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Spectrophotometric determination of ozone in solutions: Molar absorption coefficient in the visible region.

08:00 EDT 18th March 2019 | BioPortfolio

Summary of "Spectrophotometric determination of ozone in solutions: Molar absorption coefficient in the visible region."

A new approach for the determination of ozone concentration in solutions in organic liquids based on spectrophotometric absorbance measurements in the visible region was proposed and substantiated. The molar absorption coefficient of ozone in the absorption maximum at ~600 nm is 8.0 mol L cm for hydrocarbons (hexane, heptane, isooctane), CHCl and CCl, and 5.3 mol L cm for methanol and 4.5 mol L cm for water (±10%). The coefficient monotonically decreases with increasing dielectric constant of the liquid. The low molar absorption coefficient allows the use of spectrophotometric measurements for determination of high ozone concentrations ranging from approximately 1·10 mol L up to 1.0 mol L.

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This article was published in the following journal.

Name: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
ISSN: 1873-3557
Pages: 39-43

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