The aim of this study is to find the optimum conditions of labeling luteolin flavonoid compounds with technetium-99m (Tc) to meet the purity requirements stated in the United States Pharmacopeia. This compound is expected to be a potential radiotracer compound for diagnosing cancer. The optimization method in labeling luteolin with technetium determines the parameters such as pH, SnCl.2HO, genistein concentration, and incubation time. Optimization results of Technetium-99m-luteolin labeling obtained optimum pH conditions 8, the amount of SnCl.2HO as a reducing agent 60 μL, the optimum amount of luteolin 6 mg/ml, and the optimum incubation time is 30 min. This optimum condition obtained a Tc-Luteolin radiochemical purity yield of 94.15%. The radiochemical purity percentage of the Tc-Luteolin compound has fulfilled the requirements listed at United States Pharmacopeia, which is ≥90%.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7305782 | PMC |
| http://dx.doi.org/10.4103/japtr.JAPTR_161_19 | DOI Listing |
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