Determination of Radiochemical Purity of 99mTc-DTPA Using One-System Method of Paper Chromatography
The more efficient and effective quality control techniques for 99mTc-DTPA are needed because 99mTc has a short half-life of around 6.0 hours. We have succeeded in developing a one-system of TLC for radiochemical purity testing system that is faster and more practical. Two-system method of TLC for r...
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| Autores principales: | , , , , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
University of Brawijaya
2019
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/b6e3e1e6f94d4657add5da45c5e72060 |
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| Sumario: | The more efficient and effective quality control techniques for 99mTc-DTPA are needed because 99mTc has a short half-life of around 6.0 hours. We have succeeded in developing a one-system of TLC for radiochemical purity testing system that is faster and more practical. Two-system method of TLC for radiochemical purity testing uses mobile phase of methyl ethyl ketone as an A and 0.9% sodium chloride solution as a B. One-system method uses the mobile phase of a mixture solution of acetone and 0.9% sodium chloride. In this study, the determination of radiochemical purity of the one-system of TLC has been successfully developed using the Whatman-1 paper stationary phase and the mixed mobile phase between acetone and 0.9% sodium chloride solution. The mobile phase of acetone: 0.9% sodium chloride with a ratio of 9:1 shows the most optimum results. This phase can separate 99mTc-DTPA (Rf = 0.4-0.6) from 99mTcO4- (Rf = 0.9-1.0) and 99mTcO2 (Rf = 0.0-0.1) as radiochemical impurities. This result shows that the one-system of TLC method can be used for radiochemical purity testing of 99mTc-DTPA radiopharmaceutical kits. This method can completely separate the product compound (99mTc-DTPA) from its impurities (99mTcO2 and 99mTcO4-). |
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