Methods development for the determination of nonylphenol in the wastewater of the El Paso del Norte region
Nonylphenol (NP), a breakdown product of Alkylphenol polyethoxylates (APEOs), has been identified as an endocrine disrupting compound (EDC). These cause adverse effects to organisms. Many EDCs have been detected in wastewater and can escape treatment process into the environment. There has been no study on EDCs in the El Paso del Norte Region. This study is the first research concerning NP in wastewater in this area. ^ Thirty-nine water samples were collected from the northeast section of El Paso, Texas during the summer of 2005. Stir Bar Sorptive Extraction (SBSE) was used for the determination of NP in wastewater. An analytical method was developed to maximize extraction of NP from water samples. Optimum conditions were: 2 hours stirring time, 1000rpm, no methanol, no salt were used. NP occurrence and concentration were determined. Nonylphenol was detected in raw and effluent samples at 221.6 and 20.84 ppb, respectively. The removal rate was 90.20%. ^
Valentin Perez, Heriberto, "Methods development for the determination of nonylphenol in the wastewater of the El Paso del Norte region" (2006). ETD Collection for University of Texas, El Paso. AAI1435342.