Plausible Applicability of Aqueous Congo Red Dye System as Secondary Gamma-ray Dosimeter
Aqueous congo red dye solutions in the concentration range of 0.01–0.03mM were irradiated for varying γ doses 0.050 kGy to 0.150 kGy. The molar extinction coefficient of the dye solution of congo red was found to be 2.70×105 at its absorption maxima 499.0 nm. No change in λmax was observed on irradi...
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| Format: | Article |
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Wiley
2008-01-01
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| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2008/809362 |
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| author | I. Das Sarma D. V. Parwate |
| author_facet | I. Das Sarma D. V. Parwate |
| author_sort | I. Das Sarma |
| collection | DOAJ |
| description | Aqueous congo red dye solutions in the concentration range of 0.01–0.03mM were irradiated for varying γ doses 0.050 kGy to 0.150 kGy. The molar extinction coefficient of the dye solution of congo red was found to be 2.70×105 at its absorption maxima 499.0 nm. No change in λmax was observed on irradiation. As the dye solutions are sensitive towards γ–irradiation, decolouration occurs on irradiation. The G–values for the doses in between the range of 0.035 kGy to 0.125 kGy were found to be practically constant for pure aqueous systems. Hence this was used to determine the dose of the gamma source. With the addition of alcohols in the systems, degradation of the dyes due to radiations decreased considerably. |
| format | Article |
| id | doaj-art-f3b99227875042ddb7d8e51f9a9e3ae7 |
| institution | Kabale University |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2008-01-01 |
| publisher | Wiley |
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| series | E-Journal of Chemistry |
| spelling | doaj-art-f3b99227875042ddb7d8e51f9a9e3ae72025-02-03T05:58:20ZengWileyE-Journal of Chemistry0973-49452090-98102008-01-015357257610.1155/2008/809362Plausible Applicability of Aqueous Congo Red Dye System as Secondary Gamma-ray DosimeterI. Das Sarma0D. V. Parwate1Department of Chemistry, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur – 440 033, IndiaDepartment of Chemistry, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur – 440 033, IndiaAqueous congo red dye solutions in the concentration range of 0.01–0.03mM were irradiated for varying γ doses 0.050 kGy to 0.150 kGy. The molar extinction coefficient of the dye solution of congo red was found to be 2.70×105 at its absorption maxima 499.0 nm. No change in λmax was observed on irradiation. As the dye solutions are sensitive towards γ–irradiation, decolouration occurs on irradiation. The G–values for the doses in between the range of 0.035 kGy to 0.125 kGy were found to be practically constant for pure aqueous systems. Hence this was used to determine the dose of the gamma source. With the addition of alcohols in the systems, degradation of the dyes due to radiations decreased considerably.http://dx.doi.org/10.1155/2008/809362 |
| spellingShingle | I. Das Sarma D. V. Parwate Plausible Applicability of Aqueous Congo Red Dye System as Secondary Gamma-ray Dosimeter E-Journal of Chemistry |
| title | Plausible Applicability of Aqueous Congo Red Dye System as Secondary Gamma-ray Dosimeter |
| title_full | Plausible Applicability of Aqueous Congo Red Dye System as Secondary Gamma-ray Dosimeter |
| title_fullStr | Plausible Applicability of Aqueous Congo Red Dye System as Secondary Gamma-ray Dosimeter |
| title_full_unstemmed | Plausible Applicability of Aqueous Congo Red Dye System as Secondary Gamma-ray Dosimeter |
| title_short | Plausible Applicability of Aqueous Congo Red Dye System as Secondary Gamma-ray Dosimeter |
| title_sort | plausible applicability of aqueous congo red dye system as secondary gamma ray dosimeter |
| url | http://dx.doi.org/10.1155/2008/809362 |
| work_keys_str_mv | AT idassarma plausibleapplicabilityofaqueouscongoreddyesystemassecondarygammaraydosimeter AT dvparwate plausibleapplicabilityofaqueouscongoreddyesystemassecondarygammaraydosimeter |