The use of dosimeters to measure radical production in aqueous sonochemical systems

Gareth J. Price, Emma J. Lenz

Research output: Contribution to journalArticle


The use of two dosimeter systems for quantifying radical production during aqueous sonochemical processes has been investigated. The Fricke (Fe2+/Fe3+) system was found to be useful at higher concentrations but care must be taken in interpreting the results since radical production is not the only process taking place. There is some reaction even in the absence of ultrasound and this involves dissolved oxygen gas. The concentration of hydroxyl radicals formed was accurately monitored at low concentrations using the terephthalate dosimeter and the limits of its applicability were found. Both systems were used to investigate the effect of varying the ultrasound intensity.

Original languageEnglish
Pages (from-to)451-456
Number of pages6
Issue number6
Publication statusPublished - Nov 1993


  • dosimeters
  • radical production
  • sonochemistry

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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