Admicelle-Based Solid Phase Extraction of Phenols Using Dialkylammonium Surfactant in the Hydroxide Form

A technique for admicelle-based solid phase extraction is presented in which a dialkylammonium surfactant in the hydroxide form is immobilized on silica. By converting dihexadecyldimethylammonium bromide to the hydroxide form, the surfactant is allowed to have the property of a strong base, aiding in the extraction of acidic phenols which are difficult to extract because of their differing polarities. The surfactant-silica admicelle parameters were optimized for the efficient extraction of eight phenols. Adsorbed phenols were eluted from the sorbent using small volumes of methanol. The phenols were preconcentrated from drinking water samples and were determined using high performance liquid chromatography (HPLC) coupled with a photo diode-array detector.

Name thesis:degree_name

Master of Science

Discipline thesis:degree_discipline

Department of Chemistry

Year

2008

Author dc:creator

• Pickering, Kali R

Contributors dc:contributor

• Dr. Eric Conte (Director), Dr. Stuart Burris, Dr. Chad Snyder

• surfactants
• Western Kentucky University’s Materials Characterization Center
• National Chung Hsing University
• Chemistry
• Organic Chemistry

Repository record dc:identifier

https://digitalcommons.wku.edu/theses/15

OAI identifier oai:identifier

oai:digitalcommons.wku.edu:theses-1014