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Biochemical method for chlorine dioxide determination

R Tinoco1, D Hernandez-Saavedra, J L Ochoa

  • 1Instituto de Biotecnología, UNAM, Cuernavaca, Morelos, Mexico.

Analytical Biochemistry
|October 1, 1996
PubMed
Summary
This summary is machine-generated.

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A new enzymatic method accurately detects chlorine dioxide (ClO2) using horseradish peroxidase. This rapid assay is simpler and faster than traditional methods for disinfectant analysis.

Area of Science:

  • Analytical Chemistry
  • Biochemistry

Background:

  • Chlorine dioxide (ClO2) is a widely used disinfectant.
  • Existing methods for ClO2 determination are often time-consuming and laborious.

Purpose of the Study:

  • To develop a new, rapid, and easy enzymatic method for chlorine dioxide determination.
  • To evaluate the performance and specificity of the new assay.

Main Methods:

  • A spectrophotometric assay utilizing the decolorization of reactive yellow 17 by horseradish peroxidase in the presence of chlorine dioxide.
  • Testing the interference of 18 different compounds on the assay.

Main Results:

  • The assay can detect chlorine dioxide in the range of 0.2 to 4 mg/liter.
  • No significant interference was observed from various compounds, except for sodium hypochlorite.

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  • The enzymatic method proved to be faster and simpler compared to volumetric, amperometric, and colorimetric techniques.

    • Conclusions:

    • A novel, rapid, and specific enzymatic method for chlorine dioxide determination has been successfully developed.
    • This method offers a significant advantage in terms of speed and ease of use over conventional techniques.
    • The assay is suitable for routine analysis of chlorine dioxide in various applications.