Methods: (1) The pharmacokinetics, bioditribution and excretion of rhTNT-IL-2 were investigated with radiolabels combined with Trichloroacetic acid (TCA) precipitation or single photon emission computed tomography (SPECT).

• 方法:(1)采用同位素标记示踪法结合三氯醋酸(TCA)沉淀法和单光子发射计算机断层扫描(SPECT)技术研究~(125)I-rhTNT-IL-2的药代动力学。