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放射性药物[99mTc]二巯基丁二酸的稳定性:与[99Tc]乙二胺四乙酸配体交换反应的研究

Stability of the radiopharmaceutical [99mTc]DMSA: study of the ligand exchange reaction with [99Tc]EDTA.

作者信息

Garcia Muñoz M, Garcia Domenech R, Galvez Alvarez J, Moreno Frigols J

出版信息

Int J Appl Radiat Isot. 1983 Nov;34(11):1505-8. doi: 10.1016/0020-708x(83)90284-3.

DOI:10.1016/0020-708x(83)90284-3
PMID:6315599
Abstract

A kinetic study was made of the ligand exchange reaction between [99mTc]EDTA and DMSA. The results of this study indicate that this exchange reaction is closely related to temperature and pH. Kinetic and thermodynamic parameters demonstrate that both complexes--[99MTc]EDTA and [99mTc]DMSA--have a similar stability. Furthermore, the existence of an acid-basic catalysis for the global exchange reaction was established, and the catalytic parameters were calculated. These data were obtained by radiochromatography and visible spectrophotometry.

摘要

对[99mTc]乙二胺四乙酸(EDTA)与二巯基丁二酸(DMSA)之间的配体交换反应进行了动力学研究。该研究结果表明,这种交换反应与温度和pH密切相关。动力学和热力学参数表明,两种配合物——[99mTc]EDTA和[99mTc]DMSA——具有相似的稳定性。此外,确定了整体交换反应存在酸碱催化作用,并计算了催化参数。这些数据通过放射性色谱法和可见分光光度法获得。

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Int J Appl Radiat Isot. 1983 Nov;34(11):1505-8. doi: 10.1016/0020-708x(83)90284-3.
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