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http://dx.doi.org/10.17946/JRST.2020.43.4.273

Physicochemical Analysis according to Temperature Changes of Iopamidol and Ioversol Formulation Contrast Agents  

Han, Beom-Hee (R&D Team of Radiation Science Technology Laboratory)
Publication Information
Journal of radiological science and technology / v.43, no.4, 2020 , pp. 273-280 More about this Journal
Abstract
In this study, the P contrast agent of Iopamidol, which is a nonionic iodide contrast agent most commonly used as a vascular contrast agent in medical institutions, and the O contrast agent of Ioversol, were studied. The physicochemical changes according to the temperature change were compared and analyzed using the Bruker Avance 500MHz Nuclear Magnetic Resonance Spectrometer owned by the Korea Basic Science Institute (KBSI). There was no physical or chemical change in the O contrast medium of Ioversol formulation in temperature change. However, in the P contrast agent of Iopamidol, a doublet peak began to appear in the 1.1 ppm region of the sample at 60℃, and the doublet peak was clearly observed in the sample at 80℃. As a result of this study, 1H-NMR analysis revealed that the P contrast agent of the Iopamidol formulation was dissociated from chemical bonds as it rose to a high temperature of 60℃ or higher, resulting in the formation of foreign substances. It was evaluated that the O contrast agent of Ioversol formulation had physico-chemical stability than the P contrast agent of Iopamidol formulation. As shown in this study, it is necessary to analyze the physical and chemical changes of contrast agents according to various environmental factors.
Keywords
Contrast Agents; Iopamidol; Ioversol; NMR; Temperature changes;
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