liquid chromatographic method in which discrete (i.e., noncontinuous) additions of adsorbates are made onto manually adsorbent-packed columns, and eluting fractions are monitored in multiple optical detector channels. All experiments were performed under the same conditions [mobile phase pH 4 and ionic strength 0.005 ... |
| Databáze: | OpenAIRE |
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