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本文介绍用同位素示踪法研究木瓜胶在狗体内的存留时间和排泄途径。 材料和方法 ~(131)Ⅰ-木瓜胶的制备是以氯化钛为氧化剂,用~(131)Ⅰ标记(由原子能研究所标记)。~(131)Ⅰ-木瓜胶的比活性为275～260微居里/毫升。示踪剂量
This article describes the use of isotope tracing method to study the residence time and excretion of papaya in dogs. Materials and methods ~ (131) Ⅰ-papaya gel was prepared by using titanium chloride as oxidant and labeled with 131I (labeled by Atomic Energy Research Institute). The specific activity of ~ (131) I-papaya is 275 ~ 260 micro-curie / ml. Tracer dose