Octyl and nonylphenol ethoxylates and carboxylates in wastewater and sediments by liquid chromatography/tandem mass spectrometry.

@article{LoyoRosales2007OctylAN,
  title={Octyl and nonylphenol ethoxylates and carboxylates in wastewater and sediments by liquid chromatography/tandem mass spectrometry.},
  author={Jorge Eduardo Loyo-Rosales and Clifford Paul Rice and Alba Torrents},
  journal={Chemosphere},
  year={2007},
  volume={68 11},
  pages={2118-27}
}
This work presents an LC-MS-MS-based method for the quantitation of nonylphenol ethoxylates (NPEOs) and octylphenol ethoxylates (OPEOs) in water, sediment, and suspended particulate matter, and three of their carboxylated derivatives in water. The alkylphenol ethoxylates (APEOs) were analyzed using isotope dilution mass spectrometry with [(13)C(6)]-labeled analogues, whereas the carboxylated derivatives were determined by external standard quantitation followed by confirmation using standard… CONTINUE READING