Simple determination of trace amounts of anionic surfactants in river water by spectrophotometry combined with solid-phase extraction

Masakazu Tsukamoto, Yoshiyuki Murata, Mikiro Tada, Yasuaki Shimoishi

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1 Citation (Scopus)


A simple and sensitive specrophotometric method combined with solid-phase extraction (SPE) for the simultaneous determination of sodium linear-dodecylbenzenesulfonate (DBS) and sodium dodecyl sulfate (SDS) is described. The C2 (ethyl group bonded silicagel) cartridge could be repeatedly used more than 500 times for SPE, and it enabled the anionic surfactants to be concentrated by 50-fold. The calibration graph for DBS was linear in the range from 1.6 × 10-8 M to 5.0 × 10-7 M and for SDS from 2.0 × 10-9 M to 3.0 × 10-7 M. The relative standard deviation (n = 5) for 5.0 × 10-7 M DBS was 3.1% and for 2.5 × 10-7 M SDS was 1.7%. The proposed method was applied to the simultaneous determination of DBS and SDS in river-water samples.

Original languageEnglish
Pages (from-to)920-923
Number of pages4
JournalBioscience, Biotechnology and Biochemistry
Issue number4
Publication statusPublished - Apr 2004



  • 1-stearyl-4-(4-aminonaphthylazo)- pyridinium bromide
  • Sodium dodecyl sulfate
  • Sodium linear- dodecylbenzenesulfonate
  • Solid-phase extraction
  • Specrophotometry

ASJC Scopus subject areas

  • Food Science
  • Applied Microbiology and Biotechnology
  • Chemistry (miscellaneous)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry
  • Biotechnology

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