Abstract
Polyvinyl butyral films mixed with xylenol blue (XB) indicator and hexachloroethane (HCE) were prepared for possible application in food irradiation. Upon γ–irradiation the films undergo visual color change from yellow (XB, pH 8) to red (XB, pH 2.8) by H+ formation in the presence of HCE. The dosimetric characteristics of films containing different dye and HCE concentrations were investigated spectrophotometrically at λ max 555 nm. Radiation sensitivity is enhanced with HCE and, accordingly red color intensity. The prepared films can be applicable in dose range 0.25–10 kGy with uncertainty of dose reaching 4.45 % at 1σ.
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This work was financially supported by the National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Nasr City, Cairo, Egypt for basic research in the field of radiation technology applications.
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Soliman, Y.S., Beshir, W.B., Abdel-Fattah, A.A. et al. Radiation-induced coloration of xylenol blue/film containing hexachloroethane for food irradiation applications. J Radioanal Nucl Chem 310, 117–124 (2016). https://doi.org/10.1007/s10967-016-4747-z
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DOI: https://doi.org/10.1007/s10967-016-4747-z