金盘电极微分阳极溶出法测定生物样品中的硒,采用紫外消化技术对样品进行处理,可防止硒的损失,测定结果的回收率达98%±6.7%,变异系数6.8%。在0.1mol·L~(-1)高氯酸底液中无硒峰出现,但加入Se(Ⅳ)0.01μg后,出现Se-Au互化物,再增加到Se(Ⅳ)0.05μg后,在—0.85V处得到了硒的良好峰形。本法灵敏度高,操作简单,可推广应用于不同生物样品测定痕量硒。 Gold plate electrode differential anodic stripping method for the determination of biological samples of selenium, the use of UV digestion technology samples were processed to prevent the loss of selenium, determination of the recovery rate of 98% ± 6.7%, coefficient of variation of 6.8%. No selenium peak appeared in 0.1 mol·L -1 perchlorate solution, but Se-Au intermetallic compound appeared after addition of 0.01 μg Se (Ⅳ), and then increased to 0.05 μg Se (Ⅳ) Good peak shape of selenium was obtained at -0.85V. The method of high sensitivity, simple operation, can be widely used in the determination of different biological samples of trace selenium.