<sup>99</sup>Tc<sup>m</sup>放射性药盒中微量亚锡的测定

⁹⁹Tc^m放射性药盒中微量亚锡的测定

摘要: 用紫外-可见分光光度法测定了亚锡亚甲基二膦酸盐冻干品（MDP）、亚锡葡萄糖酸钠冻干品（Glu）、亚锡植酸盐冻干品（Phy）、亚锡二乙三胺五乙酸冻干品（DTPA） 4种药盒中微量亚锡离子的含量。络合物在460 nm处有特征吸收峰，显色时间为15 min，亚锡含量的测定范围选择为5～25 μg。该方法对4种药盒的测定具有灵敏性强、方便、快速等特点。

Abstract: The contents of tiny stannous ions in kits of MDP, Glu, Phy, DTPA were measured by ultraviolet-visible spectrophotometry. Characteristic absorption peak of the complex compound appears at 460 nm, and the chromogenic time is 15 min. The quality measuring range of stannous ion is chosen as 5-25 μg. This method has high sensitivity for the measurement of the four kits.