Adsorption of beta blockers to environmental surfaces.

Adsorption of beta blockers to environmental surfaces. Research Abstract Details 

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Adsorption of beta blockers to environmental surfaces. Abstract Text:

Tohren C G Kibbey,Rajiv Paruchuri,David A Sabatini,Lixia Chen,

Beta-adrenergic blocking agents (beta blockers) are widely used pharmaceuticals which have been detected in the environment. Predicting the transport and ultimate fate of beta blockers in the environment requires understanding their adsorption to soils and sediments, something for which little information is currently available. The objective of this work was to examine the adsorption of three beta blockers, propranolol, metoprolol and nadolol, to a natural alluvial material, as well as to six minerals present as components of the alluvial material. Batch adsorption experiments indicate that, for most of the minerals studied, compound hydrophobicity is an important predictor of adsorption, with propranolol,the most hydrophobic compound studied, adsorbing to the greatest extent. Results further suggest that, for the minerals studied, electrostatic effects are not a good predictor of adsorption; adsorption extent was not well-predicted by either surface zeta potential or by the difference between experiment pH and point of zero charge, despite the cationic nature af the three beta blockers at experiment pH values. Experiments were conducted to examine the effect of an anionic surfactant, sodium dodecyl benzene sulfonate (SDBS), on adsorption. Results indicate that SDBS significantly increases the adsorption of propranolol to two different sorbents. This result is potentially important because surfactants such as SDBS are likely to be present in wastewater effluents with beta blockers and could influence their mobility in the environment.

Adsorption of beta blockers to environmental surfaces. Publishing Authors By Initials

TC Kibbey,R Paruchuri,DA Sabatini,L Chen,

For similar chemical actions and uses: specialty uses of chemicals: surface-active agents research abstracts see: chemical actions and uses: specialty uses of chemicals: surface-active agents research

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Adsorption of beta blockers to environmental surfaces. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: Environmental science & technology

VOLUME: 41

Page Numbers: 5349-56

Journal Abbreviation: Environ. Sci. Technol.

ISSN: 0013-936X

DAY: 1

MONTH: Aug

YEAR: 2007

Adsorption of beta blockers to environmental surfaces. Information

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LANGUAGE: eng

NlmUniqueID: 213155

Adsorption of beta blockers to environmental surfaces. Keywords Mesh Terms:

KEYWORDS: Surface-Active Agents

MESH TERMS: chemistry

Chemical & Substance for Abstract: Adsorption of beta blockers to environmental surfaces. Information

Substance Name: Propranolol

Registry Number: 525-66-6

Grant and Affiliation Information for Adsorption of beta blockers to environmental surfaces.

AFFILIATION: School of Civil Engineering and Environmental Science, The University of Oklahoma, Norman, Oklahoma 73019-1024, USA. kibbey@ou.edu

Country: United States

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MEDLINETA: Environ Sci Technol

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