EFFECT OF IMPURITIES IN XYLENOL ORANGE ON THE SPECTROPHOTOMETRIC READOUT METHOD FOR ALANINE DOSIMETRY

Authors
JAIN V GUPTA BL
Citation
V. Jain et Bl. Gupta, EFFECT OF IMPURITIES IN XYLENOL ORANGE ON THE SPECTROPHOTOMETRIC READOUT METHOD FOR ALANINE DOSIMETRY, Applied radiation and isotopes, 45(9), 1994, pp. 973-977
Citations number
15
Categorie Soggetti
Nuclear Sciences & Tecnology","Radiology,Nuclear Medicine & Medical Imaging
Journal title
Applied radiation and isotopes
ISSN journal
09698043 → ACNP
Volume
45
Issue
9
Year of publication
1994
Pages
973 - 977
Database
ISI
SICI code
0969-8043(1994)45:9<973:EOIIXO>2.0.ZU;2-2
Abstract
A useful spectrophotometric readout method for alanine dosimetry invol ves the oxidation of ferrous ions when irradiated alanine powder is di ssolved in an acidic aqueous aerated solution (FX) containing ferrous sulphate and xylenol orange (XO). The present investigation shows that the impurities in reagent grade XO affect the ferric-XO-alanine compl ex formation as well as tie characteristic ferric ion concentration vs dose plot. Therefore, a calibration is necessary for any batch of XO used in FX dosimeter solution preparation.