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Title: Separation of nonionic compounds by CE using a lauryl poly(oxyethylene) sulfate additive

Abstract

A nonionic surfactant (Brij-30) was treated with chlorosulfonic acid to form C{sub 12}H{sub 25}(OCH{sub 2}CH{sub 2}){sub 4}OSO{sub 3}{sup -}Na{sup +}. Addition of a low concentration of this material to an aqueous solution-acetonitrile electrolyte makes it possible to separate nonionic organic compounds by capillary electrophoresis. Separation is based on differences in the stabilities of analyte-additive complexes in solution. Migration times of analytes can be varied over an unusually large range by varying the additive concentration and the proportion of acetonitrile in the electrolyte. This greatly expands the scope of neutral organic compounds that can be separated by CE. Several examples are given. Some very difficult separations were achieved, such as the baseline resolution of four methylbenz[a]anthracene isomers and the separation of normal and deuterated acetophenone. 15 refs., 7 figs.

Authors:
;  [1]
  1. Ames Lab., IA (United States)
Publication Date:
OSTI Identifier:
535451
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Journal Article
Journal Name:
Analytical Chemistry (Washington)
Additional Journal Information:
Journal Volume: 69; Journal Issue: 8; Other Information: PBD: 15 Apr 1997
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; 36 MATERIALS SCIENCE; ORGANIC COMPOUNDS; SEPARATION PROCESSES; ACETOPHENONE; SURFACTANTS; ACETONITRILE; AQUEOUS SOLUTIONS; ELECTROPHORESIS

Citation Formats

Ding, W, Fritz, J S, and Iowa State Univ., Ames, IA. Separation of nonionic compounds by CE using a lauryl poly(oxyethylene) sulfate additive. United States: N. p., 1997. Web. doi:10.1021/ac961027x.
Ding, W, Fritz, J S, & Iowa State Univ., Ames, IA. Separation of nonionic compounds by CE using a lauryl poly(oxyethylene) sulfate additive. United States. https://doi.org/10.1021/ac961027x
Ding, W, Fritz, J S, and Iowa State Univ., Ames, IA. Tue . "Separation of nonionic compounds by CE using a lauryl poly(oxyethylene) sulfate additive". United States. https://doi.org/10.1021/ac961027x.
@article{osti_535451,
title = {Separation of nonionic compounds by CE using a lauryl poly(oxyethylene) sulfate additive},
author = {Ding, W and Fritz, J S and Iowa State Univ., Ames, IA},
abstractNote = {A nonionic surfactant (Brij-30) was treated with chlorosulfonic acid to form C{sub 12}H{sub 25}(OCH{sub 2}CH{sub 2}){sub 4}OSO{sub 3}{sup -}Na{sup +}. Addition of a low concentration of this material to an aqueous solution-acetonitrile electrolyte makes it possible to separate nonionic organic compounds by capillary electrophoresis. Separation is based on differences in the stabilities of analyte-additive complexes in solution. Migration times of analytes can be varied over an unusually large range by varying the additive concentration and the proportion of acetonitrile in the electrolyte. This greatly expands the scope of neutral organic compounds that can be separated by CE. Several examples are given. Some very difficult separations were achieved, such as the baseline resolution of four methylbenz[a]anthracene isomers and the separation of normal and deuterated acetophenone. 15 refs., 7 figs.},
doi = {10.1021/ac961027x},
url = {https://www.osti.gov/biblio/535451}, journal = {Analytical Chemistry (Washington)},
number = 8,
volume = 69,
place = {United States},
year = {1997},
month = {4}
}