The response characteristics of tetrazolium violet solutions to gamma irradiation

被引：9

作者：

Emi-Reynolds, G.

Kovacs, Andras

Fletcher, J. J.

机构：

[1] Ghana Atom Energy Commiss, Radiat Protect Inst, Legon, Ghana

[2] Hungarian Acad Sci, Inst Isotopes, H-1525 Budapest, Hungary

[3] Univ Cape Coast, Dept Phys, Cape Coast, Ghana

来源：

RADIATION PHYSICS AND CHEMISTRY | 2007年 / 76卷 / 8-9期

关键词：

tetrazolium violet; gamma radiation; dosimetry; optical absorption spectra;

D O I：

10.1016/j.radphyschem.2007.02.063

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 urn 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 N-2-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. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：1515 / 1518

页数：4

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