The response characteristics of tetrazolium violet solutions to gamma irradiation

G. Emi-Reynolds, A. Kovács, J. J. Fletcher

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The dosimetry characteristics of various solutions of tetrazolium violet, TV, (2,5-diphenyl-3-(1-naphthyl)-2H-tetrazolium chloride) to gamma irradiation are reported. The optical absorption spectra of these solutions show peaks between 400 and 600 nm with a shoulder at around 550 nm. The dose response of the optical absorbance values of aqueous and aqueous-alcoholic solutions containing different concentrations of TV was measured in the 250 Gy up to 75 kGy dose range. The formation of formazan product was observed due to radiolytic reduction in both solutions. Its formation was found more pronounced in N2-saturated as well as in alkaline solutions. The results indicate that the 1 mM TV solution can be used for food irradiation and medical sterilization dosimetry at gamma irradiation facilities.

Original languageEnglish
Pages (from-to)1515-1518
Number of pages4
JournalRadiation Physics and Chemistry
Volume76
Issue number8-9
DOIs
Publication statusPublished - Aug 2007

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irradiation
dosimeters
dosage
shoulders
food
optical spectrum
optical absorption
chlorides
aqueous solutions
absorption spectra
products

Keywords

  • Dosimetry
  • Gamma radiation
  • Optical absorption spectra
  • Tetrazolium violet

ASJC Scopus subject areas

  • Radiation

Cite this

The response characteristics of tetrazolium violet solutions to gamma irradiation. / Emi-Reynolds, G.; Kovács, A.; Fletcher, J. J.

In: Radiation Physics and Chemistry, Vol. 76, No. 8-9, 08.2007, p. 1515-1518.

Research output: Contribution to journalArticle

Emi-Reynolds, G. ; Kovács, A. ; Fletcher, J. J. / The response characteristics of tetrazolium violet solutions to gamma irradiation. In: Radiation Physics and Chemistry. 2007 ; Vol. 76, No. 8-9. pp. 1515-1518.
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